P355NH Seamless Steel Tube

Hot finished P355N Seamless Steel Pipe,P355N Steel tube,P355n seamless tube supplies in according with European specification EN 10216-3 with normalized heat treatment.When supplies P355N Seamless Steel Pipe,P355N Steel tube,these tubes shall be free from external and internal surface defects,ultrasonic examination also shall be done for each tubes.

Technical Requirements & Additional Services for P355NH seamless pipe:
♦ Low temperature impact test at -20 ℃ with minimum energy at 27J on transverse direction
♦ Flattening test according to EN 10233
♦ Ring Tensile test comply to EN 10237

►Mechnical property for P355NH seamless pipe

P355NH seamless pipe
Thickness	T≤12	12<T≤20	20<T≤40	40<T≤50	50<T≤65	65<T≤80	80<T
Yield strength (≥Mpa)	355	355	345	335	325	315	305
Tensile strength (≥Mpa)	490 to 650		490 to 630			450 to 590

►Chemical composition for P355NH seamless pipe (Heat Analysis Max%)

Main chemical elements composition of P355NH
C	Mn	P	S	Si	Cr	Mo	Ni
0.20	0.9-1.7	0.025	0.020	0.50	0.3	0.08	0.50
Alt	Cu	N	Nb	Ti	V	Nb+Ti+V
0.02	0.3	0.02	0.05	0.04	0.10	0.12