|
CHROMIUM
BREARING STEELS
|
|
BS : 970
EN: Specn |
SAE/AISI
Specn |
IS : 4396
IS : 3930 IS : 4432 |
C
|
Mn
|
Si
|
Cr
|
|
EN-31
|
---
|
103Cr1
|
0.95/1.10
|
0.25/0.45
|
0.15/0.35
|
0.90/1.20
|
|
EN-31
|
52100
|
103Cr2
|
0.95/1.10
|
0.25/0.45
|
0.15/0.35
|
1.40/1.60
|
|
EN-18
D
|
5140
|
40Cr4
|
0.38/0.44
|
0.60/0.90
|
0.10/0.35
|
0.90/1.20
|
|
EN-48
|
5147
|
50Cr4
|
0.45/1.55
|
0.60/0.90
|
0.10/0.35
|
0.90/1.20
|
|
|
|
|
FREE
CUTTING STEELS
|
||||||
|
BS : 970
EN: Specn |
SAE/AISI
Specn |
IS : 4431
|
C
|
Mn
|
Si
|
S&P
|
|
EN-1
A
|
1213
|
11C10S25
|
0.08/0.15
|
0.80/1.20
|
0.10
|
0.25/0.05
|
|
EN-7
|
1115
|
25C12S14
|
0.20/0.30
|
1.00/1.50
|
0.25
|
0.15/0.05
|
|
EN-8
M
|
1140
|
40C10S18
|
0.35/0.45
|
0.80/1.20
|
0.25
|
0.20/0.05
|
|
EN-15
AM
|
1137
|
40C15S12
|
0.35/0.45
|
1.30/1.70
|
0.25
|
0.10/0.05
|
|
SPRING STEELS
|
||||||
|
BS : 970 |
SAE/AISI SPECN
|
IS : 3749
|
C
|
Mn
|
Si
|
Cr
|
|
EN-42J
|
1085
|
---
|
0.75/.90
|
0.60/0.90
|
0.20/0.35
|
---
|
|
EN-45
|
9225
|
T55 Si7
|
0.55/0.65
|
0.70/1.00
|
1.50/2.0
|
---
|
|
EN-47*
|
6150
|
T50 Cr4V2
|
0.45/0.55
|
0.50/0.80
|
0.30/0.50
|
0.80/1.20
|
|
EN-48
|
5147
|
T55 Cr3
|
0.45/0.55
|
0.60/0.90
|
0.10/0.35
|
0.90/1.20
|
| *V:0.15% | ||||||