Because chromium carbide with intergranular corrosion is dissolved during the annealing process. For optimum corrosion resistance, softness and ductility, SS 316 may require subsequent reannealing after welding or heat treatment. To avoid weld corrosion, the carbon content can be reduced, for example using ultra-low carbon stainless steel 316L, stabilized stainless steel or adding niobium (Nb).
To avoid weld cracking, ensure that the weld contains 5-10% ferrite during the welding process. Type 316 stainless steel has good weldability and does not require preheating, but requires a similar filler material composition but a high alloy content. Therefore, greater power and lower processing speeds are required, which may result in shortened tool life and difficulty in obtaining a smooth surface. MachiningĪISI 316 stainless steel has higher strength and higher work hardening rate than carbon steel and low alloy steel, so it is more difficult to process. Cold WorkingĪISI 316 grade stainless steel is suitable for cold working such as cold heading, cold drawn and cold riveting, but it is more difficult than carbon steel. When the weldment of 316 grade stainless steel is not suitable for complete annealing, the residual stress can be moderately lowered below 600 ☌, which makes it have good creep resistance. Type 316 SS cannot be hardened by heat treatment, but can be hardened by cold working. Forging TemperatureĪISI 316 stainless steel typical forging temperature is 925-1260 ☌ (1700-2300 ℉). The temperature for homogenization heat treatment is about 1250 ☌. Type 316 stainless steel surface should be carefully cleaned before annealing and must be protected with vacuum, hydrogen or inert gas in order to prevent the formation of an oxide layer during the annealing process. Solution Treatment (Annealing Temperature)Īnnealing at a temperature range of 1010-1065 ☌, then cooling rapidly. AISI SAE ASTM 316 Heat TreatmentĪISI 316 stainless steel heat treatment are summarized in the following content, such as annealing, hardening, etc. 316L stainless steel has better carbide precipitation resistance than AISI 316 and can be used in the above temperature range. In the range of 427 ☌ – 857 ☌, it is better not to continuously use SS 316, but when 316 stainless steel is continuously used outside this temperature range, it has good heat resistance. SS316 Heat Resistanceģ16 SS has good oxidation resistance in intermittent use below 871 ☌ and continuous use up to 927 ☌ in air. Type 316 steel is not magnetic, but may be weakly magnetic after cold working. K)Ĭoefficient of thermal expansion, (10 -6/K).Thermal conductivity of stainless steel 316, (W/m Modulus of elasticity (Elastic modulus), GPa The data sheet below shows SS 316 material physical properties, such as density, melting point, thermal conductivity, thermal expansion, magnetic, modulus of elasticity, specific heat capacity, etc. Table 3, ASTM 316 stainless steel properties Table-2, SS 316 stainless steel properties, data are for 25.4 mm (1 in.) diameter bar
The following tables show AISI 316 grade stainless steel mechanical properties such as yield strength, tensile strength, elongation and hardness, etc.
AISI 316 stainless steel (UNS S31600) is one of the most widely used austenitic stainless steels. Remotes ::install_github( "mlr-org/mlr ") Citing.
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