Russia
Japan
China
India
GOST
JIS
GB
IS
MG Vergnano
Application ISO 513
20860 20880 20895
P.1 P.1 P.1 P.2 P.2 P.2 P.2 P.2 P.2 P.2 P.2 P.2 P.2 P.2 P.2 P.2 P.4 P.5 P.4 P.5 P.1 P.1 P.1 P.2 P.1 P.1 P.3 P.3 P.3 P.3 P.3 P.3 P.3 P.3
Mild/magnetic
St3kp/St3ps St4ps/St4sp St5ps/St5sp St6ps/St6sp
STKM12C
Q235A Q275B
STK400
Fe440 Fe490 Fe570 Fe540
SS490 S45C
Q275
Structural
45
17G1S
STK490
16Mn
10 15
S10C S15C
10 15
14C6
18ChG 18 ChG
SCR415
20CrMn 20CrMn
16Mn5Cr4 20Mn5Cr5
SMnC420H
Case hardening
15ChGN2T
SNCM415M
15Cr6Ni6
20ChGNM SNCM220M 20CrNiMo
20ChN2M
16Ni6Cr7Mo3
SBV1A/SBV1B
Nitriding
38Ch2MJuA
SACM645
38CrMoAl
40Cr7Al10Mo2
A11
SUM21 SUM22 SUM22L
Y12 Y15
Y15Pb
Free cutting
A35
Y35
SUM25 SUM24L
25 30 35 40 45 50 55 60
S25C S30C S35C S40C S45C S50C S55C S58C
25 30 35 40 45 50 55 60
25C4 30C8 35C8 40C8 45C8 50C8 55C8 C604 40Cr4
40Ch 50Ch
SCr440(H)
40Cr
P.4 (norm.) / P.5 (Q+T) P.4 (norm.) / P.5 (Q+T) P.4 (norm.) / P.5 (Q+T) P.4 (norm.) / P.5 (Q+T) P.4 (norm.) / P.5 (Q+T) P.4 (norm.) / P.5 (Q+T) P.5 (norm.) / P.6 (Q+T) P.5 (norm.) / P.6 (Q+T) P.4 (norm.) / P.5 (Q+T) P.5 (norm.) / P.6 (Q+T)
Heat-treatable
SUP10
50CrVA 30CrMo 35CrMo 42CrMo
50Cr4V2
30ChM 35ChML
SCCrM1 SCM435 SCM440
21Cr4Mo2
38ChA
40CrMoH
50Ch
SCM445(H) SNCM431 SNCM439
ZG50Cr1Mo
38Ch2N2MA
40ChGMN
40CrNiMoA
SChCh15
SUJ2/SUJ4
GCr15
P.4 (norm.) P.4 (norm.)
Ball bearing
65
S70C-CSP
65 75 85
70C6
P.3 P.3 P.3
75A 85A
S75CM
SK85
SK4-CSP
T10A
98C6
P.3 P.4 (norm.) / P.5 (Q+T) P.4 (norm.) / P.5 (Q+T) P.4 (norm.) / P.5 (Q+T) P.4 (norm.) / P.5 (Q+T) P.4 (norm.) / P.6 (Q+T) P.4 (norm.) / P.6 (Q+T) P.4 (norm.) / P.6 (Q+T) P.3
55S2/55S2A
55Si2Mn 60Si2Mn 60Si2CrA
55Si7 60Si7
Spring
60S2
SUP6
60S2G
50Ch
SUP10
50CrVA
50Cr4V2
50ChGA
SUP9(A)
55CrMnA
55Cr3
P.3 P.3 P.4 P.5 P.5 P.5
50
S50C
Superficial hardening
38CrA
35Ch
SCr435H
35Cr
40ChFA
SNB22
42CrMo
40Cr4Mo3
259
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