316 / 316L

316 / 316L

316/316L is the most commonly used austenitic stainless steel in the chemical process industry. The addition of molybdenum increases general corrosion resistance, improves chloride pitting resistance and strengthens the alloy in high temperature service. Through the controlled addition of nitrogen it is common for 316/316L to meet the mechanical properties of 316 straight grade, while maintaining a low carbon content.

Chemistry

 NiCrMoMnSiCSPNFe
MIN 10.0 16.0 2.0 - - - - - - -
MAX 14.0 18.0 3.0 2.0 0.75 0.03 0.03 0.045 0.1 Balance

Specifications

AMS 5507, AMS 5648, AMS 5653
ASME SA 240, ASME SA 312, ASME SA 479
ASTM A 240, ASTM A 276, ASTM A 276 Condition A, ASTM A 276 Condition S, ASTM A 312, ASTM A 479
EN 1.4404
UNS S31600, UNS S31603
W. Nr./EN 1.4401
Werkstoff 1.4404

Inventory

316 / 316L Coil, 316 / 316L Concentric Reducers, 316 / 316L Fittings, 316 / 316L Flanges, 316 / 316L Hex Bar, 316 / 316L Pipe, 316 / 316L Plate, 316 / 316L Round Bar, 316 / 316L Sheet, 316 / 316L Stub Ends, 316 / 316L Tees, 316 / 316L Welding Products

Common Trade Names

316 Stainless, 316L Stainless

Features

  • Improved general and localized corrosion to 304/304L stainless
  • Good formability
  • Good weldability

Applications

  • Food processing
  • Marine
  • Pulp & paper
  • Chemical process vessels
  • Pharmaceutical Equipment

Physical Properties

Density: 0.285 lb/inch3
Poisson's Ratio: 0.3
Electrical Resistivity: 445 Ohm-circ mil/ft

Temperature, °F 70 212 932 1832
Coefficient* of Thermal Expansion, in/in°F x 10-6 - 9.2 10.1 10.8
Thermal Conductivity
Btu • ft/ft2 • hr • °F
7.8 - - -
Modulus of Elasticity Dynamic, psi x 106 29 - - -

Mechanical Properties

Representative Tensile Properties

Ultimate Tensile Strength, ksi 75
0.2% Yield Strength, ksi 30
Elongation, % 40
Hardness MAX, Brinell 217

Typical Tensile and Impact Properties

Temperature, °F 70 200 400 600 800 1000 1200 1400
Ultimate Tensile Strength, ksi 82.4 75.6 71.1 71.1 71.1 68.4 50.7 30.7
0.2 % Yield Strength, ksi 42.4 - - - 26.5 23.4 22.6 -
Charpy Impact V-notch, ft-lbs 65 - 100 - - - - - - -