305 1.4303 Țevi și tuburi din oțel inoxidabil

AISI 305 UNS S30500 1.4303 stainless steel is comprised of 17% to 19% chromium, 12% carbon, 2% maximum manganese, 10% to 13% nickel with traces of phosphorus sulfur and silicon, with the balance being iron. It was designed for maximum formability, exhibiting good strength and rezistență la coroziune. Grade 305 has the lowest work and strain hardening rates of all the oțel inoxidabil austenitic. This low work hardening rate makes prelucrare la rece one of the design strengths of 305.

Type 305 Stainless Steel possesses the same excellent coroziune resistance as Type 302, but has a much lower rate of work hardening. It is well suited for cold forming operations in which this low rate of work hardening is desirable. Its rezistența la curgere, rezistență la tracțiune, și duritate increase at rates which are exceptionally low. However, its initially good elongation falls off rapidly.

Type 305 stainless steel is widely used for the production of parts by free spinning and cold heading operations, and it is particularly suitable for severe cold drawing, especially where the part can be completely formed in two draws. In many instances, the intermediate anneal can be eliminated when Type 305 is used. In drawing, the metal should be allowed to slip freely through the hold-down pads, thus holding stretching to a minimum. Used widely for electronic parts and other drawn applications.

Compoziție chimică:

This alloy does not respond to heat treatment. Cold work will cause an increase in both hardness and strength.

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