Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of astm 4140 42crmo4 steel bar 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 4140/42CrMo4 is a type of low alloy steel that has good strength, plasticity and toughness, and also has good stability at high temperatures. After heat treatment, its strength and hardness can be effectively improved. It is commonly used in the manufacture of high-strength mechanical parts, such as bearings, gears, threaded workpieces, baffles and spare parts for machine tools.
Common 4140 Steel Specifications
| Country | USA | German | British | Japan | China | Australia |
| Standard | ASTM A29 | DIN 17200 | BS 970 | JIS G4105 | GB/T 3077 | AS 1444 |
| Grades | 4140 | 1.7225/ 42CrMo4 |
42CrMo4 | SCM440 | 42CrMo | 4140 |
4140 Steel Bar Chemical Composition
| Standard | Grade | C | Mn | P | S | Si | Cr | Mo |
| ASTM A29 | 4140 | 0.38-0.43 | 0.75-1.00 | 0.035 | 0.040 | 0.15-0.35 | 0.8-1.10 | 0.15-0.25 |
| EN 10083/EN 10250 | 42CrMo4/1.7225 | 0.38-0.45 | 0.6-0.9 | 0.035 | 0.035 | 0.4 | 0.9-1.2 | 0.15-0.30 |
| JIS G4105 | SCM440 | 0.38-0.43 | 0.60-0.85 | 0.03 | 0.03 | 0.15-0.35 | 0.9-1.2 | 0.15-0.30 |
| Physical Properties | Metric | US/Imperial |
| Density | 7.85 g/cc | 0.284 lb/in³ |
Products Description
| Description | carbon steel bar |
| Material range |
A32,AH32,A36,AH36,DH36,D32 DH32 10# 20# 45# Q195 Q215 Q235 Q345 Q235b Q355b SS490 SM400 SM490 SPHC SPHD SPHE SPHF SEA1002 SEA1006 SEA1008 SEA1010 S25C S35C S45C 65Mn SPHT1 SPHT2 SPH3 SPH4 QstE or customized |
|
Diameter |
10~300mm or customized. |
| Length |
3000~12000mm or customized |
| Tolerance | ASTM A312, ASTM A213, ASTM A269, ASTM A511, ASTM A789, ASTM A790, JIS3463, JIS3459, DIN2462, DIN17458, DIN17456, EN10216-5,ETC. |
| Suface Treatment |
natural color,black,mill,polished,brush,galvanized etc |
| Transport Package | With plastic caps on both end , pack into Bundles/customized |
| Trademark | Sailing/customized |
| MOQ | 1 piece( can provide samples) |
| Productivity | 3000 Ton Per Month |
| Certificate | GOST,PED by TUV, ISO9001 |
| Standard | GB/ASTM/ASME/DIN/EN/GOST/JIS/PED |
| Origin | China |
Usage |
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose |
WHY CHOOSE US
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