ASTM A564/A564M 17-4PH UNS S17400 Grade 630 Precipitation Hardening Stainless Steel Bar Manufacturer & Supplier
Material Grade:17-4PH / Grade 630 / UNS S17400 / SUS 630
Standard:ASTM A564 / ASTM A564M
Diameter:6 mm – 500 mm
Length:1000 mm–6000 mm or Custom
Surface Finish:Black, Bright, Peeled, Polished, Centerless Ground
| Item | Specification |
|---|---|
| Product Name | ASTM A564/A564M 17-4PH Stainless Steel Bar |
| Material Grade | 17-4PH / Grade 630 / UNS S17400 |
| Standard | ASTM A564 / ASTM A564M |
| Product Type | Round Bar, Bright Bar, Forged Bar, Flat Bar, Hex Bar |
| Diameter | 6 mm – 500 mm |
| Length | 1000 mm–6000 mm or Custom |
| Surface | Black, Bright, Peeled, Polished, Centerless Ground |
| Heat Treatment | Solution Annealed, H900, H1025, H1075, H1100, H1150 |
| Certificate | EN 10204 3.1 / MTC |
JUDE STEEL is a professional manufacturer and supplier of ASTM A564/A564M 17-4PH Stainless Steel Bar, also known as UNS S17400, Grade 630 Stainless Steel Bar, and 17-4PH Precipitation Hardening Stainless Steel Bar.
We supply round bars, bright bars, forged bars, peeled bars, and centerless ground bars in various diameters and lengths with fast delivery worldwide.
Chemical Composition Of ASTM A564 17-4PH Round Bar
| Element | Content (%) |
|---|---|
| Cr | 15.0–17.5 |
| Ni | 3.0–5.0 |
| Cu | 3.0–5.0 |
| Nb + Ta | 0.15–0.45 |
| C | ≤0.07 |
| Mn | ≤1.00 |
| Si | ≤1.00 |
| P | ≤0.040 |
| S | ≤0.030 |
| Fe | Balance |
Mechanical Properties Of 17-4PH Precision Ground Bar
| Property | Value |
|---|---|
| Tensile Strength | ≥1310 MPa (H900) |
| Yield Strength | ≥1170 MPa |
| Hardness | 38–44 HRC |
| Elongation | ≥10% |
| Density | 7.75 g/cm³ |
We manufacture and supply:
- 17-4PH Stainless Steel Round Bar
- 17-4PH Bright Bar
- ASTM A564 Round Bar
- Grade 630 Stainless Steel Bar
- UNS S17400 Round Bar
- Forged Stainless Steel Bar
- Peeled Stainless Steel Bar
- Ground Stainless Steel Bar
- Precision Machined Bar
Our ASTM A564/A564M 17-4PH stainless steel rods are widely used in:
- Aerospace structural components
- Aircraft landing gear parts
- Oil & Gas valves
- Pump shafts
- Marine equipment
- Chemical processing equipment
- Food processing machinery
- Medical instruments
- Nuclear power equipment
- High-pressure fasteners
- Precision molds
- Turbine components
What is 17-4PH Stainless Steel?
17-4PH is a precipitation hardening martensitic stainless steel offering an excellent combination of high strength, corrosion resistance, and toughness.
Is Grade 630 the same as 17-4PH?
Yes. Grade 630 (SUS630) and 17-4PH refer to equivalent precipitation hardening stainless steel grades under different standards.
What is UNS S17400?
UNS S17400 is the Unified Numbering System designation for 17-4PH stainless steel.
What heat treatment conditions are available?
Common conditions include Solution Annealed, H900, H1025, H1075, H1100, and H1150.
Do you provide custom sizes?
Yes. We supply custom diameters, lengths, machining, cutting, and surface finishing according to customer requirements.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.