S50C is a senior high quality carbon steel, the oxygen converter steelmaking furnace and open hearth furnace or killed steel produced, has the characteristics of homogeneous microstructure. The carbon content of steel (wt%) is higher than 0.4, excellent wear resistance, ductility reduction, quenching deformation and cracking, the quenching is extremely important, must be cut after tempering and cooling, in order to avoid the occurrence of temper brittleness. Through the spheroidizing treatment, the machinability of this kind of carbon steel can be improved. The steel is usually tempered to a hardness of 19~22HRC after use to increase its machinability.
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2016年12月27日星期二
Corten B Steel Plates
Corten B Steel Plates are corrosion resistant and need no maintenance. The plates are developed using weathering steel and a protecting layer is their on the steel surface when used in hazardous weather conditions. These steel plates are used in welded bridges, high buildings and shipping container, and other outside steel structures. Further, our valuable clients can avail these plates from us at the most affordable rates.
Features
Higher weather resistance than normal grades
Minimum yield strength 50 KSI
Application
Architecture，Sculpture，Structural works，Industrial chimneys，Freight wagons，Silos，Containers，Pylons
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What is weather resistant steel
Weathering steel characteristics
The protective rust layer corrosion resistance, can be used for low alloy structural steel manufacturing, vehicle bridge, tower, steel structure container etc.. Compared with ordinary carbon steel, weathering steel has better corrosion resistance in atmosphere. Compared with stainless steel, weathering steel only trace alloy elements, such as phosphorus, copper, chromium, nickel, molybdenum, niobium, vanadium, titanium and other alloy elements, the total amount of only a few percent, while not as stainless steel, up to 10 percent, so the price is relatively low.
Weathering steel principle
Adding phosphorus, copper, chromium, nickel and other trace elements in steel, so that the formation of dense and protective film adhesion strong corrosion to steel surface, hinder the diffusion and development, protect the substrate rust layer below, in order to reduce the corrosion rate. Formed between the rust layer and the substrate is about 50 m ~ 100 m thick amorphous spinel oxide layer and the metal substrate and dense adhesion, because this layer of dense oxide film, prevent atmospheric oxygen and water to seep into the steel matrix, slows down the corrosion to the steel material depth development can greatly improve the corrosion resistance of atmospheric steel materials. Weathering steel is thinning, can use bare use or simplified coating, and the corrosion products and labor saving, Yanshou upgrading of the steel, but also a modern metallurgy can be integrated into the new mechanism, new technology, new technology and make the steel its continuous development and innovation.
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Performance of S50C steel products
Introduction to the properties of S50C steel products
(1) high quality carbon steel, the oxygen converter steelmaking furnace and open hearth furnace or killed steel produced, has the characteristics of homogeneous microstructure. The carbon content of steel (wt%) is higher than 0.4, excellent wear resistance, ductility reduction, quenching deformation and cracking, the quenching is extremely important, must be cut after tempering and cooling, in order to avoid the occurrence of temper brittleness.
Through the spheroidizing treatment, the machinability of this kind of carbon steel can be improved. The steel is usually tempered to a hardness of 19~22HRC after use to increase its machinability
(2) supply status and hardness 143~187HBS, 179~235HBS, 212~277HBS.
(3) steel characteristics: good machinability and machinability
(4) general purpose steel for plastic mold with board and mechanical parts
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NM400 wear resistant steel plate
NM400 is high strength wear resistant steel plate. NM400 has very high mechanical strength; the mechanical properties of ordinary low alloy steel plate is 3 to 5 times; can significantly improve the tolerance of mechanical wear parts; so as to improve the service life of machinery; reduce the production cost. The surface hardness of the product is usually 360 ~ 450HB. Suitable structural steel plate for processing and manufacturing wear resistant parts of mines and various engineering machinery.
NM400 wear-resistant steel plate is widely used in engineering machinery, mining machinery, coal mining machinery, environmental protection machinery, metallurgical machinery and other products and parts. Excavators, loaders, bulldozers shovel plate, blade plate, side edge plate, blade. Crusher lining, blade.
