Seamless Circular Tubes of Non Alloy Steels with Special Quality Requirements DIN1629

Type: Seamless Material: Carbon Steel Usage: Pipeline Transport, Machinery Industry, Construction & Decoration Trademark: VASTAR Technique: Hot Rolled Surface Treatment: Varnishing Section Shape: Round Origin: China Standard: DIN 1629
Size: OD(10.2 - 219.1 mm) x WT(1.6 - 45 mm)
Steel Grade: St37.0, St44.0, St52.0
Application: For manufacturing pipeline, vessel, equipment, pipe fittings and steel structure.

Standard	Grade	Chemical Composition
		C	Si	Mn	P\S	Cr
DIN1629	St37.0	≤0.17	/	/	≤0.04	/
	St44.0	≤0.21	/	/	≤0.04	/
	St52.0	≤0.22	≤0.55	≤1.7	≤0.04	/

 
Mechanical Properties:

Standard	Grade	Tensile strength	Yield strength	Elongation
DIN1629	St37.0	350~480	≥235	≥25
	St44.0	420~550	≥255	≥21
	St52.0	500~650	≥270	≥21

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