17 4 Stainless Steel Vs 304

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.

17 4 stainless steel vs 304.

The numbers 17 4 refer to its composition. 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. Most of the parts of that ship that you went on that annual cruise are made from type 17 4 ph stainless steel.

304 stainless is also cheaper in cost compared to 316 another reason for its popularity and widespread use. What is type 304 stainless steel and what s it used for. Ss316 and 17 4 ph are one of the most important stainless steel grades. Deciding whether to use grade 303 vs 304 stainless steel often comes down to determining what the application will be.

Examples of these are grade 440c and 17 4 ph respectively. 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. 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. Both steels are durable and provide excellent resistance to corrosion and rust. When you compare stainless steel 17 4 ph vs 316 it is obvious that 17 4 ph has higher hardening content.

In this regard a seagoing vessel s pump and valve parts are made of type 17 4 ph stainless steel. Type 304 stainless is austenitic and non magnetic meaning it also provides low thermal and electrical conductivity. What are the strength requirements of the stainless steel. 304 stainless steel is the most versatile and widely used austenitic stainless steel in the world due to its corrosion resistance.

And precipitation hardened stainless steels like grades 17 4 ph and 15 5 ph. Its alloys are all modifications of the 18 chromium 8 nickel austenitic alloy. 17 chromium and 4 nickel. Very high strengths can be achieved with martensitic stainless steels like grade 440c.

Mechanical properties such as strength and ductility can be optimized with heat treatment. 316 and 17 4ph are austenite and precipitation hardening material grades respectively which are defined in american standards.