Wear-resistant steel delivery state is divided into: quenching and tempering (that is, quenching and tempering)
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2016年12月26日星期一
What is wear resistant steel
Wear resistant steel as a special steel began about the second half of nineteenth Century. In 1883 the British Hadfield (R0.A0.Hadfield) first made of high manganese steel patent, has been 100 years of history, is a kind of high manganese steel wear-resistant steel carbon and manganese content is higher, it has a history of 100 years old steel, because of its use in high impact abrasive wear conditions with strong work hardening ability at the same time, with good toughness and plasticity, and the production process is easy to grasp the advantages, therefore, it is still the amount of wear resistant steel one most (especially in the mining sector). In recent decades, the development and application in the development of low alloy wear-resistant steel is very fast, because of good abrasion resistance and toughness of the steel, the production process is simple, economical and reasonable, applicable in many conditions, users are welcome. In order to meet the needs of mine mining machinery and engineering machinery development, the development of high hardness wear-resistant steel plate, from twentieth Century to 70 in the international series has been formed and standardized in 80s. This kind of steel is the foundation for the development of welded steel in high strength low alloy on the up, they generally use rolling directly after quenching and tempering, or the implementation of controlled rolling and controlled cooling process was enhanced, which can save energy, and alloy element content is low, the price is cheap, but high hardness, wear resistance, process performance can be, because of these advantages make this type of wear resistant steel plate is very popular to the users. Some countries such as Japan, Britain, the United States and other countries are producing such wear-resistant steel.
Wear resistant steel variety, can be divided into high manganese steel, low alloy wear-resistant steel, chromium molybdenum silicon steel, steel corrosion, corrosion resistant steel and special wear-resistant steel. Some common alloy steels such as stainless steel, bearing steel, alloy tool steel and alloy structural steel are also under certain conditions as wear-resistant steel, due to their convenient source, excellent performance, so in the use of wear-resistant steel also occupy a certain proportion.
2016年12月15日星期四
Manganese steel
Steel is a high strength abrasion resistant steel, mainly for the need to withstand impact, extrusion and abrasion of material adverse conditions, the main failure mode to wear, fracture and deformation. The wear is divided into three types: the friction and wear between the contact surface of the metal component and movement; abrasive wear and erosion of flowing gas or liquid and metal contact wear caused by other metal or non-metal materials against the metal surface. The wear resistance of wear resistant steel depends on the material itself, and the wear resistant steel shows different wear resistance under different working conditions.
Cast steel and wear resistant steel with austenitic manganese steel, low alloy steel under certain conditions after proper heat treatment also has very good effect, graphite steel is used to lubricate the friction conditions.
Wear resistance of high manganese steel is especially suitable for high impact abrasive wear and abrasive wear conditions of force should be crushed, commonly used in the manufacture of ball mill liner, hammer crusher, jaw crusher plate, cone crusher rolling mortar wall and the crushing wall, bucket teeth of excavator, bucket wall, railway turnout, casting tractor and tank track plate impact resistance, abrasion resistance. High manganese steel is also used: armor plate, insurance box plate.
High manganese steel is typical of wear resistant steel, cast microstructure is austenite and carbide. After 1000 degrees C, the microstructure transformed into a single austenite or austenite with a small amount of carbide, but the toughness was improved.
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A36 ASTM steel plate
ASTM 36 is American Standard carbon structural plate, the implementation of the standard ASTM A36/A36M-03a, this standard is riveted on the bridge and building, bolted and welded steel structure, structure and quality of general purpose carbon steel, steel plate and steel bars.
A36 ASTM chemical composition:
C: = 0.25, Si = 0.40, Mn = 0.80-1.20, P = 0.04, S = 0.05, Cu = 0.20: (when the provisions of the copper steel)
Mechanical properties of A36 ASTM:
The yield strength is not less than 250.
Tensile strength: 550 - 400.
Elongation: 20.
Difference between carbon steel and stainless steel
Carbon steel is in addition to C, but not artificially added other alloying
elements in steel, of course C is controlled in a certain degree, high hardness
than pure iron. Generally do not have the ability of corrosion resistance.
