Steels For Screws, Bolts and Studs

Steels generally used for metric screws, bolts and studs

Property ClassSizeMaterials per DIN 1)Materials per ANSI 1)
3.6
4.6
to M39QSt 36-2
USt 38-2
UQSt 36-2
UQSt 38-2
1006
1010
4.8to M16QSt 36-2
QSt 38-2
1006
1010
5.6to M39Cq 221022
5.8to M39Cq 22
Cq 35
1022
1035
8.8to M1222B2
28B2
Cq 35
10B22
10B28
1035 (1038)
to M2235B2
Cq 35
Cq 45
46 Cr 1
10B35
1035 (1038)
1045
over M24
to M39
34 Cr 4
37 Cr 4
46 Cr2
5132
5135
10.9to M635B2
Cq 35
10B35
1035
over M6
to M18
34 Cr 4
41 Cr 4
5132
5140
to M3941 Cr 4
34 CrMo 4
42 CrMo 4
5135
4137
4140
12.9to M1834 CrMo4
37 Cr 4
41 Cr 4
4137
5135
5140
to M2442CrMo 44140
to M3934 CrNiMo 64340
1) The above listed materials are generally used.  It is however up to the manufacturer's discretion to use any other material providing the final product meets the specified chemical composition and mechanical property.

*All information is strictly informative

 
 
 

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