Alloy steel
Characteristics: Besides the element C (short for carbon), alloy steel may contains one or several kinds of alloy elements i.e. Si,
Mn, V, Ti, B, Ni, Cr, Mo etc., which is easily hardened without deformation, and easily modified through heat treatment.
Main application: It is widely used in the manufacture of driving parts and fasteners including bolts, nuts, gear, connecting rod
and tool etc. on automobile, tractor, vessel, steam turbine, heavy load machine tool etc.
Dimensions:
Round steel bars: Φ12mm-Φ280mm Φ290mm –Φ1000mm Hot rolled, Forged
Flat steel bars: Thickness 10mm~200mm X Width 50~600mm X Length2000~6000mm
Hot rolled, Forged
Steel blocks: Thickness 200mm~800mmX Width 600~1200mmX Length 500~6000mm Forged
Dimensions:
Round steel bars: Φ12mm-Φ280mm Φ290mm –Φ1000mm Hot rolled, Forged
Flat steel bars: Thickness 10mm~200mm X Width 50~600mm X Length2000~6000mm
Hot rolled, Forged
Steel blocks: Thickness 200mm~800mmX Width 600~1200mmX Length 500~6000mm Forged
|
GB
|
JIS
|
ASTM
|
DIN
|
|
20Mn2-50Mn2
|
SMn420-SMn443
|
1320-1345
|
20Mn5-50Mn7
|
|
15Cr
|
SCr415
|
5115
|
17Cr3
|
|
20Cr
|
SCr420
|
5120
|
17Cr3
|
|
30Cr
|
SCr430
|
5130
|
28Cr4
|
|
35Cr
|
SCr435
|
5135
|
34Cr4
|
|
40Cr
|
SCr440
|
5140
|
41Cr4
|
|
45Cr
|
SCr445
|
5145
|
-
|
|
50Cr
|
-
|
5150
|
-
|
|
15CrMo
|
SCM415
|
-
|
15CrMo5
|
|
20CrMo
|
SCM420
|
4118
|
-
|
|
30CrMo
|
SCM430
|
4130
|
25CrMo4
|
|
35CrMo
|
SCM435
|
4135
|
34CrMo4
|
|
42CrMo
|
SCM440
|
4140
|
42CrMo4
|
|
15CrMn
|
-
|
5115
|
16MnCr5
|
|
20CrMn
|
SMnC420
|
5120
|
20MnCr5
|
|
20CrMnTi
|
-
|
-
|
-
|
|
38CrMoAl
|
SACM645
|
-
|
-
|
|
50CrV
|
-
|
6150
|
51CrV4
|
|
GCr15
|
-
|
SAE52100
|
100Cr6
|
|
20CrMnMo(H)
|
SCM421(H)
|
4119
|
-
|
|
40CrMnMo
|
SCM440
|
4142
|
42CrMo4
|
|
20CrNi-50CrNi
|
SNC236
|
4720
|
-
|
|
12CrNi2
|
SNC415
|
4320
|
10NiCr5-4
|
|
20CrNiMo
|
SNCM220
|
8620
|
21NiCrMo2
|
|
34CrNiMo
|
-
|
-
|
34CrNiMo6
|
|
40CrNiMo
|
SNCM439
|
4340
|
36CrNiMo4
|