17-4PH UNS S17400 1.4542 X5crnicunb16-4 AISI 630 SUS630 Forged Steel Shafts
We are a professional manufacturer of 17-4PH UNS S17400 1.4542 X5crnicunb16-4 AISI 630 SUS630 Forged Steel Shafts in China.
What is Forged Steel Shafts?
Forged steel shafts are created through a manufacturing process that involves the shaping of the shaft Forgings using localized compressive forces. The forging process is initiated when a piece of steel is struck repeatedly with a hammer or squeezed with a press.
A forged shaft is a high-strength, durable component used in various industries, including automotive, aerospace, power generation, and heavy machinery. It is produced through the forging process, which involves heating metal and shaping it under high pressure to refine its grain structure, enhance mechanical properties, and improve resistance to fatigue and impact.
17-4 PH Forged Shaft
A 17-4 PH forged shaft is made from precipitation-hardening stainless steel, known for its high strength, corrosion resistance, and excellent mechanical properties. It is widely used in aerospace, marine, chemical, and power generation industries due to its ability to maintain strength at high temperatures and resist stress corrosion cracking.
17-4 PH (also known as Grade 630) is a precipitation-hardening martensitic stainless steel that offers high strength, hardness, and excellent corrosion resistance. It is widely used in aerospace, marine, chemical, and medical industries due to its ability to be heat-treated to different strength levels.
17-4PH is a
Chemical Composition of 17-4 PH Stainless Steel:
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.07 |
| Chromium (Cr) | 15.0 – 17.5 |
| Nickel (Ni) | 3.0 – 5.0 |
| Copper (Cu) | 3.0 – 5.0 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
Mechanical Properties of S17400,AISI 630
| Property | Value |
|---|---|
| Tensile Strength | ≥ 1310 MPa |
| Yield Strength | ≥ 1170 MPa |
| Hardness (Rockwell C) | 38-44 HRC |
| Elongation (%) | 10-12% |
Heat Treatment Options for 17-4 PH:
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Solution Annealing: 1020-1060°C (slow cool) to condition the material.
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Aging (Precipitation Hardening): Heat treatment at different temperatures (H900, H1025, H1075, H1150) to adjust mechanical properties.
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H900 Condition (Most Common): 482°C for 1 hour, then air cool—yields maximum strength.
Applications of 17-4 PH shaft
Aerospace Components – Shafts, fasteners, landing gear parts.
Marine Industry – Propeller shafts, pump shafts, and valve components.
Oil & Gas Industry – Drilling tools, valve stems, and pump shafts.
Chemical Processing Equipment – Corrosion-resistant parts.
Medical Equipment – Surgical tools and orthopedic implants.
