Material Grade Specification

Stainless Steel 316/316L Flanges — ASTM A182 F316/F316L

SS 316/316L flange manufacturer, Mumbai. ASTM A182 F316/F316L, chloride & marine grade. All flange types, Class 150-2500. EN 10204 3.1/3.2. Quote in 30 min.

Material Specification & Overview

ASTM A182 F316/F316L flanges incorporate 2-3% Molybdenum for exceptional resistance to chloride pitting, crevice corrosion, and aggressive process chemicals in marine, chemical, and offshore installations.

UNS DesignationS31600 (316) / S31603 (316L)
Governing StandardASTM A182 / ASME SA-182 Grade F316 / F316L

Chemical Composition (wt %)

Governing specification limits per ASTM / ASME standards. Actual values provided on EN 10204 3.1 MTC.

ElementSpecification Limit / Composition
Molybdenum (Mo)2.00 - 3.00%
Chromium (Cr)16.0 - 18.0%
Nickel (Ni)10.0 - 14.0%
Carbon (C)0.08 max (F316)

Mechanical Properties

PropertySpecification Limit
Yield Strength205 MPa min (F316)
Tensile Strength515 MPa min (F316)
Hardness95 HRB max

Pressure-Temperature Rating Reference

Service TempClass 150Class 300Class 600Class 900
Ambient (-29 to 38°C)275 psi720 psi1440 psi2160 psi

Primary Industry Applications

Offshore oil platforms & marine seawater piping
Chemical processing with chloride process streams
Active pharmaceutical ingredient (API) reactor manifolds
Pulp and paper bleaching equipment

Related Products & Industry Guides

Frequently Asked Procurement Questions

Q: Does 316 resist stagnant seawater indefinitely?

A: No. In low-velocity or stagnant seawater, 316 can experience pitting/crevice corrosion. Duplex 2205 or Super Duplex 2507 is recommended for continuous stagnant seawater exposure.

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