Top-Rated SB-168, B 168, 5870 Stainless Steel Tube Supplier in China
The SB-168, B 168, 5870 stainless steel seamless tube combines exceptional strength with outstanding corrosion resistance. Engineered for durability, it is ideal for industrial applications like aerospace, chemical processing, and marine engineering.

SB-168, B 168, 5870 Stainless Steel Seamless Tube - Detailed Specifications
Specification | Details |
---|---|
Material Grade | SB-168, B 168, 5870 |
Outer Diameter (OD) | 8mm - 300mm |
Wall Thickness | 1.5mm - 25mm |
Length | Up to 12 meters (customizable) |
Standards | ASTM B168, ASME SB168 |
Surface Finish | Polished, pickled, or custom |
Manufacturing Process | Seamless |
Tolerance | ±0.05mm (OD), ±0.03mm (thickness) |
Maximum Pressure | up to 5500 PSI |
Operating Temperature | -30°C to 550°C |
Understanding SB-168, B 168, 5870
What It Is:
These standards and specifications work together to ensure a product that is both materially superior and hygienically sound.
- SB-168: This is the master specification for nickel alloy plates, dictating unique chemical compositions, including high levels of nickel and other elements like chromium and molybdenum.
- B 168: This standard governs the manufacturing process, surface finish (Ra), cleanliness, and testing required to produce a contamination-free final product.
- A Certified Combination: We start with fully certified SB-168 and B 168 materials to create a seamless tube that meets or exceeds all 5870 stainless steel requirements.
Why It Is Your Core Focus:
Our strict adherence to these standards promises a robust, reliable, and pure solution for your critical systems.
- It guarantees superior performance against moderately to highly corrosive media, where standard alloys might be inadequate, especially in sulfuric acid environments.
- It ensures an ultra-smooth, crevice-free internal surface that minimizes bio-burden and allows for effective, repeatable Clean-in-Place (CIP) cycles.
- This dual certification simplifies your validation process with fully traceable materials and comprehensive MTCs, essential for regulated industries.
SB-168, B 168, 5870 Stainless Steel Material Properties
Element | Composition (%) |
---|---|
Chromium (Cr) | 18.0 - 24.0 |
Nickel (Ni) | 62.0 min |
Molybdenum (Mo) | 3.5 - 5.5 |
Iron (Fe) | Balance |
Carbon (C) | 0.08 max |
Manganese (Mn) | 0.5 max |
Silicon (Si) | 0.5 max |
Phosphorus (P) | 0.03 max |
Sulfur (S) | 0.02 max |
Property | Value | Unit |
---|---|---|
Tensile Strength | 700 min | MPa |
Yield Strength (0.2% OS) | 280 min | MPa |
Elongation | 30 min | % |
Versatile Applications of SB-168, B 168, 5870 Stainless Steel Seamless Tube
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Aerospace: Engine components, structural supports in high-stress areas.
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Chemical Processing: Reactor vessels, corrosive chemical transport systems.
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Oil & Gas: High-pressure pipelines, offshore heat exchangers.
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Marine Applications: Seawater filtration, desalination infrastructure piping.
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Power Generation: Steam turbines, high-temperature boiler systems in plants.
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Pharmaceuticals: Hygienic tubing for sterile materials, production systems.

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Experience unparalleled reliability with SB-168, B 168, 5870 stainless steel seamless tube. Built for extreme conditions, it offers unmatched durability and corrosion resistance. Contact us for a quote now!