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P355QH1 forged Steel flanges EN 10222-4 steel forged flange 1.0571 forged Steel flanges

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Product Description
Grade : P355QH1
Number: 1.0571
Classification: Non-alloy steel
Standard:
EN 10222-4: 1999 Steel forgings for pressure purposes. Weldable fine-grain steels with high proof strength

 

Chemical composition % of steel P355QH1 (1.0571): EN 10222-4-1999
C Si Mn Ni P S Cr Mo V N Nb Al Cu -
max 0.2 0.1 - 0.5 0.9 - 1.65 max 0.3 max 0.025 max 0.015 max 0.3 max 0.08 max 0.1 max 0.02 max 0.05 0.02 - 0.06 max 0.2 Nb+V < 0.12


Mechanical properties of steel P355QH1 (1.0571)
 
Rm - Tensile strength (MPa) 470-630
 
ReH - Minimum yield strength (MPa) 275-355
 
KV - Impact energy (J) longitud., (+QT) +20°
63

55
-20°
47
-40°
34
KV - Impact energy (J) transverse, (+QT) +20°
40

34
-20°
27
 
A - Min. elongation at fracture (%) longitud., 21-23
A - Min. elongation at fracture (%) transverse, 19-21

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Company BEST PIPELINE EQUIPMENT CO.,LTD
Location China Factory : Suzhou Industrial Park, JiangSu Province,China
Contact Person amy

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