Square hollow section

Overview

Application

It Is Mainly Used for Mechanical structure,general structure.

Main Grade

S235JRH, S275JOH, S275J2H, S355JOH, S355J2H,S355K2H

Chemical Component

Stell grade Type of deoxidationa % by mass, maximum
Steel name Steel nmber C Si Mn P S Nb
S235JRH 1.0039 FF 0.17 — 1.4 0.04 0.04 0.009
S275J0H 1.0149 FF 0.2 — 1.5 0.035 0.035 0.009
S275J2H 1.0138 FF 0.2 — 1.5 0.03 0.03 —
S355J0H 1.0547 FF 0.22 0.55 1.6 0.035 0.035 0.009
S355J2H 1.0576 FF 0.22 0.55 1.6 0.03 0.03 —
S355K2H 1.0512 FF 0.22 0.55 1.6 0.03 0.03 —
a  The deoxidation method is designated as follows: FF: Fully killed steel containing nitrogen binding elements in amounts sufficient to bind available nitrogen (e.g, min. 0,020 % total Al or 0,015 % soluble Al). b  The maximum value for nitrogen does not apply if the chemical composition shows a minimum total Al content of 0.020 % with a minimum AlN ratio of 2:1, or if sufficient other N-binding elements are present. The N-binding elements shall be recorded in the Inspection Document.

Mechanical Property

Steel Grade Minimum yield strength ReH MPa tensile strength RmMPa Minimum elongationAd% Minimum impact energy  KVeJ
Steel name Steel number Specified thickness mm Specified thickness mm Specified thickness mm at test temperature of
≤16 > 16≤ 40 ﹤3 ≥3≤ 40 ≤ 40 -20℃ 0℃ 20℃
S235JRHa 1.0039 235 225 360-510 360-510 24b - - 27
S275J0Hca 1.0149 275 265 430-580 410-560 20c - 27 -
S275J2H 1.0138 27 - -
S355J0Ha 1.0547 355 345 510-680 470-630 20c - 27 -
S355J2H 1.0576 27 - -
S355K2H 1.0512 40f - -
a  The impact properties are verified only when Option 1.3 is specified. b  For thicknesses >3 mm and section sizes D/T < 15 (round) and (B+Hy2T < 12,5 (square and rectangular) the minimum elongation is reduced by 2. For thicknesses ≤ 3 mm the minimum value for elongation is 17 %. c  For section sizes DIT < 15 (circular) and (B+Hy2T < 12,5 (square and rectangular) the minimum elongation is reduced by 2. d  For thicknesses < 3 mm see 9.2.2. e  For impact properties for reduced section test pieces see 6.7.2. f  This value corresponds to 27J at-30 °C (see EN 1993-1-1).

Test Requirement

Elongation, Tensile strength and yield strength; Tensile test in accordance with EN 10002-1; Impact strength; Impact test in accordance with EN 10045-1;Weldability; Chemical analysis in accordance with the methods listed in CR 10261.

Supply Ability

Supply Ability: 2000 Tons Per Month Per Grade Of BSEN10219-1-2006 Steel Pipe

Packaging

In Bundles And In Strong Wooden Box

Delivery

7-14 days if in stock, 30-45 days to produce

Payment

30% depsoit, 70% L/C or B/L copy   or  100% L/C at sight

Product Detail

Seamless Steel Tubes For Mechanical Engineering And Normal Structure

GB/T8162-2008

ASTM A519-2006

BS EN 10210-1-2006

ASTM A53/A53M-2012

GB9948-2006

GB6479-2013

GB/T 17396-2009


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