SCM440 4140 1.7225 Oil Hardening Alloy Hardened Tool Steel Bars For Mechanical

SCM440 4140 1.7225 oil hardening tool steel bars For Mechanical

SCM440 4140 1.7225 oil hardening tool steel bars For Mechanical

Chemical composition(%):

Equivalent grades:

Available size(mm):

Feature:
1. Good strength, hardenability and toughness.
2. High creep strength and long lasting strength under the high temperature.

Appliation:
Production load large, complex shape and valuable tool (e.g, scraper, gear, milling cutter, drilling, tapping, etc.)Cold forging die, forging tools;Strip cutting machine, heading forming die.

Hardness:

Anneal≤217HB

Q+T 28-32HRC

Heat Treatment

1) Forging

Preheat the steel carefully, then raise the temperature to 1150-1200°C for forging. Do not forge below 850°C.

2) Annealing

Heat the AISI 4140 slowly to 800-850°C and allow enough time for the steel to be thoroughly heated. Cool slowly in the furnace to 480°C followed by air cooling.

FAQ:
 

Q: Are you a manufacturer or merely a trader?
A: We are trading company act as exporting Steel Products with our own factory,
we can manufacture the products as in cutomer's requirement,wholesale and retail all kinds of domestic mould steel,the price we offered is very competitive compared with other agents.
 

Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as SGS, CE,ISO if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival. Third,the products we export are mainly from ShaGang group, WenFeng group, XingCheng group, DongTe group,DaYe and so on, the quality are certained.

Changfeng Tool & Die Steel main product:

Product: