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Decoration Square Tube
1. STANDARD:
GB/T3094-2000, GB/T6728-2002, ASTM A500, JIS G 3466, DIN EN 10210, GB/T178-2005
2. MATERIAL:
Q195, Q215, Q235, Q275, Q345, 20#, 45#, Stainless steel, Seamless steel, Alloy steel.
3. SURFACE:
Bared, Galvanized, Oiled, Color Paint, 3PE; Or Other Anti-corrosive Treatment.
4. TECHINQUE:
Hot rolled, Cold rolled, ERW, High-frequency welded.
5. APPLICATION:
(1).Machinery manufacture: glass machinery, agricultural machinery, textile machinery, papermaking machinery, food machinery, electrical equipment, sanitation equipment.
(2).Roads and Bridges: railway, aviation, expressway, overpass, road fence, traffic signs.
(3).Construction engineering: steel structure construction, sports venue, three-dimensional garage, exhibition hall.
(4).Decoration: wrought iron doors and windows, outdoor advertising, pavilion and vestibule, glass curtain wall.
(5).Transportation: automobile manufacture, ship manufacture, container, tricycle, tower crane.
6. SUFACE ALLOWED DEVIATION:
Assessment Criteria |
First Grade |
Second Grade |
||
Wall thickness/t |
4mm≤t≤10mm ±8%t |
4mm≤t≤10mm ±8%t |
||
10mm≤t≤22mm ±6%t |
10mm≤t≤22mm ±6%t |
|||
Suitable for flat parts |
Suitable for flat parts |
|||
Right Angle |
90°±1.0° |
90°±1.5° |
||
Corner radius of circular arc |
t≤6mm(1.5-2.5)t |
|||
6mm≤t≤10mm(2-3)t | ||||
T>10mm(2.5-3.5)t | ||||
Concave and convex degree |
≤5% side length |
≤6% side length |
||
Bending degree |
≤1.5mm/m, total bending degree ≤0.15% specified length |
≤2mm/m, total bending degree ≤0.2% specified length |
||
Distortion degree |
2mm+0.5mm/m |
- |
||
Scale accuracy |
Ordinary precision 0- +50mm |
Ordinary precision 0- +70mm |
||
Fine scale 0- +5mm |
Fine scale 0- +15mm |
|||
Cutting quality |
100mm≤side length≤300mm |
100mm≤side length≤300mm |
||
Cutting slope≤3mm |
Cutting slope≤4mm |
|||
300mm<side length≤500mm |
300mm<side length≤550mm |
|||
Cutting slope≤3mm |
Cutting slope≤6mm |
|||
End without cutting burr |
End with few cutting burr |
|||
7. MECHANICAL PROPERTY:
Yield Strength Grade |
Wall thickness (mm) |
Yield strength (Mpa) |
Tensile strength (Mpa) |
Elongation% |
Impact work (J) |
235 |
4-12>12-22 |
≥235 |
≥375 |
≥23 |
≥27 |
345 |
4-12>12-22 |
≥345 |
≥470 |
≥21 |
≥27 |
390 |
4-12>12-22 |
≥390 |
≥490 |
≥19 |
≥27 |
8.What advantage do we have?
- Our factory established in 1997, we have 16 years experience in this area.
- We engaged in research square and rectangular steel tube at the beginning of company established, now our technology is far ahead.
- We have a leading international, domestic origination of production units.
- We have passed the standards of ASTM A500, JIS G 3466, DIN EN10210, GB/T178-2005, GB/T 3094-2000 and GB/T6728-2002.
- Our products in different sizes, and different thickness (1.0mm-32mm), can satisfy your desire a station buy need.
- Perfect after-sale service to solve your worries.
1.PACKING WITH BUNDLES:
2.PACKING WITH ANTI-WATER BAGS:
3.GOODS IN TRUCK:
4. GOODS IN CONTAINER:
5.GOODS IN BULK SHIP:
How to contact me?
Email: steelpipeexport (at)
WhatsApp:18905315739
Wechat:554717325
QQ:554717325
Send Inquiry to This Supplier
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