1.0257 (St44.4)

Classification

Country Section Category
Germany Non-alloy Steels Other Structural Steels (Not Intended for Heat Treatment with Rm < 500 MPa)

Chemical composition

Standard Fe, % Si, % Mn, % P, % C, % S, %
> 98.97 < 0.35 < 0.4 < 0.04 < 0.2 < 0.04

Information on suppliers

Properties

Property
According to DIN 1630 Test at elevated temperature test Temperature 250°C wall Thickness: 40 - 65 mm ; yield strength: 180 MPa
According to DIN 1630 wall Thickness: < 16 mm ; yield strength: 420 - 550 MPa
According to DIN 1630 wall Thickness: 16 - 40 mm ; yield strength: > 265 MPa
According to DIN 1630 wall Thickness: 16 - 40 mm ; yield strength: 420 - 550 MPa
According to DIN 1630 wall Thickness: 40 - 65 mm ; yield strength: > 255 MPa
According to DIN 1630 wall Thickness: 40 - 65 mm ; tensile strength: 420 - 550 MPa
According to DIN 1630 Condition NBK note annealing in a protective atmosphere or vacuum.
According to DIN 1630 Condition NBK wall Thickness: < 16 mm ; yield strength: > 265 MPa
According to DIN 1630 Condition NBK wall Thickness: < 16 mm ; yield strength: 410 - 550 MPa
According to DIN 1630 Condition NBK wall Thickness: 16 - 40 mm ; yield strength: > 255 MPa
According to DIN 1630 Condition NBK wall Thickness: 16 - 40 mm ; yield strength: 410 - 550 MPa
According to DIN 1630 Condition NBK wall Thickness: 40 - 65 mm ; yield strength: > 245 MPa
According to DIN 1630 Condition NBK wall Thickness: 40 - 65 mm ; tensile strength: 410 - 550 MPa
According to DIN 1630 Longitudinal specimens elongation: > 21 %
According to DIN 1630 Longitudinal samples Job blow KV at 20°C [68°F]: > 43 j
According to DIN 1630 Transverse specimens elongation: > 19 %
According to DIN 1630 Transverse samples Job blow KV at 20°C [68°F]: > 27 j
According to DIN 1630 Test at elevated temperature test Temperature 50°C wall Thickness: < 16 mm ; yield strength: 275 MPa
According to DIN 1630 Test at elevated temperature test Temperature 50°C wall Thickness: 16 - 40 mm ; yield Limit: 265 MPa
According to DIN 1630 Test at elevated temperature test Temperature 50°C wall Thickness: 40 - 65 mm ; yield strength: 255 MPa
According to DIN 1630 Test at elevated temperature test Temperature 200°C wall Thickness: < 16 mm ; yield strength: 215 MPa
According to DIN 1630 Test at elevated temperature test Temperature 200°C wall Thickness: 16 - 40 mm ; yield strength: 205 MPa
According to DIN 1630 Test at elevated temperature test Temperature 200°C wall Thickness: 40 - 65 mm ; yield strength: 200 MPa
According to DIN 1630 Test at elevated temperature test Temperature 200°C test Temperature 250°C wall Thickness: < 16 mm ; yield strength: 195 MPa
According to DIN 1630 Test at elevated temperature test Temperature 250°C wall Thickness: 16 - 40 mm ; yield strength: 185 MPa
According to DIN 1630 Test at elevated temperature test Temperature 250°C wall Thickness: 40 - 65 mm ; yield strength: 180 MPa
According to DIN 1630 Test at elevated temperature test Temperature 300°C wall Thickness: < 16 mm ; yield strength: 165 MPa
According to DIN 1630 Test at elevated temperature test Temperature 300°C wall Thickness: 16 - 40 mm ; yield strength: 160 MPa
According to DIN 1630 Test at elevated temperature test Temperature 300°C wall Thickness: 40 - 65 mm ; yield strength: 155 MPa
Density: 7.85 g / cm3

Analogues

Germany CIS, Russia, Ukraine USA
P 275 T2 22K P265TR1

Standards

Standard Description
DIN 1628
DIN 1630

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
P % Phosphorus
C % Carbon
S % Sulfur