630 17-4PH Stainless Steel Round Bar Centerless Ground Condition

Martensitic precipitation/age-hardenable stainless alloy offering high strength and hardness,

excellent corrosion resistance, and good fabricating characteristics.

Steel 17-4 PH is the most widely used of all the precipitation-hardening stainless steels.

Its valuable combination of properties gives designers opportunities to add reliability to their products

while simplifying fabrication and often reducing costs.

This valuable alloy is widely used in the aerospace, chemical, petrochemical, food processing, paper and general
metalworking industries.

17-4 PH is a martensitic precipitation-hardening stainless steel that provides an outstanding combination
of high strength, good corrosion resistance, good mechanical properties at temperatures up to 600°F (316°C),

good toughness in both base metal and welds, and short-time, low-temperature heat treatments that minimize warpage and scaling.

Specifications: AMS 5643, ASME SA564, ASTM A564, ASTM A693 (Strip), ASTM A705

Chemical comosition ( weight % )

Carbon 0.07 max

Manganese 1.00 max

Phosphorus 0.040 max

Sulfur 0.030 max

Silicon 1.00 max

Chromium 15.00 - 17.50

Nickel 3.00 - 5.00

Copper 3.00 - 5.00

Columbium plus Tantalum 0.15 - 0.45

The 17-4PH stainless steel can be supplied in forms of sheets, strips, plates, round bars.

Our bar product program includes round, square, hexagon, all in the drawn, hot rolled, peeled,

and centerless ground condition.

Delivery state

Solution treated & Aged H1150

Ultimate Tensile strength: 135 KSI min. ( 930 Mpa min. )

Yield strength: 105 KSI min. ( 725 Mpa min. )

Elongation: 8% min.

Hardness: RC 38 max.

For Details, please Contact

WUXI GUANGLU Special Steel Co., Ltd.

Stainless martensitic • precipitation hardening steel • stainless ferritic — Our answer to your needs
Tel: +86 510 81812873
Email: export@guanglusteel.com