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Steel grades

Application: Line pipe for oil and other combustible liquids, natural gas and other gaseous media
Standard: DIN 1628 (obsolete)
Designation of material: St 37.4
General
Material number: 1.0255
Former designation: -
Mechanical properties
Yield strength Rp0,5 MPa (in PSI): Min: 235 (34 100)** Max: -
Tensile strength Rm MPa (in PSI): Min: 350 (50 800) Max: 480 (69 600)
Elongation (% min.): transverse: 23 longitudinal: 25
Impact strength:
Test temperature in °C:
Min. average impact energy in J:
20
transverse: 27
 
longitudinal: 43
Hardness (max. HRC): -
Chemical composition
Content in mass-%:
Quality: Min: Max:
C: - 0.17
Si: - 0.35
Mn: 0.35 -
P: - 0.04
S: - 0.04
Nb: - -
V: - -
Al total: 0.02 -
Ti: - -
Cr: - -
Ni: - -
Mo: - -
Cu: - -
N: - -
CEV max in %: -
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