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316L Seamless Straight Tube

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316L Seamless Straight Tube

Chemical Composition (wt%)

C: ≤0.03, Cr: 16.0–18.5, Ni: 10.0–14.0, Mo: 2.0–3.0, Mn: ≤2.0, Si: ≤1.0, Fe: balance

Mechanical Properties (Solution Annealed, Room Temp)

Tensile Strength ≥485 MPa, Yield Strength ≥170 MPa, Elongation ≥40%, Hardness ≤200 HB

Heat Treatment Guidance

Solution annealed at 1020–1080℃, rapid cooling. Non-hardenable.

Corrosion Performance

PREN ~25. Suitable for mild chloride and general corrosion. Not recommended for high chloride or sour brine service.



PRODUCT DESCRIPTION

Product Introduction

316L is the most popular low‑carbon molybdenum‑bearing austenitic stainless steel. Molybdenum improves its pitting resistance compared with 304L. Low carbon minimizes intergranular corrosion risk after welding. It is supplied in straight lengths for heat exchangers, piping and general instrument service.

Key Advantages

• Good resistance to mild chloride, atmospheric and organic acid corrosion

• Low carbon, no sensitization risk after welding

• Excellent weldability and formability

• Non‑magnetic after solution annealing

• Cost-effective general corrosion grade

Typical Applications

Heat exchanger straight tubes, general chemical process piping, water treatment piping, food & pharmaceutical equipment, low-chloride instrument straight tubing.

Specification Table

表格







Item

Parameter

Material Grade

316L / UNS S31603

Executive Standard

ASTM A312

Outer Diameter

6 mm ~ 219 mm, custom OD available

Wall Thickness

1.0 mm ~ 12.7 mm, customized wall thickness

Length

Fixed straight length: 3m / 4m / 5m / 6m, custom length available

Working Pressure

Subject to OD & wall thickness calculation

Working Temperature

-200℃ ~ 450℃

Form

Straight tube (non-coiled)

Delivery & Surface Condition

Cold drawn + solution annealed, pickled & passivated. Ends deburred, protective caps on both ends.

Certification & Compliance

Full heat traceability, 3.1 /3.2 MTC available. Eddy current, hydrostatic test can be arranged. Third-party inspection acceptable.

Customization

Custom OD, wall thickness, fixed length, end finishing and export packing are supported.



CERTIFICATE
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FAQ

Q: Can you provide sample ?

A: We can provide the samll samples in stock for free, as long as you contact us.Customized samples will take about 5-7days.

 

Q: How do you control quality ?

A: Mill Test Certification is supplied with shipment, Third Party Inspection is available. and we also get ISO,SGS,Alibaba Verified.

 

Q: Can you do OEM for me ?

A: We accept all OEM orders,just contact us and give me your design.we will offer you a reasonable price and make samples for you ASAP.

 

Q: Will you delivery the goods on time?

A: Yes,we promise to provide best quality products and delivery on time .Honesty is our company's tenet.

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