S355NH Square Tubes

Square hollow sections S355NH in standard EN 10219-1 mainly used in all types of buildings,highway guardrails and signage,support columns,trusses,bridges,heavy equipment,storage systems and exercise equipments.High strength square steel pipes and tube S355NH have to be done low temperature imapcting test at -20 Deg.C with minimum average adsorbed energy 40 Joule.

Technical Requirements & Additional Services:
♦ Low temperature impacting test according to EN10045-1
♦ Wall thickness tolerance according to EN10210-2
♦ Ultrasonic test under EN 10160,ASTM A435,A577,A578
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Pre-Galvanized,Coating with shop prime.
 

►Mechnical property for S355NH Square Hollow Sections:

 

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 Square Hollow Sections (Heat Analysis Max%)

 

Main chemical elements composition of S355NH
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