What is SUS301 stainless steel pipe material?

SUS301 stainless steel pipe is a high-strength austenitic stainless steel product made from SUS301 material, the Japanese JIS standard equivalent of AISI 301 / EN 1.4310. It is designed for excellent mechanical performance under cold working conditions, offering superior yield strength and good resistance to moderate corrosion.

If you're sourcing thin-walled, flexible stainless steel tubes for springs, structural reinforcements, or high-fatigue environments, SUS301 pipe may be your ideal solution.

 

What is SUS301 stainless steel pipe material?

SUS301 stainless steel pipe is made from a high-strength austenitic stainless steel under the Japanese JIS standard. SUS301 (equivalent to AISI 301 and EN 1.4310 / X5CrNi18-10) contains lower nickel and higher carbon than 304, enabling excellent cold work hardening. It's commonly used in applications that require high mechanical strength, spring action, and moderate corrosion resistance.

 

What is the ASTM standard for stainless steel 301?

ASTM A240 – for flat-rolled sheet, strip, and plate

ASTM A313 – for spring wire

ASTM A554 – for welded mechanical tubing

ASTM A213 / A269 – used as reference standards for seamless or welded tubing applications

For piping specifically, ASTM A269 and A554 are often referenced in industrial usage of 301 tubing.

SUS301 Pipe Chemical Composition (Typical)

Element	Content (%)
Carbon (C)	≤ 0.15
Manganese (Mn)	≤ 2.00
Silicon (Si)	≤ 1.00
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.030
Chromium (Cr)	16.0 – 18.0
Nickel (Ni)	6.0 – 8.0
Nitrogen (N)	≤ 0.10

AISI 301 stainless steel pipe Mechanical Properties (Cold Rolled)

Condition	Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)
Annealed (soft)	~205	520–680	≥ 40
1/2 Hard	≥ 520	950–1100	~20–25
Full Hard	≥ 700	1200–1500	< 10

 

Is SUS301 magnetic?

SUS301 is non-magnetic in the annealed (soft) condition, but it becomes magnetic after cold working (such as rolling, drawing, or forming). This makes it suitable for spring applications where magnetic detection or performance under magnetic fields is required.

 

Looking for SUS301 Stainless Steel Tubing?

we manufacture and export cold-rolled and welded SUS301 stainless pipes tailored to your strength, hardness, and surface finish requirements. Whether for spring tubes, automotive frames, or technical fasteners, we provide tight tolerances, custom lengths, and full quality certifications.

👉 Request a quote or sample now for your next high-performance stainless steel project.

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SUS301 Stainless Pipe Supply Options

Form	Size Range
Seamless Tube	OD 6–76 mm / WT 0.5–2.5 mm
Welded Tube (TIG)	OD 10–100 mm / WT 0.4–3.0 mm
Coil Tubing	Customized per project
Finish	BA (Bright Annealed), Pickled, EP