ASTM A564 17-7PH Stainless Steel Round Bar
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What is ASTM A564?
ASTM A564 is the standard specification for hot-rolled and cold-finished age-hardening stainless steel bars and shapes, covering various forms like rounds, squares, hexagons, angles, and tees, used for parts requiring high strength, corrosion resistance, and high-temperature performance, often seen in aerospace, oil & gas, and marine applications, with common grades including Type 630 (17-4PH).
What is ASTM A564 17-7PH hot-rolled round bar?
ASTM A564 17-7PH stainless steel round bar is a semi-austenitic precipitation-hardening steel known for its high strength, good hardness, moderate corrosion resistance, and excellent fatigue strength. It is commonly used in aerospace and other industries requiring high-performance parts, such as springs and fasteners. This material is available in various forms, but is typically supplied as round bars and heat-treated to achieve high strength and minimal distortion.
ASTM A564 17-7PH stianless steel rods Specifications
| 1. Product: | ASTM A564 SUS 631 17-7pH Stainless Steel Round Bar for Machines |
| 2. Steel type: | * American name: AISI 631, also known as 17-7PH |
| * Chinese name: 00Cr17Ni4Cu4Nb | |
| 3. Standard: | ASTM A564 |
| 4. Diameter: | From Ø1/4'' to Ø16'' ( Diameter: 6mm~400mm ) |
| Such as Ø1'', Ø2'', Ø2.5'', Ø3'', Ø3.5'', Ø4'', Ø4.5'', Ø4.5'', Ø5'',Ø6'', Ø7'', Ø8'' | |
| 5. Length: | 1~ 8meters |
| 6. Surface: | Bright |
| 7. Diameter tolerance: | H9, H11, H13, K9, K11, K13 etc…as per clients' request etc |
| 8. Length tolerance: | 0/+50mm |
| 9. Finishing: | Solution treated + age hardening heat treated ( H900, H1100, H1150 etc ) |
| 10. Feature of 631: | High Tensile strength, high hardness after heat treated. |
| 11. Mechanical property: | T.S. (Rm): 1015Mpa, Y.S. (Rp0.2): 906Mpa, EL (A5):17.1%, Z:60.3%, Hardness(HRC): 34.5 |
| 12. Application: | * Shipbuilding industry, marine shaft, propeller shaft, rudder shaft, boat shaft, vessel shaft, |
| * pump shaft, machine-made industry, valve parts, paper mill equipment. | |
| 13. Delivery time | Generally within 25 days, as per the q'ty. |
| 14. Certificate: | ISO, BV, TUV, SGS, mill test certificate |
| 15. Package: | Good quality & fumigated wooden box, can better protect the bars. ( See pictures below ) |
SUS631 stainless steel Chemical composition
| Grade | C | Si | Mn | P | S | Ni | Cr | AL | CU |
| SUS631 | ≤0.09 | ≤1.00 | ≤1.00 | ≤.0.035 | ≤.0.030 | 6.50~7.75 | 16.00~18.00 | 0.75~1.50 | ≤0.50 |
Available Conditions
GNEE provides 17-7PH stainless steel in the following conditions to meet diverse application requirements:
Condition A: Annealed (solution treated)
Condition C: Cold worked
Condition CH900: Cold worked and aged at 900°F (482°C)
Condition RH950: Refrigeration hardened and aged at 950°F (510°C)
Condition TH1050: Transformation hardened and aged at 1050°F (565°C)
Custom dimensions, conditions, and surface finishes are available to meet your specific requirements. Material can be supplied with precision cut lengths and burr-free ends upon request.
Our Service
| 1 | Free samples will be available for most of the products |
| 2 | 24 hours online to ensure your inquiry will be replied within 12 hours |
| 3 | Most products can be delivered within 7 days after order |
| 4 | Small trial order can also be accepted |
| 5 | Customized Size & Surface Treatment as your requirement |
| 6 | Quality Inspection---We can provide MTC , PMI inspection , and SGS inspection or other third Party Inspection . |
| 7 | If you are not sure about what exactly you need - feel free to contact us anytime and get professional assistance from us |
