BS1387 Black Square Steel Pipe Carbon Material Hot Rolled
1)Outer Diameter: 21.3-219mm
2)Wall Thickness: 0.8-12mm
3)Spe.: Q195, Q215, Q235, Q345
4)Standard: ASTM-A53A, BS1387-1985, BG/T3091-2001
5)Steel pipe:
A)GTC(galvanized thread and coupling)steel pipe: DN15-DN200(NB1/2''-NB8'')
B)GPE(galvanized plan end)steel pipe: DN15-DN200
C)Grooved steel pipe: DN15-DN200(NB1/2''-NB8'')
D)Used for low pressure liquid apply such as water, gas and oil e)The product apply to various anticourrosive pipes
6)Galvanized square pipe also provided.
| Outer Diameter. |
W. T. |
| 1/8" |
10.3mm |
0.6mm-1.0mm |
| 1/2" |
21.3mm |
0.6mm-1.0mm |
| 3/4" |
26.7mm |
1.0mm-3.0mm |
| 1" |
33.4mm |
1.0mm-3.0mm |
| 1 1/4" |
42.2mm |
1.0mm-3.2mm |
| 1 1/2" |
48.3mm |
1.0mm-4.0mm |
| 2" |
60.3mm |
1.5mm-4.0mm |
| 2 1/2" |
76.1mm |
1.5mm-9.5mm |
| 3" |
88.9mm |
1.5mm-9.5mm |
| 4" |
114.3mm |
2.0mm-14mm |
| 5" |
141.3mm |
3mm-14mm |
| 6" |
168.3mm |
3mm-15mm |
| 8" |
219.1mm |
3.2mm-15mm |
2.Product Chemical Composition & Mechanical Properties :
| 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 |
Now we are in the position to supply the tube as follows:
1. ERW Galv. Welded steel tube according to BS1387 or ASTM A53
2. Hot-dipped Galv. Scaffolding tube according to BS1139
3. Carbon seamless steel tube according to ASTM A53/A106/API 5L Gr. B
4. Seamless welded steel tube
5. Welded furniture tube with black surface or white surface condition
Audited Supplier 
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