Type 316H Stainless Steel for Elevated Temperature Conditions (UNS S31609)

Type 316H is a higher carbon variant of 316 making the steel more suitable for use in applications where elevated temperatures are present. Stabilised Grade 316Ti offers similar qualities.

The increased carbon content delivers a greater tensile and yield strength. The austenitic structure of the material also gives this grade excellent toughness, even down to cryogenic temperatures.

Applications of using Type 316H Stainless Steel

The steel lends itself well for use in the petrochemical, gas and chemical industry. Masteel supply Grade 316H to a variety of customers including fabricators of pressure vessels, industrial boilers and heat exchangers.

Benefits of using Type 316H Stainless Steel

Benefits of using Grade 316H stainless steel include:

  • Increased carbon content heat resistant qualities
  • Greater tensile yield strength
  • Greater short and long term creep strength

Chemical Composition of Type 316H Stainless Steel

The chemical composition of Type 316H Stainless Steel is provided in the table below.

UNS NO Grade C Si Mn P S Cr Mo Ni N
S31609 316H 0.04/0.10 0.75 2.00 0.045 0.030 16.00/18.00 2.00/3.00 10.00/14.00 -

Mechanical Properties of Type 316H Stainless Steel

The mechanical properties of Type 316H Stainless Steel are provided in the table below.

UNS No Grade Proof Stress
0.2% (MPa)
Tensile Strength
(MPa)
Elongation
A5(%)
Hardness Max
HB HRB
S31609 316H 205 515 40 217 95

 

This information has been sourced, reviewed and adapted from materials provided by Masteel UK Ltd.

For more information on this source, please visit Masteel UK Ltd

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