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Seamless steel tube P355NH and steel tube P235GH stock supplier
Source:Xin Steel Industry Date:2021/06/24
Seamless steel tube P355NH comes from specification EN 10216-3 alloy fine grain steel tubes for pressure purposes.Seamless steel tube P235GH comes from european specification EN 10216-2 non-alloy and alloy steel tubes with elevated temperature properties for pressure purposes.Non-Destructive testing shall be done for P355NH steel tube and P235GH steel tube,According to different test catagory,steel tube P235GH can be steel tube P235GH TC1 and steel tube P235GH TC2.
Steel tube P355NH shall be done impact test at minus 20 Degree centigrade with minimum impact energy 40 J in longitudinal direction or 27 J in transverse direction.Steel tube P355NH and steel tube P235GH shall be delivery with square cut ends,the ends shall be free from excessive burrs.When buyers requires minimum wall thickness,then the offering P355NH steel tube and P235GH steel tube can not be minus tolerance in wall thickness.
Comparasion Table for P355NH steel tube and P235GH steel tube with chemical composition and mechanical properties:
P235GH vs P355NH Chemical composition: Heat Analysis Max% Standard Grade C Mn P S Si Cu Nb Ti Cr Ni Mo Alt min V EN 10216-2 P235GH 0.16 1.20 0.025 0.020 0.35 0.30 0.01 0.04 0.30 0.30 0.08 0.02 0.02 EN 10216-3 P355NH 0.20 0.9-1.7 0.025 0.020 0.50 0.30 0.05 0.04 0.30 0.50 0.08 0.02 0.10 Mechanical Properties: Thickness Yield strength Tensile strength Mpa Min. Mpa EN 10216-2 P235GH T≤16 235 360-500 EN 10216-3 P355NH T≤20 355 490-650
