This is a chromium-nickel grade of stainless steel that may be hardened by a single low-temperature precipitation-hardening heat treatment. Excellent mechanical properties at a high strength level may be obtained by such treatment. Scaling and distortion are minimized. This material should not be used in the solution treated condition.
The strength and corrosion resistance properties of 17-4 hold up well in service temperatures up to 800°F.
Fabrication techniques for this steel are similar to those established for the regular stainless steel grades. This material machines well, has excellent welding characteristics, and forges easily. The combination of excellent mechanical and processing properties makes this grade adaptable to a wide variety of applications.

AISI 630
UNS SI7400

Color Marking:
Bars—Ends painted Blue and Yellow
Plates—Corner striped Blue and Yellow

Condition A or H 1150-M

Stock Lengths 10' to 14'
Unit of Measure

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Item #

Estimated Weight per Foot

Estimated Weight 12-Ft. Bar

N/A .0235 lb N/A .2820 lb
N/A .0418 lb N/A .5012 lb
N/A .0653 lb N/A .7831 lb
N/A .0940 lb N/A 1.128 lb
N/A .1279 lb N/A 1.535 lb
N/A .1671 lb N/A 2.005 lb
N/A .2114 lb N/A 2.537 lb
N/A .2610 lb N/A 3.132 lb
N/A .3158 lb N/A 3.790 lb
N/A .3759 lb N/A 4.510 lb
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