S355NH Circular Hollow Section (Steel Tube)

High tensile strength S355NH circular hollow sections,S355NH steel tube,S355NH steel pipe shall be done impacting test under -20 Deg.C.Xinsteel stock extra long length of S355nh steel tube and S355NH steel pipe in EN10210 steel standard.

Technical Requirements & Additional Services for S355NH steel pipe:
♦ Low temperature impacting test according to EN10045-1
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Coating with shop prime
♦ Tolerances,dimensions and sectional properties according to to EN10210-2 Part 2
♦ Non destructive testing for steel tubes comply to EN 10246-3,EN10246-5,EN10246-8
 

►Mechnical property for S355NH Steel pipe:

 

Wall Thickness (mm)
	≤ 16	> 16 ≤ 40	> 40 ≤ 65	Impact temperature	Min.Energy
Yield strength (≥Mpa)	355	345	335	℃	J
Tensile strength (Mpa)	470-630			-20	40

►Chemical composition forS355NH Steel Pipe (Heat Analysis Max%)

 

Main chemical elements composition of S355NH steel pipe
C	Si	Mn	P	S	Nb	V
0.20	0.50	0.90-1.65	0.035	0.030	0.050	0.12
Alt min.	Ti	Cr	Ni	Mo	Cu	N
0.02	0.03	0.03	0.50	0.10	0.35	0.015