Application: Line pipe for oil and other combustible liquids, natural gas and other gaseous media
Standard: DIN 1628 (obsolete)
Designation of material: St 44.4
General
Material number: 1.0257
Former designation: -
Mechanical properties
Yield strength Rp0,5 MPa (in PSI): Min: 275 (39 900)** Max: -
Tensile strength Rm MPa (in PSI): Min: 420 (60 900) Max: 560 (81 200)
Elongation (% min.): transverse: 19 longitudinal: 21
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:-0.2
Si:-0.35
Mn:0.40-
P:-0.04
S:-0.04
Nb:--
V:--
Al total:0.02-
Ti:--
Cr:--
Ni:--
Mo:--
Cu:--
N:--
CEV max in %: -
This information is supplied without liability.
* negotiable or negotiable under further restrictions
** further restrictions are specified or value applies only for specific pipe size
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