Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of astm 5140 engineering steel in China. With over 20 years' experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for wholesale service.
ASTM 5140 Engineering Steel is a high-strength steel with good mechanical properties and wear resistance, suitable for a variety of industrial applications, such as manufacturing shafts, pins, gears, machine tool accessories, etc.
In the aerospace sector,
ASTM 5140 Engineering Steel is widely used in the manufacture of aircraft components such as landing gear parts and engine parts for its high strength and excellent corrosion resistance.
In the automotive industry, ASTM 5140 Engineering Steel is widely used in the manufacture of engine parts, transmission parts, drive shafts and steering parts for its extremely high strength and toughness.
ASTM 5140 Engineering Steel is also widely used in the manufacture of ships, metallurgical equipment, construction machinery and other fields.
ASTM 5140 Engineering Steel equivalent
| Country | Japan | Germany | Britain | USA | China | Australia |
| Standard | JIS G4105 | DIN EN 10250 | BS970 | ASTM A29 | GB/T 3077 | AS 1444 |
| Grade | SCr440 | 41Cr4(1.7035) | / | 5140 | 40Cr | / |
ASTM 5140 Engineering Steel chemical composition
| Grade | C | Si | Mn | P | S | Cr | Ni | Cu |
| 5140 | 0.38~0.45 | 0.35-0.43 | 0.6~0.9 | 0.025 | 0.025 | 0.9~1.2 | 0.12 | 0.017 |
| SCr440 | 0.38 - 0.43 | 0.15 - 0.35 | 0.6~0.9 | 0.03 | 0.03 | 0.9~1.2 | 0.25 | 0.3 |
| 41Cr4(1.7035) | 0.38 - 0.45 | 0.4 | 0.6 - 0.9 | 0.025 | 0.035 | 0.9 - 1.2 | / | / |
| 40Cr | 0.37~0.44 | 0.17~0.37 | 0.50~0.80 | 0.030 | 0.030 | 0.80~1.10 | / | / |
ASTM 5140 Engineering steel overviews
| Round | Dia 6-1200mm | |
| Plate/Flat/Block | Thickness 6mm-500mm |
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| Width 20mm-1000mm |
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| Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
| Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | |
| Delivery condition | Forged; Hot rolled; Cold drawn | |
| Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | |
| Payment terms | T/T;L/C;/Money gram/ Paypal | |
| Trade terms | FOB; CIF; C&F; etc.. | |
| Delivery time | 30-45 days | |
| Application | 40Cr alloy steels are used for the fastening piece, machine elements, sleeve gear Extrusion dies and diecasting for alumium, Mandgnesium allay mostly, for copper alloy could use mechaincal press forhing of steel, gears, shafts, spindles, crankshafts, sleeves, pins, connecting rods, screws, nuts, intake valves, etc. | |
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