20MnNb6 seamless steel pipe/steel tube is mainly used in manufacturing heating pipelines, containers, coal-saving devices, superheaters, arch tube, reheater tube, airway tube etc.
20MnNb6 seamless steel pipe/tube Specification:
OD: 12.7-610mm
Thickness: 2.5-45.0mm
Length: Generally speaking, we suggest 5.8m,6m,11.8m or 12m suitable for 20ft or 40ft containers.
Any other sizes are also available according to your demands.
20MnNb6 seamless steel pipe/tube Chemical composition %
| C | Si | Mn | P | S | Nb | Al | Cu |
| max 0.22 | 0.15 - 0.35 | 1 - 1.5 | max 0.025 | max 0.02 | 0.015 - 0.1 | max 0.06 | max 0.3 |
| Annealing hardness HBS |
Cold pull hardness HBS |
Preheating temperature ℃ |
Quenching temperature ℃ |
Holding time min |
Hardening medium | Temper temperature ℃ |
After tempering hardness ≥HRC |
|
| salt-bath furnace | controlled atmosphere furnace | |||||||
| 235 | 262 | 788 | 1191 | 1204 | 5～15 | air cooling | 522 | 60 |
20MnNb6 seamless steel pipe/tube Test:
Chemical Component Analysis ,Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test etc), Exterior Size Inspection, Nondestructive Test (Ultrasonic flaw detector, Eddy current flaw detector),Hydrostatic Test(The standard pressure is limited to 20,7 MPa (3000psi)),Electro-magnetic inspection to SR1 is carried out on all line pipes.
As a 20MnNb6 seamless steel pipe/tube Manufacturer, Shanghai Katalor Enterprises can supply 20MnNb6 seamless steel pipe/tube stock and processing Services, if you need more information or if you need the 20MnNb6 seamless steel pipe/tube price, you can contact katalor !
