17 4 Stainless Steel Hardness Chart

For applications requiring high strength and hardness plus corrosion resistance this alloy is an outstanding choice.

17 4 stainless steel hardness chart.

Mechanical properties can be optimized with heat treatment. 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. It also can include between 3 and 5 copper. In gen eral the corrosion resistance of al 17 4 alloy is supe rior to that of the hardenable 400 series stainless steels.

Excellent mechanical properties at a high strength level may be obtained by such treatment. The grade combines high strength hardness up to 572 f 300 c and corrosion resistance. Type 17 4 is the most common grade of martensitic precipitation hardenable ph alloys. 17 4 stainless steel 17 4 uns s17400.

17 4 ph stainless steel 3 17 4 ph stainless steel provides excellent mechanical properties. As sintered heat treated to h900 standard and heat treated to h1150 standard. Al 17 4 precipitation hardening alloy is comparable to that of type 304 stainless steel in most media. For applications requiring high strength and hardness plus corrosion resistance this alloy is an outstanding choice.

In addition it is more cost effective than many high nickel non ferrous alloys. Very high yield strength up to 1100 1300 mpa 160 190 ksi can be achieved. 17 4 provides an outstanding combination of high strength good mechanical properties at temperatures up to 600 f 316 c and short duration low temperature heat treatments that minimize warpage and scaling. The numbers 17 4 refer to its composition.

Appendices printed november 2000 1 s9 chemical analysis specified grade uns no. Stainless steel grade chart atlas steels specialty steels product reference manual section 9. 17 4 ph is a chromium nickel grade of stainless that may be hardened by a single low temperature precipitation hardening heat treatment. What s it all mean.

Stainless steel grades are lumped into classes the main ones being austenitic ferritic and martensitic the metalworking powers that be developed these classes to consolidate chemical and mechanical properties into categories based on the needs of customers uses. Alloy 17 4ph is a precipitation hardening martensitic stainless steel with cu and nb cb additions. Table 2 typical mechanical properties property. C si mn p s cr mo ni other 253ma s30815 0 05 1 1 2 0 0 8 0 040 0 030 20 0 22 0 10 0 12 0 n 0 14 0 20 0 10 ce 0 03 0 08.

17 chromium and 4 nickel. As with other precipitation hardening alloys al 17 4 pre cipitation hardening alloy is more susceptible to stress.