Product Description
40cr 5140 35crmo Hot Rolled Carbon Steel Round Bar Alloy Round Bar
AISI 5140 Alloy steel manufacturers and suppliers, supplied in round rods, square/flat bars, rollers, shafts, blocks and forging pieces.
AISI 5140 alloy steel is a structural alloyed carbon steel according to AISI/ASTM standard which is widely used in Low and moderately stressed parts for vehicles, engines and machines where hard, wear resisting surface is needed. The hardness as surface hardened is about 54 HRC.
| Chemical Composition | |||||||
| Carbon | Manganese | Silicon | Chromium | Molybdenum | Phosphorous | Sulphur | |
| Min | 0.38 | 0.7 | 0.15 | 0.7 | |||
| Max | 0.43 | 0.9 | 0.35 | 0.9 | 0.06 | 0.035 | 0.04 |
| Mechanical Property( for guidance only) | |||||||
| Tensile strength | Yield strength | Elongation | Reduction of area | ||||
| 980Mpa | 745MPa | 11 | 45 | ||||
| Related Specification | |||||||
| DIN: 41Cr4 W-Nr: 1.7035 JIS/KS: SCr440 | |||||||
| Heat Treatment | |||||||
| Hardening&Tempering Hardening is used to meet specific mechanical properties which can make the material fit for use. Tempering is used to remove the stresses and brittleness caused by quenching, develop the required mechanical properties,and improve dimensional stability and toughness. Annealing Annealing is a process used to soften the material,enhance the machinability and toughness,increase the ductility and improve the homogeneity in material. Normalizing Normalizing is used to make material softer , refine the grain size and improve the uniformity of microstructure and properties. | |||||||
| Delivery Condition | |||||||
| Shape:Round / Square / Flat Bars, Shafts, Rollers, Blocks. Forged round bar Diameter: 80-1,200mm Length: 3,000-10,000mm(can be customized) Rolled round bar Diameter: 10-300mm Length: 3,000-10,000mm(can be customized) Forged square bar Size: 150×150-600×600mm Length: 3,000-8,000mm Surface condition: Black/Peeled/Smooth Turned Tolerance:As per customer requirement Straightness:Max 3mm/m(Enhanced straightness may be available on request) | |||||||
| Structure & NDE | |||||||
| Grain size : ASTM 5 or finer Forging ratio :minimum 3:1 Ultrasonic test: 100% ultrasonically tested As per SEP1921 Class C/c , D/d or ASTM A388 | |||||||
| Quality Certification | |||||||
| A material test report will be provided, documenting the following: 1.Chemical analysis 2.Mechanical properties 3.Surface hardness 4.Grain size 5.Forging ratio 6.NDE test method/criteria | |||||||
| Application | |||||||
| Automotive, Aerospace, Power Generation, Oil & Gas, Coal, Energy, Transportation and Shipbuilding Industries | |||||||
Hunan Qilu Industrial Co., Ltd has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.
Hunan Qilu Industrial Co., Ltd were already engaged in exporting steel for 11 years, could supply a great variety of hot forged, hot rolled and cold drawn Steels, including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Qilu Industrial also has their own heating treatment shop and machining shop to provide heating and cutting service.
Since 2008 year, Hunan Qilu Industrial has the right to export all FORGED STEEL behalf of Qilu Speical Steel Co.,ltd which is specialized in smelting and forging of special steel since 1965 year, now Qilu special steel is one of the biggest manufacturer of forged product in China.The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial. We already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.
Qilu Industrial is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.
The company owns advanced special steel smelting facilities and forging processing equipments, the main steel-making equipment include 2 sets of 50t ultra-high power electric arc furnaces,2 sets of 60t LF refining furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of 1-20t electroslag re-melting furnaces.
The main forging equipments mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of high-speed forging units of 800t,1600t,2000t and 4500t respectively.
Hunan Qilu Industrial CO., LTD
Web: qilusteel.en.made-in-china.com