Stud material

Basic material

Steel
4.8 *

A2 50 *
(stainless)

CuZn 37
(MS 63)

EN AW
AlMg 3

EN AW
Al 99,5

Steel tol C 0,30 %

1

2

1

0

0

Steell tol C 0,60 %

0

2

0

0

0

Sheet steel leaded, tinned or galvanized max. 30 ľ

2

2

1

0

0

Cr-Ni-Steel austenitic

2

1

2

0

0

CuZn 37 - CuZn 30
(MS 63-70) unleaded

2

2

1

0

0

Copper

2

2

2

0

0

Al 99-99,5

0

0

0

2

1

AlMg 3, AlMg 5, AlMgMn

0

0

0

1

2

AlMgSi 0,5, AlMgSi 1,
AlSi 5

0

0

0

2

2

Permitted starting torque (N x cm)

thread

 A _SP (mm˛)

4.8

A2-50

CuZn 37

EN AW AlMg 3

M 3

5,03

80

50

60

40

M 4

8,78

180

110

130

90

M 5

14,2

360

230

270

190

M 6

20,1

610

380

450

310

M 8

36,6

1500

950

1100

750

Short name

Materials

Standard

Mechanical Properties

PT
UT
IT
FD

4.8 (suitable for welding) ⁽¹⁾

EN 20898-1

R_m > 420 N/mm˛
R_eH > 340 N/mm˛
A₅  > 14 %

A2-50 (suitable for welding) ⁽²⁾

EN ISO 3506-3

R_m   > 500 N/mm˛
R_p0,2 > 210 N/mm˛
A_L     > 0,6d

CuZn 37

ISO 426-1
ISO 1638

R_m > 370 N/mm˛

EN AW - Al99,5

EN 573-3

R_m > 100 N/mm2

EN AW - AlMg 3

R_m > 180 N/mm˛

¹⁾ Studs made of unalloyed steels are suitable for welding, if hardening is low. This is usually the case at a C content > 0.18 %. Studs made of free-cutting steels are not suitable in general. The deoxidation type must be at least FN.

²⁾ Studs made of stainless steel are generally suitable for welding. Studs made of free-cutting steels are generally not suitable.