316 Stainless Steel Strip

316 stainless steel strip is the gold standard for applications requiring exceptional corrosion resistance, particularly in chloride-rich or acidic environments. With 16–18% chromium, 10–14% nickel, and 2–3% molybdenum, it outperforms 304 in marine, chemical, and biomedical settings. Ideal for offshore rigs, pharmaceutical equipment, and coastal architecture, this austenitic alloy combines durability, hygiene compliance, and thermal stability. Available in cold-rolled, annealed, or polished finishes, it meets ASTM, EN, and ISO standards for global industrial reliability.

International Designations & Standards

Region	Standard	Grade
USA	ASTM A240/A480	UNS S31600
Europe	EN 1.4401	X5CrNiMo17-12-2
Japan	JIS SUS316	-
China	GB 06Cr17Ni12Mo2	-

Chemical Composition (Weight %)

Element	Cr	Ni	Mo	C	Mn	Si	P	S
Content	16–18%	10–14%	2–3%	≤0.08%	≤2.0%	≤1.0%	≤0.045%	≤0.03%

Key Properties

Corrosion Resistance:

Resists pitting/crevice corrosion in seawater (PREN: 26–30 vs. 304's 18–20).

Immune to sulfuric acid (≤10% concentration) and acetic acid at ambient temperatures.

Thermal Performance:

Continuous service up to 870°C (oxidizing) or 450°C (reducing atmospheres).

Biocompatibility:

ASTM F138/F139 compliant for surgical implants and MRI-safe components.

Mechanical Properties

Condition	Tensile Strength	Yield Strength	Elongation	Hardness (HV)
Annealed	515–690 MPa	205 MPa (min)	40% (min)	215
Cold-Rolled (H)	860–1.030 MPa	690 MPa (min)	12% (min)	310

Competitive Advantages

Molybdenum Edge: Critical for chloride resistance in desalination plants or coastal HVAC systems.

Low Carbon Variants: 316L (0.03% max C) prevents sensitization during welding.

Surface Versatility: Electropolished (Ra ≤0.25 µm) for sanitary uses or No. 8 mirror finish for architectural aesthetics.

Cost-to-Performance Ratio: 20–30% longer service life than 304 in aggressive environments.

Industry Applications

Marine: Boat railings, desalination pipe liners, offshore platform heat exchangers.

Pharmaceutical: Bioreactor vessels, CIP system tubing, vaccine storage tanks.

Food Processing: Brine solution tanks, seafood packaging machinery.

Medical: Orthopedic screws, endoscope components, sterilization trays.

Energy: Flue gas scrubbers, geothermal steam condensers.

Frequently Asked Questions

Q1: When to choose 316 over 316L?

A1: Use standard 316 for non-welded high-temperature applications. Opt for 316L when welding is required to avoid carbide precipitation.

Q2: Can 316 strips handle saltwater immersion?

A2: Yes, but ensure regular passivation. For permanent submersion, consider super-austenitic grades like 904L.

Q3: Is 316 suitable for high-pressure environments?

A3: Absolutely. Cold-rolled H-tempers achieve yield strengths up to 1.030 MPa for hydraulic valve springs.

Q4: How does 316 compare to duplex 2205?

A4: 2205 offers higher strength but lower formability. 316 excels in deep-drawn components like pharmaceutical capsules.

Q5: Can you provide FDA-compliant finishes?

A5: Yes. Our electropolished strips meet FDA 21 CFR 175.300 and 3-A Sanitary Standards.

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