A691 91CR Welded Boiler Tube
Our A691 91CR Chrome Molybdenum Steel Pipe is known for its high tensile strength and corrosion resistance, ensuring service life even in the most demanding conditions.
A691 Grade 91 Alloy Boiler Tube is an electric fusion welded steel pipe for high temperature and high pressure applications. As a type of chrome alloy tube, it has strong resistance to crevice and pitting corrosion. And A691 Grade 91 High Temperature Boiler Tube has good weldability and allows simple welding using common welding techniques.
A691 Grade 91 Alloy Steel Pressure Boiler Tube can withstand temperature changes up to 600°F, so it can be used in the automotive industry, petrochemical applications, refineries, and boilers
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Alloy Steel Grade.91 ERW Pipe Chemical Composition
| Grade | C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % | V,% |
| 9 CR | 0.08-0.12 | 0.30-0.60 | 0.020 | 0.010 | 0.20-0.50 | 8.00-9.50 | 0.85-1.05 | 0.18-0.25 |
Mechanical Properties of A691 Alloy Steel Grade.91 Rectangular Pipes
| Grade | Tensile Strength, MPa | Yield Strength, MPa | Elongation, % |
| Class 2 | 585 - 760 | 415 min | 18 |
A691 91CR straight seam alloy steel tube

Advantages of Choosing GNEE
GNEE pipes and tubes have a wide range of applications in many market sectors, including the oil and gas, petrochemical and construction industries. And we can offer different properties for different purposes (e.g. corrosion protection).
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FAQ
Q: What product information do I need to provide?
A: You need to provide grade, wall thickness, width and quantity you need to buy.
Q: What are the shipping ports?
A: You can choose other ports according to your needs.
Q: About the product price?
A: Due to the cyclical changes in raw material prices, prices vary from period to period.
Q: What certifications do your products have?
A: We have ISO 9001, SGS, EWC and other certifications.
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