 
| 
Product Name
 | 
Carbon Steel Pipe
 |  | 
| 
Wall Thicnkess
 | 
1mm-15mm
 | |
| 
Length
 | 
3m-12m, random or fixed, as the clients' requests
 | |
| 
Usage
 | 
Boiler tube, transport water or fluid, shipping
 building | |
| 
Tolerance
 | 
OD:+/-0.02mm
 WT:+/-0.12mm | |
| 
Property
 | 
Tensile strength >415MPa
 Yield strength >240MPa | |
| 
Surface
 | 
Black painted,PE painted,galvanized,color coated,anti-rust varnished,anti-rust oiled,etc
 | |
| 
End
 | 
Beveled end, plain end
 | |
| 
Packing
 | 
In bundle with strip fixed
 Or as customer's special requirement | |
| 
Delivery
 | 
Within 10-15 days if pipe in stock
 Within 20-30 days if pipe need to be produced | |
| 
Shape
 | 
Steel boiler tube / seamless steel pipe
 welded steel tube/ steel rectangular tube steel square tube/ steel round tube alloy steel tube/ carbon steel tube galvanized steel tube | 
 
 
 
 
 
 
 
| Steel tube type | Steel pipe size mm | Allowable deviation | |||
| Regular grade | senior | ||||
| Hot rolled tube | D | ≤ 159 | ± 1.0% ( The minimum value for ± 0.5mm ) | ± 0.75% ( The minimum value for ± 0.3mm ) | |
| > 159 | ± 1.0% | ± 0.90% | |||
| S | < 3.5 | + 15% ( The minimum value for + 0.48mm - 10% - 0.32mm ) | ± 10% ( The minimum value for ± 0.2mm ) | ||
| 3.5~20 | +15%-10% | ±10% | |||
| > 20 | D < 219 | ± 10% | ±7.5% | ||
| D ≥ 219 | +12.5%-10.0% | ±10% | |||
| Cold drawn tube | D | ≤ 30 | ± 0.20mm | ± 0.15mm | |
| > 30~50 | ± 0.30mm | ± 0.25mm | |||
| > 50 | ±0.8% | ±0.6% | |||
| S | 2~3 | +12%-10% | ±10% | ||
| > 3 | ±10% | ±7.5% | |||
| Grade | Chemical composition, % | ||||||||||
| C | Si | Mn | Cr | Mo | V | W | Nb | Ni | P | S | |
| 10 | 0.07 ~0.14 | 0.17 ~0.37 | 0.35 ~0.65 | - | - | - | - | - | - | ≤0.030 | ≤0.030 | 
| 20 | 0.17 ~0.24 | 0.17 ~0.37 | 0.35 ~0.65 | - | - | - | - | - | - | ≤0.030 | ≤0.030 | 
| 16Mn | 0.12 ~0.20 | 0.20 ~0.60 | 1.20 ~1.60 | - | - | - | - | - | - | ≤0.030 | ≤0.030 | 
| 15MnV | 0.12 ~0.18 | 0.20 ~0.60 | 1.20 ~1.60 | - | - | 0.04 ~0.12 | - | - | - | ≤0.030 | ≤0.030 | 
| 10MoWVNb | 0.07 ~0.13 | 0.50 ~0.80 | 0.50 ~0.80 | - | 0.60 ~0.90 | 0.30 ~0.50 | 0.50 ~0.90 | 0.06 ~0.12 | - | ≤0.030 | ≤0.030 | 
| 12CrMo | 0.08 ~0.15 | 0.17 ~0.37 | 0.40 ~0.70 | 0.40 ~0.70 | 0.40 ~0.55 | ≤0.030 | ≤0.030 | ||||
| 15CrMo | 0.12 ~0.18 | 0.17 ~0.37 | 0.40 ~0.70 | 0.80 ~1.10 | 0.40 ~0.55 | - | - | - | - | ≤0.030 | ≤0.030 | 
| 1Cr5Mo | ≤ 0.15 | ≤ 0.50 | ≤ 0.60 | 4.00 ~6.00 | 0.40 ~0.60 | - | - | - | ≤ 0.60 | ≤0.030 | ≤0.030 | 
| 12Cr2Mo | 0.08 ~0.15 | ≤ 0.50 | 0.40 ~0.70 | 2.0 ~2.50 | 0.90 ~1.20 | - | - | - | - | ≤0.030 | ≤0.030 | 
| 12SiMoVNb | 0.08 ~0.14 | 0.50 ~0.80 | 0.60 ~0.90 | - | 0.90 ~1.10 | 0.30 ~0.50 | - | 0.04 ~0.08 | - | ≤0.030 | ≤0.030 | 
| Grade | Tensile strength, Mpa | Yield point, Mpa | Elongation min, % | 
| 10 | 335~490 | 205 | 24 | 
| 20 | 410~550 | 245 | 24 | 
| 16Mn | 490~670 | 320 | 21 | 
| 15MnV | 510~690 | 350 | 19 | 
| 12CrMo | 410~560 | 205 | 21 | 
| 15CrMo | 440~640 | 235 | 21 | 
 
 
