Metallurgical Grade Specs

Stainless Steel 316 / 316L Products (Marine & EP Grade)

High molybdenum austenitic steel flanges, fittings, and electropolished sanitary tubes. Superior chloride pitting resistance for marine, chemical, and pharmaceutical systems.

Chemical Composition & Material Specifications (SS 316 / 316L (UNS S31600 / S31603))

Grade / Element	Carbon (C)	Chromium (Cr)	Nickel (Ni)	Molybdenum (Mo)	Other Elements
SS 316 (UNS S31600)	0.08 max	16.0 - 18.0	10.0 - 14.0	2.0 - 3.0	Si 0.75, Mn 2.0
SS 316L (UNS S31603)	0.03 max	16.0 - 18.0	10.0 - 14.0	2.0 - 3.0	Low Carbon Marine Grade

Mechanical & Physical Properties

Property	Tensile Strength (MPa)	Yield Strength 0.2% (MPa)	Elongation (%)	Hardness (HB / HRB)
SS 316 Annealed	515 min	205 min	40% min	217 HB max
SS 316L Annealed	485 min	170 min	40% min	217 HB max

Primary Industry Applications for SS 316 / 316L (UNS S31600 / S31603)

Pharmaceutical Cleanrooms

Electropolished tubes (Ra <= 0.4 um) and BPE fittings for WFI and sterile fluids.

Marine & Offshore Piping

Seawater handling, ballast systems, and coastal refinery piping.

Frequently Asked Questions (SS 316 / 316L (UNS S31600 / S31603))

Why is SS 316L required for pharmaceutical electropolished tubes?

The 2-3% Molybdenum addition provides pitting resistance equivalence (PREN >= 25) essential for CIP/SIP steam sterilization.

Partner with Sakshi Forge for Reliable Industrial Steel Solutions

Delivering precision-engineered flanges, pipes, and forged steel components designed for strength, durability, and performance in critical high-pressure industrial applications.