What is 1.4845 2B finish stainless steel pipe?
What is 1.4845 2B finish stainless steel pipe?
1.4845 2B finish stainless steel pipe is a cold-rolled, bright annealed, and lightly pickled pipe made from 1.4845-grade stainless steel (equivalent to 321 stainless steel with 17.0–19.0% Cr, 9.0–12.0% Ni, and 0.7% max C), featuring a smooth surface with Ra≤0.8μm (2B standard), corrosion resistance (especially against intergranular corrosion after welding), and dimensional compliance with ASTM A312/A213/EN 10216-5 standards, suitable for high-temperature and corrosive environments such as chemical processing and power plants.
Advantages of 1.4845 2B Finish Stainless Steel Pipe
Corrosion Resistance
1.4845 stainless steel (equivalent to 321) contains 17.0-19.0% chromium (Cr) and 9.0-12.0% nickel (Ni), forming a stable, passive oxide layer that resists oxidation and general corrosion.
High-Temperature Stability
1.4845 stainless steel tubing maintains its mechanical properties and oxidation resistance at temperatures up to 900°C (with short-term service temperatures up to 1000°C), making it an ideal choice for heat exchangers, boiler piping, and exhaust systems in the petrochemical, power generation, and furnace industries.
Surface Treatment
1.4845 2B finish stainless steel tubing offers a cleaner appearance than 2D (dull finish) and better formability/weldability than mirror finishes (such as Grade 8), making it suitable for both structural and aesthetic applications.
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chemical composition of grade 1.4845 stainless steel. |
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Fe |
Cr |
Ni |
Mn |
Si |
C |
P |
S |
|
54 |
24-26 |
19-22 |
2 |
1.5 |
0.08 |
0.045 |
0.03 |
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Mechanical properties of grade 1.4845 stainless steel |
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Tensile strength |
Yield strength |
Elongation |
Hardness |
Reduction |
|
515 Mpa |
205Mpa |
40% |
95 |
50% |
Application of SS 1.4845 2B pipe
The higher alloyed stainless steels generally have excellent strength at elevated temperatures along with outstanding resistance to creep deformation and environmental attack. Therefore, Alloy 310 is used widely in industries such as heat treatment and chemical processing. Some examples include:
Furnace Parts
Oil Burner Parts
Heat Exchangers
Welding Filler Wire and Electrodes
Annealing Covers
Combustion Tubes
Fire Box Sheets
In addition, we offer a variety of surface treatments.
If you have a project need for 1.4845 stainless steel bright annealed tubing, we welcome your order. GNEE has a large inventory of popular products for you to choose from. They can be processed into a variety of practical product forms, including seamless and welded. For detailed chemical composition and free samples, please contact our factory today. We offer competitive pricing and excellent service.
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