Stainless steel refers to the amount of Cr is greater than or equal to 13%, stainless steel in the atmosphere. There are many types of stainless steel, stainless steel, austenitic stainless steel, martensitic stainless steel, etc.. Different corrosion resistance of stainless steel is different, and the corrosion resistance of different medium is different.
Generally, the difference between carbon steel and stainless steel depends on corrosion resistance, but in practical application, stainless steel with its excellent performance, has irreplaceable role as part of the steel, high temperature stainless steel, such as surface of stainless steel for a large number of excellent decoration materials, stainless steel has excellent mechanical properties the application in all kinds of manufacturing industry.
Stainless steel refers to the amount of Cr is greater than or equal to 13%, stainless steel in the atmosphere. There are many types of stainless steel, stainless steel, austenitic stainless steel, martensitic stainless steel, etc.. Different corrosion resistance of stainless steel is different, and the corrosion resistance of different medium is different.
Generally, the difference between carbon steel and stainless steel depends on corrosion resistance, but in practical application, stainless steel with its excellent performance, has irreplaceable role as part of the steel, high temperature stainless steel, such as surface of stainless steel for a large number of excellent decoration materials, stainless steel has excellent mechanical properties the application in all kinds of manufacturing industry.
304 stainless steel tube
304 stainless steel is one kind of universal, which is widely used to produce good performance (corrosion resistance and formability) equipment and parts. 304 stainless steel is produced in accordance with the United States ASTM standard of a grade of stainless steel. 304 equivalent to our country's 0Cr19Ni9 (0Cr18Ni9) stainless steel. 304 19% chromium, 9% nickel. The 304 is the most widely used stainless steel, heat-resistant steel, steel, steel industry utility. For food production equipment, general chemical equipment, nuclear energy, etc..
A high alloy steel corrosion resistance in the air or chemical corrosive medium, in order to maintain the inherent corrosion resistance of stainless steel, steel must contain at least 12% chromium.
What material is S355 steel plate
S355NL is the normalized steel in EN10025-3:2004 standard (fine grain steel). The yield strength and tensile strength and low alloy steel in China Q345.NL is required to do the corresponding impact in low temperature environment of 50 degrees below zero in the absorbed energy test. And the impact value of not less than 27J.
Z25 refers to the thickness of the steel plate to do the direction of lamellar tearing performance test, the main consideration is the seismic requirements.
Q235 ordinary carbon structural steel
Q235 ordinary carbon structural steel, also known as A3 board.
Ordinary carbon structural steel - Pu plate is a kind of steel material.
Basic introduction
Q is representative of the yield limit of this material, followed by 235, refers to the yield value of this material, in the 235MPa or so. And with the increase of the thickness of the material and the yield value decreased (thickness / diameter less than or equal to 16mm, yield strength is 235MPa; 16mm< thickness / diameter less than or equal to 40mm, yield strength is 225MPa; 40mm< thickness / diameter less than or equal to 60mm, yield strength is 215MPa; 60mm< thickness / diameter less than or equal to 100mm, yield strength 205MPa; 100mm< thickness / diameter less than or equal to 150mm, yield strength is 195MPa; 150mm< thickness / diameter less than or equal to 200mm, yield strength is 185MPa). Due to moderate carbon, better comprehensive performance, strength, plasticity and welding and other properties have been better coordination, the most widely used.
By the Q+ number + quality grade symbol + the method of symbol composition. The steel dubbed "Q", representing the yield point of steel, behind the digital representation of the yield point value, in units of MPa such as Q235 said the yield stress (s) for carbon steel 235 MPa.
The necessary grades can be marked behind said deoxidation methods of quality grades and symbols. The quality grade symbols are A, B, C, D. The method symbol: F said that the boiling steel; B said semi killed steel: Z said killed steel; TZ said special calm steel, calm steel can not mark, that is, TZ and Z are not standard. Q235-AF, for example, is a class of boiling steel.
