- Cast & Forged[10]
- Steel Round Bars[10]
- Square Steel[1]
- Structural Steel[1]
- Carbon[1]
- Steel Wire[2]
- Bearing Steel[5]
- Stainless Steel Sheets[1]
- Steel Sheets[1]
- Contact Person : Ms. zeng meixiang
- Company Name : Nanjing Best Lion Special Steel Co., Ltd.
- Tel : 086-025-83842017
- Fax : 086-025-57112981
- Address : Jiangsu,NanJing City,The qin garden road No 15 liuhe area Nanjing City
- Country/Region : China
- Zip : 211500
alloy round hot rolled steel bar AISI 4140
hot rolled AISI 4140 alloy round steel bar
material:AISI 4140/42CrMo4/42CrMo/SCR440
size:60*6000 mm(16-250mm)
state of delivery:hot rolled
manufacturing process:LD+LF+CCM
Norm:GB/T 3077-1999
origin:China Jiangsu province
Chemical component(%):
C 0.40,Si 0.24,Mn 0.62,Cr 1.00,Ni 0.02,Mo 0.16,Cu 0.01,P 0.011 ,S 0.005,Al 0.007
Heat treatment:
Temprature:860 degrees Celsius
Time:50 min
Medium:oil
Mechanical properties:
Rel(N/MM2):1020
Rm(N/MM2):1100
A(%):17
Z(%):59
Aku2(J):64
Macro-structure(Grade):
scattered porosity:0.0/0.0
central porosity:1.0/1.0
segregation:0.0/0.0
Application: AISI 4140 bars with quenching and tempering used for manufacturing under medium load and mechanical parts,such as:axle,machine tools,shafts,gears,sleeves,mandrel,rings ,bolt etc
alloy round hot rolled steel bar AISI 4140
