17-4 PH Stainless Steel Bar

UNS S17400, AMS 5643, ASTM A564, ASTM A693 Grade 630, NACE MR0175/MR0103, H-1150D

Request a Quote

17-4 PH Stainless Steel BarOur 17-4 PH Stainless Steel (SS) is a precipitation-hardening martensitic stainless steel, with a chemical makeup of approximately 17% chromium and 4% nickel. Typical usage is seen in applications requiring high strength and a modest level of corrosion resistance. The strength and toughness desired can be manipulated by the temperate range in the heat treatment process. Best Stainless offers high-quality standards of 17-4 stainless steel including UNS S17400, AMS 5643, ASTM A564, and ASTM A693 Grade 630.

17-4 PH stainless steel can be used for a variety of industries including pump shafts, oil paths, mechanical seals, and within the aerospace industry. Its composition is carbon, chromium, Columbian + tantalum, copper, manganese, nickel, phosphorous, silicon, and sulfur.

Below you will find typical applications of 17-4 PH stainless steel as well as the metals' composition and mechanical properties. Learn more about the value-added services that we offer to help you expedite the current job you have at hand.

17-4 PH Stainless Steel Bar Stock

Our stainless steel bar stock lengths range from the industry standard 12' to 28' long. For projects requiring long-length stainless steel bar, our inventory ranges from 20’-28’ R/L. We also offer several shape options, including pump shafts, round bar, square bar, boat shafts, flat bar, and hex bar shapes. Click here to view a full list of stainless steel bar stock.

Ask An Expert

17-4 PH Stainless Steel Bar Properties

ConditionUltimate Tensile
Strength (PSI)
0.2% Yield
Strength (PSI)
(% in 2in.)
Reduction Of
Area (%)
H900 190,000 170,000 10 40 388 C40 Quote »
H1025 155,000 145,000 12 45 331 C35 Quote »
H1075 145,000 125,000 13 45 311 C32 Quote »
H1150 135,000 105,000 16 50 277 C28 Quote »
H1150-M 115,000 75,000 18 55 255 C24 Quote »
H1150-D 125,000 105,000 16 50 255 min-
311 max
C24-33 Quote »

17-4 PH Stainless Steel Bar Applications

17-4 PH Stainless Steel Stock Shapes

  • 17-4 PH Pump Shafts
    • As a leading stainless steel bar distributor to the pump manufacturing industry, Best Stainless provides high-quality, pump shaft bar in several common grades and sizes. 
  • 17-4 PH Round Bar
    • Our stainless steel round bar supply ranges from 1/8” to 24” in diameter. As an industry leader in long-length stainless steel bar, we provide the perfect stock for your needs.
  • 17-4 PH Square Bar
    • Our stainless steel square bar stock is comprehensive and comes in a number of square bar grades, like 300 Series and 400 Series. 
  • 17-4 PH Boat Shaft
    • Best Stainless supplies a variety of boat shaft stainless steel bar in long lengths and oversized to finish. 
  • 17-4 PH Flat Bar
    • From Precipitation Hardening grades to Duplex Stainless Steel grades, our stainless steel flat bar are high-quality and can be used for a variety of applications.
  • 17-4 PH Hex Bar
    • Our stainless steel hexagon bar come in several grades and can be cut to your specific needed size for any project or application. 


17-4 PH Stainless Steel Bar Composition

  • Carbon 0.070 max
  • Chromium 15.00 - 17.50
  • Columbian + Tantalum 0.15 - 0.45
  • Copper 3.00 - 5.00
  • Manganese1.00 max
  • Nickel 3.00 - 5.00
  • Phosphorus 0.040 max
  • Silicon 1.00 max
  • Sulfur 0.030 max

17-4 PH Industry Standards

  • UNS S17400
  • AMS 5643
  • ASTM A564
  • ASTM A693 Grade 630
  • NACE MR0175/MR0103 (H-1150D Condition)


Call us today at (713)482-4000

Do you have a question? Ask an Expert.

Fields with * are required.