High Quality Hot Rolled Scm440/En19 /4140/ 42CrMo4 Low Alloy Steel Mould Steel

4140/SCM440/42CrMo4 steel, this steel has good machinability, processing deformation is small, fatigue resistance is quite good, such as hardenability steel,4140 heat treatment after good strength and good comprehensive mechanical properties, good technology, high yield. The highest use temperature is 427 ºC.4140 strength, high hardenability, good toughness, small deformation during quenching, high creep strength and lasting strength at high temperature. It is used for manufacturing forgings requiring higher strength and larger conditioning section than 35CrMo steel, such as large gear for locomotive traction, turbocharger transmission gear, rear shaft, connecting rod and spring clamp with great load, and can also be used for drilling pipe joints and fishing tools in deep oil Wells below 2000m, and can be used for bending machine mold, etc.   Electric-Furnace Smelting(EF)→Ladle Furnace(LF)→Vacuum Degassing(VD)→ Argon protected ingot →Multidirectional Forging → (Concave
forging →)Normalizing+Hydrogen Diffusion Annealing → Ultrasonic Flaw Detection →Queching+Tempering Prehardened

annealing annealing No.1 "760±10ºC annealing, furnace cooling to 400ºC air cooling. HB220-230
normalize No.4 860±10ºC normalizing, out of the oven air cold.
quenching water or oil at 840±10ºC is tempered at 680 to 700 degrees. HB< 217
quenching oil at 840±10ºC and tempering at 470 ºC is quenching according to quenching+tempering No.6. HRC41-45
quenching oil at 840±10ºC and tempering at 480 ºC is quenched according to quenching+tempering No.7. HRC35-45
quenching oil at 850ºC and tempering at 510 ºC is quenching according to quenching+tempering No.8. HRC38-42
quenching oil at 850ºC and tempering at 500 ºC is quenching according to quenching+tempering No.9. HRC40-43
quenching oil at 850ºC and tempering at 510ºC is quenching quenching quenching+tempering No.10. HRC36-42
quenching oil at 850ºC and tempering at 560ºC is quenching quenching quenching+tempering No.11. HRC32-36
quenching oil at 860ºC and tempering at 390 ºC is quenching according to quenching+tempering No.12. HRC48-52

Meide Import and Export Company is a professional supplier of metal materials. We can not only provide raw materials, but also provide customized material processing services. We have our own machining center, laser cutting equipment, sandblasting and painting equipment. One-stop service can be realized. Is a professional and experienced steel supplier. We can accept any third-party testing and product certification. Welcome to visit our company guide.

1. Who are we?
Our headquarter is located in Shandong, China. Since 2023, we have sold to North America (60.00%), Western Europe (14.00%) and South America (6.00%). There are about 11-50 people in our office.

2. How do we guarantee quality?
Always provide pre-production samples before mass production;
Always carry out final inspection before shipment;

3. What can you buy from us?
Copper, aluminum, die steel, titanium, customized machine parts
4. Why should you buy from us instead of other suppliers?
The company has 25 years of production experience. It has advanced precision production equipment, modern large warehouse, 200000 tons of inventory goods and a number of long-term stable cooperative customers.

5. What services can we provide?
Accepted delivery conditions: FOB, CFR, CIF, EXW
Accepted payment currency: US dollar, Euro, Japanese yen, Canadian dollar, Australian dollar, Hong Kong dollar, British pound, RMB, Swiss franc;
Accepted payment type: T/T, L/C, D/P D/A, PayPal;
Optional ports: Tianjin, Shanghai, Guangzhou;
Spoken: English, Chinese

6. How can we get your price?
A. We need the following information to quote for you:
1).  Product Name
2).  standard
3).  Material grade (chemical composition)
4).  dimension
5).  amount
6).  Special part drawing