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'
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Size

Estimated Weight per Foot

Estimated Weight 12-Ft. Bar

N/A 26.10 lb N/A 313.2 lb
N/A 28.23 lb N/A 338.8 lb
N/A 30.45 lb N/A 365.3 lb
N/A 32.74 lb N/A 392.9 lb
N/A 35.12 lb N/A 421.5 lb
N/A 37.59 lb N/A 451.0 lb
N/A 42.77 lb N/A 513.2 lb
N/A 48.28 lb N/A 579.3 lb
N/A 54.13 lb N/A 649.5 lb
N/A 60.31 lb N/A 723.7 lb
N/A 66.82 lb N/A 801.9 lb
N/A 73.67 lb N/A 884.0 lb
N/A 80.86 lb N/A 970.2 lb
N/A 88.37 lb N/A 1060 lb
N/A 96.22 lb N/A 1155 lb
N/A 104.4 lb N/A 1253 lb
N/A 112.9 lb N/A 1355 lb
N/A 121.8 lb N/A 1461 lb
N/A 131.0 lb N/A 1572 lb
N/A 140.5 lb N/A 1686 lb
N/A 150.4 lb N/A 1804 lb
N/A 160.5 lb N/A 1926 lb
N/A 171.1 lb N/A 2053 lb
N/A 181.9 lb N/A 2183 lb
N/A 193.1 lb N/A 2317 lb
N/A 204.6 lb N/A 2456 lb
N/A 216.5 lb N/A 2598 lb
N/A 241.2 lb N/A 2895 lb
N/A 267.3 lb N/A 3207 lb
N/A 323.4 lb N/A 3881 lb
N/A 384.9 lb N/A 4619 lb
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