ERW Carbon Steel Square Hollow Sections for Structure

Basic Info
  • Standard: GB, ASTM, DIN, JIS, AISI, BS

  • Forming: Cold Drawn Steel

  • Member: Steel Column

  • Carbon Structural Steel: Q235

  • Application: Steel Workshop, Steel Structure Platform, Steel Fabricated House, Structural Roofing, Steel Walkway and Floor, Steel Structure Bridge

  • International Standard: ISO9001

  • Commodity: ERW Carbon Steel Square Hollow Sections for Struct

  • Surface: Oil Painted

  • Origin: China

  • Type: Cold Forming Sectional Steel

  • Connection Form: Welded Connection

  • Type of Steel For Building Structure: Cold Forming Sectional Steel

  • Residential Wall Structure: Connector

  • Product Category: Metallurgy, Minerial&Energy

  • Std: BS/ASTM/JIS/DIN

  • Specification: BS JIS DIN EN ASTM

  • HS Code: 73066100


Product Description


1. Specifications:

Thickness: 0.5-12mm
Size(Dia. ): 15*15--400*400mm, 10*20-300*500mm
Material: Q195 Q235
Certifactions: BV SGS


2. Mild steel Black Square Tube and Pipe application: Construction material, curtain wall, traffic, Fluid pipe, structure pipe, gas pipe, hydraulic pipe, oil pipe, drill pipe, boiler pipe

3. Pictures show of mild steel Black Square Tube and Pipe



Mechanical character & Chemical element of normal material:

Material
Chemical
Composition
(%)
Q195CMnSiSP
0.06-0.120.25-0.50≤0.30≤0.050≤0.045
Tensile strength: 315-430(Mpa)
Yield strength:195(Mpa)
Elongation:33
Q235CMnSiSP
0.12-2.00.3-0.70≤0.30≤0.045≤0.045
Tensile strength: 375-460(Mpa)
Yield strength:235(Mpa)
Elongation:26
Q345CMnSiSPV
≤0.20≤1.70≤0.55≤0.040≤0.0400.02-0.15
Tensile strength: 470-630(Mpa)
Yield strength:345(Mpa)
Elongation:21

Normal dimension of steel pipe
Square (SHS)Rectangular(RHS)Circle (CHS)
Out dia.
(mm)
Wall thickness
(mm)
Out dia.
(mm)
Wall thickness
(mm)
Out dia.
(mm)
Wall thickness
(mm)
10x100.5-1.010x200.6-1.0100.5-1.0
12x120.5-1.012x250.6-1.0120.6-1.0
16x160.6-1.220x400.6-1.6160.6-1.0
19x190.6-1.525x500.8-2.75190.6-1.5
20x200.6-1.630x500.8-3.0200.6-1.5
25x250.8-2.7530x600.8-3.021.50.6-1.5
30x300.8-2.7540x601.0-4.0250.8-2.75
32x321.0-3.040x801.5-4.0270.8-2.75
38x381.0-3.050x751.5-4.0320.8-3.0
40x401.0-3.550x1002.0-6.038.11.0-3.0
50x501.0-5.050x1252.0-6.042.51.0-3.5
60x601.0-6.050x1503.0-6.048.41.0-5.0
63.5x63.51.0-6.060x801.5-6.050.81.0-5.0
70x701.5-6.060x1002.0-6.063.51.0-6.0
75x751.5-6.060x1202.0-6.0681.2-6.0
80x802.0-6.075x1002.0-6.0701.2-6.0
90x902.0-6.075x1252.0-6.0731.4-6.0
100x1002.3-6.075x1503.0-6.0761.4-6.0
120x1203.0-6.080x1202.0-6.0802.0-6.0
125x1253.0-6.080x1603.0-6.0892.0-6.0
150x1503.5-8.0100x1504.0-12902.0-6.0
200x2004.0-12100x1754.0-12952.0-6.0
250x2505.0-12100x2004.0-121002.3-6.0
300x3005.0-14150x2004.0-121022.3-6.0
350x3506.0-14150x2504.0-141082.3-6.0
400x4006.0-18150x3005.0-161102.3-6.0
500x5008.0-20200x3005.0-161142.3-6.0
600x6008.0-20200x4006.0-161333.0-6.0


300x5006.0-201403.0-8.0


400x6008.0-201523.0-8.0




1653.0-8.0




1903.5-12




2004.0-12




2194.0-12




2734.0-14




3255.0-16




3775.0-16




4266.0-20