Our 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.
17-4 PH Stainless Steel Bar Properties
| Condition | Ultimate Tensile Strength (PSI) | 0.2% Yield Strength (PSI) | Elongation (% in 2in.) | Reduction Of Area (%) | Hardness Brinell | Hardness Rockwell | |
|---|---|---|---|---|---|---|---|
| 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
- Pump Shafts
- Oil Patch
- Mechanical Seals
- Aerospace
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)
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