This document contains information based on average values as obtained from the results of laboratory tests and observations made on
the material. Ideal-Tek SA declines all responsibility from an improper use of the product described in this document.
Technical Datasheet: Stainless steel type SA
General Notes
• low carbon austenitic steel (Material number 1.4435, DIN X2CrNiMo18-14-3, AISI number 316L)
• contains from 16.5 to 18.5 wt% chromium and has important quantities of nickel and molybdenum as
additional alloying elements
• non-magnetizable
• good corrosion resistance to most chemicals, salts and acids
• generally used where corrosion resistance and toughness are primary requirements
• typical applications include tweezers for the electronic industry, watch-makers, jewelers and
laboratory and medical applications in moderately aggressive chemical environments
Composition
Component Wt.% Component Wt.% Component Wt.%
C ≤0.03 Si ≤1.0 Mn ≤2.0
P ≤0.045 S ≤0.03 Cr 17.0-19.0
Mo 2.5-3.0 Ni 12.5-15.0
Mechanical properties:
State annealed
Density 8.0 g/cm3
Hardness HB30 ≤215
Hardness Rockwell B 79
Tensile strength, ultimate: 500-700 MPa
Tensile strength, yield 290
0.2% Yield stress ≥200 MPa
Elongation, break 40%
Modulus of elasticity 200 GPa
Thermal properties
Coef. of lin. therm expansion: 16.0 E-6/°C 20°C-100°C
Coef. of lin. therm expansion: 17.0 E-6/°C 20°C-300°C
Specific heat capacity: 0.50 J/(g·K)
Thermal conductivity: 15 W/(m·K)
Continuos use temperature: 350°C
Max service temperature, air 925°C
Electrical properties
Resistivity 0.75 E-4 Ohm.cm
