316 Stainless Steel: Molybdenum Advantage and Basic Properties
Jan 29, 2026
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316 Stainless Steel & the Benefits of Molybdenum
316 (UNS S31600) is an austenitic stainless steel. Compared with 304 grade, it contains 2.0‑2.5 % molybdenum (Mo), which is its key alloying element.
1.Improved resistance to pitting and crevice corrosion
Molybdenum promotes a more stable passive surface film, greatly resisting chloride‑induced attack. It reduces risks of pitting and crevice corrosion for salt spray, seawater and chlorine‑containing chemical media.
2.Better resistance to reducing acids
Superior corrosion performance over 304 in phosphoric acid, acetic acid and dilute sulfuric acid environments.
3.Enhanced high‑temperature creep resistance
Molybdenum strengthens the matrix, delivering higher creep strength than 304 under elevated‑temperature service conditions.
316 stainless steel welded pipe
316 stainless steel pickled pipe
316 stainless steel polished pipe
If you need specific data, tell me:
Are you looking for dimensions and wall thickness (schedule)?
Do you need chemical composition limits or pressure ratings?
Are you comparing TP316 vs TP316L?
chemical composition (Typical Ranges) of 316 Stainless Steel
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 16.0-18.0 |
| Nickel (Ni) | 10.0-14.0 |
| Molybdenum (Mo) | 2.00-3.00 |
| Carbon (C) | ≤0.08 |
| Manganese (Mn) | ≤2.0 |
| Silicon (Si) | ≤0.75 |
Equivalent Grades of 316 Stainless Steel
Mechanical Properties of 316 Stainless Steel
316 vs 304:Comparison of Molybdenum Content and Service Temperature
316 can operate continuously at up to about 870 C (1600 F) in oxidizing environments from an oxidation-resistance standpoint. For pressure-retaining design, however, allowable stresses follow the governing code (for example ASME B31.3), which typically limits service temperature well below this - always confirm the design temperature against the applicable code.
Typical Applications of 316 Stainless Steel
Chemical processing equipment and piping.
Food and beverage processing equipment.
Heat exchangers and pharmaceutical equipment.
Chemical plant piping
Marine freshwater pipeline
Food processing line
Manufacturer of 316 Stainless Steel
GNEE is a professional Chinese supplier of 316 / 316L (UNS S31600 / S31603) stainless steel. We provide seamless & welded pipes, plates and coils complying with ASTM A312, ASTM A240 and EN standards. With molybdenum‑alloyed composition, 316 grade delivers good chloride corrosion resistance for chemical, food‑processing and water‑treatment projects. Each batch comes with EN10204‑3.1 MTC. PMI, hydrostatic, NDT and third‑party inspection (SGS/BV/TÜV) are available. We offer cut‑to‑length, beveling processing, free samples and seaworthy export packaging. Both small and bulk orders are accepted, products exported to over 60 countries worldwideGnee Steel...
316 Stainless Steel Plates
316 Stainless Steel Coils
316 Stainless Steel Pipes
If you are looking for high-quality 316 stainless steel products, please let me know the type and specifications you require, and we can provide you with professional solutions.
FAQ
The main difference is carbon content. 316: C ≤0.08%; 316L low‑carbon grade with C ≤0.03%, minimizing intergranular corrosion after welding. 316L is preferred for piping projects. Both grades contain molybdenum for better chloride resistance and have similar mechanical properties.
316 is normally non‑magnetic in solution‑annealed condition. Slight magnetism may occur after cold working or bending, which is normal and does not indicate material defect.
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