For special purposes, such as steel, marine steel bridge, basically adopt carbon steel structure representation, but added that the final use of steel letters.
Ordinary carbon structural steel - Pu plate is a kind of steel material.
Basic introduction
Q is representative of the yield limit of this material, followed by 235, refers to the yield value of this material, in the 235MPa or so. And with the increase of the thickness of the material and the yield value decreased (thickness / diameter less than or equal to 16mm, yield strength is 235MPa; 16mm< thickness / diameter less than or equal to 40mm, yield strength is 225MPa; 40mm< thickness / diameter less than or equal to 60mm, yield strength is 215MPa; 60mm< thickness / diameter less than or equal to 100mm, yield strength 205MPa; 100mm< thickness / diameter less than or equal to 150mm, yield strength is 195MPa; 150mm< thickness / diameter less than or equal to 200mm, yield strength is 185MPa). Due to moderate carbon, better comprehensive performance, strength, plasticity and welding and other properties have been better coordination, the most widely used.
By the Q+ number + quality grade symbol + the method of symbol composition. The steel dubbed "Q", representing the yield point of steel, behind the digital representation of the yield point value, in units of MPa such as Q235 said the yield stress (s) for carbon steel 235 MPa.
The necessary grades can be marked behind said deoxidation methods of quality grades and symbols. The quality grade symbols are A, B, C, D. The method symbol: F said that the boiling steel; B said semi killed steel: Z said killed steel; TZ said special calm steel, calm steel can not mark, that is, TZ and Z are not standard. Q235-AF, for example, is a class of boiling steel.
For special purposes, such as steel, marine steel bridge, basically adopt carbon steel structure representation, but added that the final use of steel letters.
2016年12月13日星期二
ASTM A299 Steel Plate
Steel Category: Steel for Boilers and Pressure Vessels
Steel standard: ASTM
Steel grade: ASTM A299
ASTM steel Dimension:
Thickness :5-300mm Width :1500-3500mm Length :3000-12000mm
A299 steel plate Application:
A299 steel plate is commonly used throughout the oil industry (including inshore and offshore), the petrochemical industry and the gas production industry. A299 has good strength, it can be made of boilers and components to withstand a certain long-term high temperature stress; Boiler steel plate has good toughness and low effectiveness of the tendency in the use of bending, curling, deformation processing such as cold, after more prolonged storage and use remains a good toughness; A299 also has good weldability and resistance to intergranular corrosion. For the manufacture of boiler drum, beams and wall panels.
ASTM A299 steel chemical analysis -% by mass:
C: 0.28—0.30 Si:0.13—0.45 Mn: 0.84—1.62 S: 0.035 P:0.035
A299 steel plate Mechanical properties:
Yield Strength ReH: 275—290 Tensile Strength Rm:515—655
Fracture Elongation[%]: 19 Notch Impact[J]: ----
Henan Shi Di metal materials Co., Ltd.
Henan world import and export trade Co., Ltd. is a focus on steel sales and
steel processing and distribution of professional dealers. Over the years and
Wuyang iron and steel, Anyang iron and steel, iron and steel, Hebei iron and
steel, capital steel and other steel mills to establish a good long-term
relations of cooperation. The operating characteristics of the steel plate
mainly has extra thick steel plate, special wide steel plate and special steel
plate, widely used in pressure vessels, refractories, marine engineering,
high-rise buildings, die steel, ships and offshore steel, etc.. At the same time
to meet the individual needs of different customers on the plate, Henan Shi Di
Import & Export Trade Co. Ltd. adopts advanced flame cutting, plasma
cutting, laser cutting, sawing cutting blanking, machining of various shapes of
steel plate cutting products, its products and technology are exported to the
Middle East, South Korea, ASEAN and other areas in africa.
