17 4 Stainless Steel Vs 304

Austenitic stainless steels such as grade 316 can provide.
17 4 stainless steel vs 304. When you compare stainless steel 17 4 ph vs 316 it is obvious that 17 4 ph has higher hardening content. There are several factors that come into play when choosing the type of stainless steel to use. High strength 17 4 ph stainless steel with a higher chromium content than 15 5 ph stainless steel this high strength 17 4 ph offers better corrosion resistance. Mechanical properties such as strength and ductility can be optimized with heat treatment.
And precipitation hardened stainless steels like grades 17 4 ph and 15 5 ph. In this regard a seagoing vessel s pump and valve parts are made of type 17 4 ph stainless steel. What is type 304 stainless steel and what s it used for. 17 chromium and 4 nickel.
Type 17 4 ph stainless steel contains between 15 17 5 of chromium in its composition. Its alloys are all modifications of the 18 chromium 8 nickel austenitic alloy. 304 stainless is also cheaper in cost compared to 316 another reason for its popularity and widespread use. 17 4 stainless steel also known as sae type 630 is a common and exceptionally durable type of steel used in a diverse variety of industries and applications.
Type 304 with its chromium nickel content and low carbon is the most versatile and widely used of the austenitic stainless steels. It also can include between 3 and 5 copper. Type 304 stainless is austenitic and non magnetic meaning it also provides low thermal and electrical conductivity. The numbers 17 4 refer to its composition.
Deciding whether to use grade 303 vs 304 stainless steel often comes down to determining what the application will be. What are the strength requirements of the stainless steel. It is also known as 630 stainless steel. 17 4 ph stainless steel uns s17400 is a precipitation hardenable martensitic stainless steel that delivers an excellent combination of oxidation and corrosion resistance and is comparable to 304 in most conditions or environments.
Precipitation hardening grade is a combination of two stainless steel structures i e. 304 stainless steel is the most versatile and widely used austenitic stainless steel in the world due to its corrosion resistance. Examples of these are grade 440c and 17 4 ph respectively. Most of the parts of that ship that you went on that annual cruise are made from type 17 4 ph stainless steel.
Ss316 and 17 4 ph are one of the most important stainless steel grades. Both steels are durable and provide excellent resistance to corrosion and rust.