We can supply Special Steel Round Bar AISI 4140,  42CrMo Alloy Steel Bar ,4140 Round Steel.If you are interested in chemical composition,mechanical property, and yield strength ,please send it to rita(at)firsteelworld(dot)com,and i can give you the mill/quality certificate.   

1. Grade:  AISI 4140/DIN 1.7225/JIS SCM440 alloy steel, chrome molybdenum steel

2. Specification: Dia: 10~600mm  Length:3000-5800mm or as required

3. Process: EAF+LF+VD+ Forged+ Heat Treatment (Annealed,A Normalized, Q+T)

4. Delivery Condition:Hot rolled,cold drawn,forged

5. Surface require:Black,grinding,bright,polish

6. Heat treatment:Quenched,Tempered,annealed

4. Machine Capability

Tensile strength (N/mm2Mpa): >=980

Elongation %: >=10

Yield strength: >=785

Hardness: HBS <≡217

Reduction of area:>=45%

If you need AISI4140 carbon alloy steel round bar or chemical composition,mechanical property,and yield strength, please send to rita(at)firsteelworld(dot)com.

Contact:

Sales Manager:Rita Zhang

Email:rita(at)firsteelworld(dot)com

Skype:zhang.rita9

Tel:86-371-55031185

Fax:86-371-86220366