With the expansion of development and team Henan Shidi Import & Export Trade Co. Ltd. business, Henan Shi Di import and export trade limited company to keep pace with the times, actively integrate resources, in strength, exquisite technology of several major steel support plate, with abundant resources as the foundation, doing fine downstream industry chain, integration steel plate cutting, machining and other advantages of resources, technology and integrated into the flange for over thirty years, providing a variety of materials of cast steel, forged steel, alloy steel, carbon steel, stainless steel flange, flange flange flange and other products, from the source to the finished product quality, truly for the downstream pressure vessel manufacturing industry, shipbuilding industry, engineering machinery, machine tool manufacturing, power generation equipment, steel structure and mold parts and other service industries, to achieve all the resources, to meet individual needs.
Henan Shidi import and export trade limited company adhering to the "integrity management, quality service" business philosophy, not only cheap and fine products, steel plate flange of the steel plate cutting products for Chinese and foreign customers, with sincere service and professional experience for customers to achieve the highest price guide. Committed to making the world's production and processing enterprises more efficient and easy "procurement", Henan Shi Di import and export trade Co., Ltd. is willing to work with all sectors of the community to create a bright future for enterprises.
With the expansion of development and team Henan Shidi Import & Export Trade Co. Ltd. business, Henan Shi Di import and export trade limited company to keep pace with the times, actively integrate resources, in strength, exquisite technology of several major steel support plate, with abundant resources as the foundation, doing fine downstream industry chain, integration steel plate cutting, machining and other advantages of resources, technology and integrated into the flange for over thirty years, providing a variety of materials of cast steel, forged steel, alloy steel, carbon steel, stainless steel flange, flange flange flange and other products, from the source to the finished product quality, truly for the downstream pressure vessel manufacturing industry, shipbuilding industry, engineering machinery, machine tool manufacturing, power generation equipment, steel structure and mold parts and other service industries, to achieve all the resources, to meet individual needs.
Henan Shidi import and export trade limited company adhering to the "integrity management, quality service" business philosophy, not only cheap and fine products, steel plate flange of the steel plate cutting products for Chinese and foreign customers, with sincere service and professional experience for customers to achieve the highest price guide. Committed to making the world's production and processing enterprises more efficient and easy "procurement", Henan Shi Di import and export trade Co., Ltd. is willing to work with all sectors of the community to create a bright future for enterprises.
S690QL steel plate
S690QL chemical composition of the largest Cu 0.70, Mo 0.50, Nb maximum 0.06, Ni 2, Ti maximum 0.05, V 0.12, Zr maximum 0.15
S690QL implementation standards
WYJ, EN10025-6
S690QL use
S690QL for low temperature resistance, high strength of key parts, construction machinery, mining machinery structure, European standard high strength steel plate, the corresponding national standard Q690E Wugang high strength plate, manufacturing all kinds of construction machinery, such as various types of mines and construction projects for the drilling rig, excavator, electric wheel dump truck, truck, excavator, loader, all types of cranes, bulldozers, hydraulic support of coal mine machinery and equipment and other structural parts.
Mechanical properties of S690QL
S690QL: the yield strength is greater than or equal to 690- 0.2 for more than 650 MPa, S690QL: the ultimate tensile strength B 770-940MPa, S690QL: extension rate greater than 14 8 5%, S690QL:-40 C V type longitudinal impact power is more than 30J.
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stainless steel is not easy to rust the steel
In layman's terms, stainless steel is not easy to rust the steel, in fact, part of the stainless steel, both stainless steel, and acid resistance (corrosion resistance).
Stainless steel corrosion resistance and corrosion resistance is due to its surface chromium-rich oxide film (passive film) formation. This rust resistance and corrosion resistance are relative. The results show that the corrosion resistance of the steel increases with the increase of Cr content in the weak medium such as air, water and nitric acid. When the Cr content reaches a certain percentage, the corrosion resistance of the steel occurs Mutation, that is easy to rust from easy to rust, from corrosion to corrosion-resistant.
