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DIN 1628 St44.4 welded steel tubes/pipes Details
Thickness: 0.89 - 15 mm
Section Shape: Round
Outer Diameter: 6.35 - 127 mm
Secondary Or Not: Non-secondary
Application: Fluid Pipe
Technique: Hot Rolled
Certification: API Surface
Treatment: Galvanized
Special Pipe: API Pipe
Alloy Or Not: Non-alloy
DIN 1628 St44.4 welded steel pipes chemical composition
| Chemical composition | ||||||||
| Steel grade | Type of deoxidation (RR.fully killed) | Chemical composition, % by mass | Addition of nitrogen fixing elements (e.g.no less than 0.020% Al total) | |||||
| Symbol | Material number | C | Si | Mn | P | S | ||
| max | max | |||||||
| St 44.4 | 1.0257 | RR | 0.20 | 0.35 | >=0.35 | 0.040 | 0.040 | Yes |
DIN 1628 St44.4 welded steel pipes Specifications
1 We can manufacture steel pipes
2 ISO&API Certificated
3 OD 1/8"-2"
DIN 1628 St44.4 welded steel pipes Technique:
Welded:Cold drawn,Hot rolled,heat extrusion
DIN 1628 St44.4 welded steel pipes mechanical property
| Steel grade | Upper yield stress Reh for wall thickness in mm | Tensile strength Rm N/mm2 | Elongation after fracture A5 | Impact energy ISO V-notch test pieces at+20°C | |||||
| Symbol | Material number | Up to 16 | 16-40 | 40-65 | longitudinal | transverse | longitudinal | transverse | |
| N/mm2 min | % min | / min | |||||||
| St 44.4 | 1.0257 | 275 | 265 | 255 | 420 to 550 | 21 | 19 | 43 | 27 |
