S355JR ms structural steel pipe Description

S355JR is a kind of European standard low alloy high strength structural steel, the 'S' in its name stands for structural steel, and '355' indicates that the yield strength of the steel is close to 355MPa. square tubes made through the hot forming process, S355JR is widely used to make all kinds of mechanical parts, engineering vehicle structures, etc. S355JR is widely used in the production of various types of mechanical parts, engineering vehicle structure. This steel in the hot forming process, still maintains excellent mechanical properties, especially in the low-temperature environment shows good toughness, which makes it in some low-temperature environment of the application performance is relatively outstanding.

S355JR Square Hollow Section Specification

Products	Square And Rectangular Steel Pipe
Material	S235JR, S275JR, S355JR, S460JR, etc.
Surface Treatment	Galvanized Black and color painting Transparent oil,anti-rust oil According to clients requirement
Anti-rusty coating	pre-galvanized (Zinc coating: 40-80g/m²) hot dipped galvanized (Zinc coating: 200-600g/m²)
Size	Square pipe：20x20mm to 500x500mm Rectangular pipe: 20x40mm to 300x500mm
Thickness	1mm-30mm(accroding to the buyer's request)
Length	5.8m, 6m, 2-12m(accroding to the buyer's request)
Standard	ASTM A500, EN10219, EN10210, JIS3466, GB/T 6728
Certificate	CE,BV,SGS,API
Pipe Ends	Plain ends
End Protection	With or Without caps(accroding to the buyer's request)
Packing	Bundle, or with all kinds of colors PVC or as your requirements
Application	Construction / Building materials steel pipe, Structure steel pipe,Greenhouse frame steel pipe,Solar structural components
Brand	GNEE
Place Of Origin	Henan, China
Trade Terms:	FOB/ CIF/ CFR / FCA / EXW
Delivery Time:	15-45 days (based on quantity) after receiving advanced payment by T/T or LC .
Main Market:	Southeast Asia, South Asia, Middle East, Middle&South Americ, Africa and Oceania

S355JR Mechanical properties

Thickness t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation at break or elongation δ %
t＜3	510~680	≥355	Note
3≤t≤16	470~630	≥355	≥22
16＜t≤40	470~630	≥345	≥22
40＜t≤63	470~630	≥335	≥21
63＜t≤80	470~630	≥325	≥20
80＜t≤100	470~630	≥315	≥20
100＜t≤150	450~600	≥295	≥18
150＜t≤200	450~600	≥285	≥17
200＜t≤250	450~600	≥275	≥17

Note:

① nominal thickness t ≤ 1, elongation after break δ ≥ 14
② nominal thickness 1 <t ≤ 1.5, the elongation after break δ ≥ 15
③ nominal thickness 1.5 <t ≤ 2, after break elongation δ ≥ 16
④ nominal thickness 2 <t ≤ 2.5, after break elongation δ ≥ 17
⑤ Nominal thickness 2.5 <t <3, elongation after break δ ≥ 18