Low Temperature Resistant Seamless Steel Tube Main Type of Steel
16MnD,09MnD,09MnNiD,3.5Ni,A333 Gr.6
Low temperature carbon seamless steel pipe Production Standards
GB150
ASME SA-333/SA333M seamless and welding nominal pipe for low temperature
ASME SA-334/SA334M seamless, welding carbon steel and alloy tube for low temperature
Low Temperature Carbon Steel Pipe Specification and Dimension
External diameter：Φ19-Φ89mm,wall thickness 2-10mm,length 3~22m
Small diameter precision: outer diameter Φ10-180mm, wall thickness 1-15mm, length 3-12.5m
Large diameter thin wall: outer diameter Φ323.8-720mm, wall thickness 6.35-40mm, length 6-14m
Chemical Composition(%)
| Grade | C | Si | Mn | P(max) | S | Ni | Mo | V |
| 16MnDG | 0.12-0.20 | 0.20-0.55 | 1.20-1.60 | 0.025 | 0.025 | - | - | - |
| 10MnDG | <=0.13 | 0.17-0.37 | <=1.35 | 0.025 | 0.025 | - | - | <=0.07 |
| A333 Gr.1 | <=0.30 | - | 0.40-1.06 | 0.025 | 0.025 | - | - | - |
| A333 Gr.3 | <=0.19 | 0.18-0.37 | 0.31-0.64 | 0.025 | 0.025 | 3.18-3.82 | - | <=0.12 |
| A333 Gr.6 | <=0.30 | >=0.10 | 0.29-1.06 | 0.025 | 0.025 | - | - | - |
Mechanical Properties
| Grade | Tensile strength | Lower yield strength(Rcl/Mpa) | Elongation | |
| Rm/Mpa | W.T.<=16mm | W.T.>16mm | A/% | |
| 16MnDG | 490-665 | >=325 | >=315 | >=30 |
| 10MnDG | >=400 | >=240 | >=35 | |
| A333 Gr.1 | >=205 | >=380 | >=35 | |
| A333 Gr.3 | >=450 | >=240 | >=30 | |
| A333 Gr.6 | >=455 | >=250 | >=30 | |
Low temperature carbon seamless steel pipe Product application
The products are widely used in petrochemical, oil refining, electric power, mechanical boilers, and other industries.
