ASTM A691 GR 3CR steel pipe is an alloy steel pipe manufactured in accordance with ASTM A691 standard, which is mainly applicable to electric fusion welded carbon steel and alloy steel pipes under high temperature and high pressure conditions.
The manufacturing process of ASTM A691 GR 3CR alloy steel pipe produced by GNEE includes steel plate cutting, straight seam welding, heat treatment, non-destructive testing and surface treatment. Strictly guarantee the quality of the product.
ASTM A691 GR 3CR steel pipe can withstand work in high temperature environment, maintain stability, and is not easy to deform or melt. And it has good compressive resistance, suitable for occasions with greater pressure. At the same time, it is easy to process into various shapes to meet different engineering needs.
ASTM A691 Grade 3CR Superheater Pipe
A691 GR 3Cr pipe Chemical Analysis:
|
Designation |
C |
Mn |
P |
S |
Si |
Cr |
Mo |
|
ASTM A691 3Cr |
0.15 |
0.3-0.6 |
0.035 |
0.035 |
0.5 |
2.75 - 3.25 |
0.9 - 1.1 |
A691 Grade 3Cr Alloy Tube Physical Property:
|
Designation |
Tensile strength ksi [MPa] |
Yield strength, min ksi [MPa] |
Elongation in 8 in. [200mm], min % |
|
ASTM A691 Grade 3Cr |
74700 - 100000 [515 - 690] |
45000 [310] |
18 |
A691 Grade 3Cr alloy welded pipe heat treatment
|
Materjal / Grad |
Post ta 'Trattament ta' Sħana |
Normalizzar |
Jaqtgħu |
It-tempra |
|
Firxa tat-Temperatura (℃) |
Temperatura, Max (℃) |
Temperatura, Min (℃) |
||
|
A691 3Cr |
590-705 |
1010 |
925 |
620-745 |
ASME SA691 Grade 3CR EFW Pipe Specifications
ASTM A691 Gr 3CR EFW Pipe Grade: 3CR
Type of steel: 3 % chromium, 1 % molybdenum steel
ASTM Specification no: A 387/A 387M
ASTM Specification Grade: 21
Advantages of Choosing GNEE A691 tubings
GNEE can provide seamless/ ERW/ welded/ fabricated etc. sizes. Shapes are round, square, rectangular, hydraulic etc.
If you have any questions about product information or ordering, please feel free to contact us for more details!sales@gneetube.com
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FAQ
Q: Do you have quality control system?
A: Yes, we have our own quality control laboratory.Third party testing servicesare also available.
Q. Can you provide samples?
A.We can provide them for free, you need to bear the shipping cost.
Q.What is the delivery time?
A.Within 7-15 days after we confirm your request.
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