JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
| Payment Terms | L/C, T/T |
| Supply Ability | 50000KGS |
| Delivery Time | 7 Days |
| Packaging Details | Wooden Box |
| Steel grade | Alloy Steel,ss400 a36 s45c sae1045 42CrMo |
| Alloy or not | Is Alloy |
| Technique | Hot Rolled,Forged,Cold Drawn |
| Application | Structural Steel Bar,Die Steel Bar,chemical,shipbuilding |
| Type | Alloy Steel Bar,Carbon Steel Bar |
| Standard | ASTM,DIN,AISI,JIS |
| Shape | Round |
| Length | 1--12m |
| Surface | black or bright |
| Diameter | 12mm-650mm |
| Delivery condition | annealed,hot rolled/forged |
| Heat treatment | Normalized +Annealed +Quenched + Tempered |
| Brand Name | MITTEL TISCO BAO STEEL |
| Model Number | 5140 40cr Scr440 |
| Certification | SGS ISO MTC |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 50000KGS |
| Delivery Time | 7 Days | Packaging Details | Wooden Box |
| Steel grade | Alloy Steel,ss400 a36 s45c sae1045 42CrMo | Alloy or not | Is Alloy |
| Technique | Hot Rolled,Forged,Cold Drawn | Application | Structural Steel Bar,Die Steel Bar,chemical,shipbuilding |
| Type | Alloy Steel Bar,Carbon Steel Bar | Standard | ASTM,DIN,AISI,JIS |
| Shape | Round | Length | 1--12m |
| Surface | black or bright | Diameter | 12mm-650mm |
| Delivery condition | annealed,hot rolled/forged | Heat treatment | Normalized +Annealed +Quenched + Tempered |
| Brand Name | MITTEL TISCO BAO STEEL | Model Number | 5140 40cr Scr440 |
| Certification | SGS ISO MTC | Place of Origin | China |
| High Light | Alloy Steel Round Bars Hot Rolled ，Scr440 Steel Round Bars ，5140 40cr Steel Round Bars | ||
Machined Bars 5140 40cr Scr440 Hot Rolled 5140 Alloy Tool Steel Round Bar
40Cr steel material widely be used in the machine-building industry. 40Cr is a standard grade of GB. After quenching and tempering, it will get great comprehensive mechanical property and great low-temperature impact toughness. And its hardenability is good. After the oil quenching, the fatigue limit will be higher. But the fittings with complex shape is easy to get crack after the water quenching. It is also suitable for cyaniding and high-frequency quenching beside Q+T. Its machinability also is good, if the hardness is 174-229 HB, the machinability is 60%. 40Cr steel material is a good choice for medium type plastic mold. It belongs to mild Q+T steel and cold heading mold steel. Also, the price is not high, easy to be processed. After the right heat treatment, it will get good toughness, plasticity and wear resistance. Tempering at the range of 550-570℃, it will get the best mechanical property. The equivalent steel grade of 40Cr is 40MnB, 45 MnB, 35SiMn, 42SiMn, 40MnVB, 42MnV, 40MnMoB, 40MnWB and etc.
| Grade | C(%) | Si(%) | Mn(%) | Cr(%) | P(%) | S(%) | Cu(%) | Ni(%) | Mo |
|---|---|---|---|---|---|---|---|---|---|
| 40Cr | 0.37-0.44 | 0.17-0.37 | 0.50-0.80 | 0.80-1.10 | MAX 0.035 | MAX 0.035 | MAX 0.30 | MAX 0.30 | MAX 0.15 |
It is one of the most popular steel grades in the industry. After Q+T heat treatment, it usually is used to make parts. Such as the gears of machine tools, shaft, worm, spline shaft and etc. If it is through quenching and tempering; high-frequency quenching, it will be good choice for fittings with high hardness and wear resistance. For example, wheel gear, shaft, principal axis, crankshaft, arbor, inlet valve, bolt and etc.
After quenching and tempering, the hardness of 40Cr is in the range of 32-36HRC, which means about 301-340 HB.
The carbon content of 40Cr is lower than 45# steel. At the condition of hot-rolled, their mechanical property is almost the same. But the price of 40Cr is higher than 45# steel about a half. So if your budget is not high, you maybe need to choose the 45# steel.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Exporter,Seller
Year Established:
1998
Total Annual:
80Millen-100 Millen
Employee Number:
200~500
Ecer Certification：
Verified Supplier
Jiangsu Mittel Steel Industrial Limited is located in Wuxi City, a beautiful city near Shanghai. Wuxi is close to Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transporta... Jiangsu Mittel Steel Industrial Limited is located in Wuxi City, a beautiful city near Shanghai. Wuxi is close to Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transporta...
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