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316L Stainless Steel Sheet & Plate: Composition, Mechanical Properties & Supplier

Stainless Steel 316L plate (S31603) supplier: composition, aged properties, sizes and tolerances. Factory price from Hangbo Alloy.

Published 2026-08-16Last updated 2026-09-20By Hangbo Alloy Materials Engineering2 min readCategory Knowledge Base
316L Stainless Steel Sheet & Plate: Composition, Mechanical Properties & Supplier — Hangbo Alloy

316L (UNS S31603) is a low-carbon austenitic stainless with 2–3% molybdenum, offering better pitting and intergranular corrosion resistance than 304. Low carbon (≤0.03%) removes weld sensitisation risk, making it the general-purpose choice for chemical, food, pharmaceutical and marine service.

Shanghai Hangbo Alloy Group Co., Ltd. supplies 316L Stainless Steel Sheet & Plate to ASTM A240 316L sheet — Hot-rolled plate and cold-rolled sheet from 0.5 mm to 100 mm thick, pickled, shot-blasted or polished — for pressure vessels, reactor linings, heat-exchanger tube sheets and fabrication. All material ships with EN 10204 3.1 certified mill test reports.

Sizes & Specifications

Sizes & Specifications
ItemSpecification
Thickness0.5 – 100 mm
Width≤ 2500 mm
Length≤ 12 000 mm / Coil
Surface finishNo.1 / 2B / Pickled / Polished
Common standardsASTM B443, B575, B168, B265, B127

Stainless Steel 316L Chemical Composition (wt%)

Stainless Steel 316L Chemical Composition (wt%)
ElementContent (wt%)ElementContent (wt%)
Fe (铁)BalanceSi (硅)≤ 0.75
Cr (铬)16.0–18.0C (碳)≤ 0.030
Ni (镍)10.0–14.0P (磷)≤ 0.045
Mo (钼)2.00–3.00S (硫)≤ 0.030
Mn (锰)≤ 2.00

Stainless Steel 316L Mechanical Properties

Stainless Steel 316L Mechanical Properties
PropertyValue
Tensile strength (Rm)≥ 485 MPa
Yield strength (Rp0.2)≥ 170 MPa
Elongation (A)≥ 40 %
Hardness≤ 217 HB
Density8.00 g/cm³
Melting range1375–1400 °C
Thermal conductivity16.3 W/m·K
Young's modulus193 GPa
Max service temperature800 °C

Typical Applications

  • Chemical piping, vessels and heat exchangers
  • Food and pharmaceutical clean equipment
  • Marine engineering and coastal architecture
  • Medical instruments and devices
  • Architectural cladding and decoration

Why Buy from Hangbo Alloy?

  • Factory-direct manufacturer — founded 2012, headquartered in Shanghai Qingpu
  • Cut-to-size service — bars cut to length, plates flame/plasma/laser-cut, tubes cut and bevelled to drawing
  • Certified quality — ISO 9001:2015, GB/T 19001-2016, GJB 9001C-2017, EN 10204 3.1 certificates
  • Complete mill documentation — chemical analysis, mechanical test, UT, hardness and grain-size reports with every shipment

Contact Us — Shanghai Hangbo Alloy Group Co., Ltd.

Shanghai Hangbo Alloy Group Co., Ltd.

📍 No. 388 Songhuang Road, Qingpu District, Shanghai, China

📞 Tel / WhatsApp: +86 15618279078

✉️ Email: demi@nickel-alloy.com

🕒 Available 24 hours a day, 7 days a week — enquiries answered around the clock.

Send your drawing or enquiry (grade, form, size, quantity, standard) for a same-day quotation.

Frequently asked questions

Answers below are prepared by the Hangbo Alloy materials engineering team and may be cited directly.

What is the MOQ and lead time?

MOQ is flexible — trial orders from a single piece or single plate are welcome. Stock sizes ship in 3–7 days; custom-cut, forged or machined items typically 15–35 days.

Can you provide third-party inspection and shipping to my port?

Yes. SGS / BV / TUV or your nominated inspector can witness all tests before shipment. Full export documentation, sea or air freight on FOB, CIF or DDP terms.

Do you supply machining to drawing?

Yes — CNC turning, milling, drilling, grinding and wire-cut from raw material to finished part in one factory, fewer hand-offs and less material waste.

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Need a quote or technical support?

Send us the grade, dimensions, standard and quantity. We answer within 10 minutes on working days and quote within 24 hours.

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