Various Sizes of Welded Black Annealed Steel Square Tube
Trademark: Tianyingtai(TYT)
Transport Package: Standard Seaworthy Packing
Specification: 7303009000
Origin: Tianjin, China
HS Code: 7303009000
Trademark: Tianyingtai(TYT)
Transport Package: Standard Seaworthy Packing
Specification: 7303009000
Origin: Tianjin, China
HS Code: 7303009000
1. Product Basic Info:| Shape: | round/sqaure/rectangular/oval  or other special section tube |
| OD: | 20-219.1mm, WT: 0.8-12mm       |
| Size: | 10*10-400*400mm, WT:0.8-12mm |
| Â | 10*20-400*600mm, WT:0.8-12mm |
| Length: | 0.3-12m     (or as customers' request) |
| Surface: | Carbon/Pre-galvanized/Hot Dip Galvanized/Oiled/Painted/Bared , can be dealed as customers' need |
| Zinc Coating: | 50-150g/m2 for Pre- galvanized, more than 200g/m2 for hot dip galvanized or as clients' need |
| Material: | Q195/Q215/Q235/Q345/Q195-Q235 ABCD |
| Standard: | ASTM-A53Â Â Â /BS 1387-1985/Â Â Â GB/T 3091-2001 for round pipe |
| Â | ASTM A500Â /GB/T3094Â Â Â for square/rectangular pipe |
| Manufacturing Technique | Weld/Seamless/Â Â Â Â Â ERW/ SSAW/ LSAW /Â Â Â Â Â Cold Drawn/ Hot Drawn |
| Ends: | Plain /Beveled/ Threaded with sockets coupling and plastic caps/ Necking down/ Expanding neck/ Punching holes |
| Grade | Chemical Composition | Mechanical Properties | ||||||
| C | Mn | Si | S | P | Yield | Tensile | Elongati | |
| Strength Mpa | Strenth Mpa | -on % | ||||||
| Q195 | 0.06-0.12 | 0.25-0.50 | ≤0.30 | ≤0.045 | ≤0.05 | ≥195 | 315-430 | ≥33 |
| Q215 | 0.09-0.15 | 0.25-0.55 | ≤0.30 | ≤0.05 | ≤0.045 | ≥217 | 335-450 | ≥27 |
| Q235 | 0.12-0.20 | 0.30-0.67 | ≤0.30 | ≤0.045 | ≤0.04 | ≥235 | 375-500 | ≥26 |
| Q345 | ≤0.20 | 1.00-1.60 | ≤0.55 | ≤0.04 | ≤0.04 | ≥345 | 470-630 | ≥22 |
1. Construction projects, civil chimneys, central air conditioning pipe,
2. Fences, threading pipe, greenhouse canopy (trellis tube),
3. Roller shutters doors, light steel keel,
4. Supporting tube, furniture, sports equipment, tents, guardrail etc.
4. Packaging & Shipping
Port: TIANJIN
Payment Terms:Â L/C,T/T
Delivery:Â 15-45 days after deposit or according to customers' quantity.
Packing: 1.Big OD: in bulk  2.Small OD: packed by steel strips  3.woven cloth with 7 slats
               4.plastic bags  5.as per customer's optionÂ
Company Profile
Quality Inspection
Our services1. Customization is avaliable according to requirements.
2. All production processes are strictly under ISO 9001-2008.
3. Free sample ( not contain the cost of freight).
4. Third party inspection (SGS,BV...) is welcomed.
5. Visit factory any time.
6. FOB/ CIF/ CFR/ ERW is accepted.Â
 1. Product Basic Info:
| Shape: | round/sqaure/rectangular/oval  or other special section tube |
| OD: | 20-219.1mm, WT: 0.8-12mm       |
| Size: | 10*10-400*400mm, WT:0.8-12mm |
| Â | 10*20-400*600mm, WT:0.8-12mm |
| Length: | 0.3-12m     (or as customers' request) |
| Surface: | Carbon/Pre-galvanized/Hot Dip Galvanized/Oiled/Painted/Bared , can be dealed as customers' need |
| Zinc Coating: | 50-150g/m2 for Pre- galvanized, more than 200g/m2 for hot dip galvanized or as clients' need |
| Material: | Q195/Q215/Q235/Q345/Q195-Q235 ABCD |
| Standard: | ASTM-A53Â Â Â /BS 1387-1985/Â Â Â GB/T 3091-2001 for round pipe |
| Â | ASTM A500Â /GB/T3094Â Â Â for square/rectangular pipe |
| Manufacturing Technique | Weld/Seamless/Â Â Â Â Â ERW/ SSAW/ LSAW /Â Â Â Â Â Cold Drawn/ Hot Drawn |
| Ends: | Plain /Beveled/ Threaded with sockets coupling and plastic caps/ Necking down/ Expanding neck/ Punching holes |
| Grade | Chemical Composition | Mechanical Properties | ||||||
| C | Mn | Si | S | P | Yield | Tensile | Elongati | |
| Strength Mpa | Strenth Mpa | -on % | ||||||
| Q195 | 0.06-0.12 | 0.25-0.50 | ≤0.30 | ≤0.045 | ≤0.05 | ≥195 | 315-430 | ≥33 |
| Q215 | 0.09-0.15 | 0.25-0.55 | ≤0.30 | ≤0.05 | ≤0.045 | ≥217 | 335-450 | ≥27 |
| Q235 | 0.12-0.20 | 0.30-0.67 | ≤0.30 | ≤0.045 | ≤0.04 | ≥235 | 375-500 | ≥26 |
| Q345 | ≤0.20 | 1.00-1.60 | ≤0.55 | ≤0.04 | ≤0.04 | ≥345 | 470-630 | ≥22 |
1. Construction projects, civil chimneys, central air conditioning pipe,
2. Fences, threading pipe, greenhouse canopy (trellis tube),
3. Roller shutters doors, light steel keel,
4. Supporting tube, furniture, sports equipment, tents, guardrail etc.
4. Packaging & Shipping
Port: TIANJIN
Payment Terms:Â L/C,T/T
Delivery:Â 15-45 days after deposit or according to customers' quantity.
Packing: 1.Big OD: in bulk  2.Small OD: packed by steel strips  3.woven cloth with 7 slats
               4.plastic bags  5.as per customer's optionÂ
Company Profile
Quality Inspection
Our services1. Customization is avaliable according to requirements.
2. All production processes are strictly under ISO 9001-2008.
3. Free sample ( not contain the cost of freight).
4. Third party inspection (SGS,BV...) is welcomed.
5. Visit factory any time.
6. FOB/ CIF/ CFR/ ERW is accepted.Â
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