Stainless steel classification methods are many. According to the organizational structure at room temperature classification, martensitic, austenitic, ferritic and duplex stainless steel; according to the main chemical composition classification, basically can be divided into chromium stainless steel and chromium nickel stainless steel two systems; Resistant stainless steel, resistant to sulfuric acid stainless steel, seawater resistant stainless steel, etc., according to the type of corrosion resistance can be divided into pitting corrosion stainless steel, stainless steel, stress corrosion resistance, corrosion resistance of intergranular stainless steel; classification by functional characteristics can be divided into non- Magnetic stainless steel, free cutting stainless steel, low temperature stainless steel, high strength stainless steel and so on. As the stainless steel has excellent corrosion resistance, molding, compatibility and in a wide temperature range of strength and toughness characteristics of the series, so in the heavy industry, light industry, household products industry and building decoration industries have access to a wide range of applications .
What is the delivery condition of A572 steel plate
AR(As Hot Rolled), N(Normalized), T(Tempered), Q(Quenched), TMCP, Q+T(Quenched and Tempered), UT(Ultrasonic Test:ASTM A435,ASTM A578-C/B/A,EN10160-S0E1,S1E2,S2E3,S3E4), Impact Test, PWHT(Post Weld Heat Treatment), HIC, Z Test(Z15, Z25, Z35)
A572Gr60 steel plate
Name：A572 GR.60 steel plate
Material：A572 GR.60
Standard：ASTM
Thickness：Thickness: 6-80mm, Width: 1500-3000mm, Length: 6000-12000mm
Price：FOB/CIF
DeliveryTime：15-30 days, depending on the quantity
ASTM A572Gr.60 steel plate/sheet for Fine grain structural steels, thermomechanically rolled steels
ASTM A572Gr.60 steel plate/sheet,ASTM A572Gr.60 steel plate/sheet, under ASTM standard, we can regard S420M steel plate/sheet for Fine-grain structural steels, thermomechanically rolled steel.
ASTM A572Gr.60is a technical delivery conditions for thermomechanical rolled weldable fine grain structural steels.S means the structural steel, M means the delivery condition.Capital letter L for the quality with specified minimum values of values of impact energy.The ASTM A572 Gr.60 steel is equivalent to SEW TStE420TM,NFA E420R and EN S420M steel grade.
A572Gr50 Steel plate
Name：A572 GR.50 steel plate
Material：ASTM/SAE A572 GR.50
Standard：ASTM/SAE
Thickness：Thickness: 6-80mm, Width: 1500-3000mm, Length: 6000-12000mm
Price：FOB/CIF
DeliveryTime：15-30 days, depending on the quantity
ASTM A572Gr50 Fine-grain structural steels, normalised rolled steel
ASTM A572Gr50 steel plate/sheet, ASTM-SAE A572Gr50 steel plate/sheet, under ASTM standard, we can regard A572Gr50 Fine-grainstructural steels, normalised rolled steel. ASTM A572Gr50 steel plate/sheet is for Fine-grain structural steels, normalised rolled steel.The followings are the chemical composition and the mechanical properties of ASTM A572Gr50 steel.
S355J2 Steel Plate
Structural application in freight cars, transmission towers, dump trucks, cranes, trailers, bull dozers, excavators, forestry machines, railway wagons, dolphins, penstocks, pipes, highway bridges, building structures, oil and gas platforms, offshore structures, shipbuilding, power plant, palm oil equipments and machineries, fans, pumps, lifting equipments and port equipments.
201 stainless steel
Name：201 stainless steel
Material：stainless steel coil, stainless steel sheet, stainless pipe, stainless steel plate
Standard：ASTM/AISI/SAME/JIS/DIN
Thickness：Thickness: 0.25-100mm, Width: 1000-1500mm, Length: 2000-6000mm
Price：FOB/CIF/CFR
201 stainless steel is part of the 200 series of austenitic stainless steels. Originally developed to conserve nickel, this family of stainless steels is characterized by low-nickel content. 201 stainless steel can substitute for 301 stainless steel in many applications, but is less corrosion resistant than its counterpart, particularly in chemical environments.Annealed, it is non-magnetic, but can become magnetic by cold working. A greater nitrogen content in type 201 provides higher yield strength and toughness than type 301 steel, especially at low temperatures.
Delivery condition
Heat treatment: hot rolled or as customers' request.
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