17-4PH Stainless Steel Round Bar Price

If you are looking for high-strength, corrosion-resistant stainless steel bars, 17-4PH is a precipitation-hardening stainless steel that offers high strength, high hardness, and durability. GNEE provides high-quality 17-4PH stainless steel round bars with reliable quality and competitive prices. Our products are widely used in industries such as aerospace, chemical engineering, marine engineering, and precision machinery.

 

What is 17-4PH Stainless Steel?
17-4PH stainless steel is a martensitic precipitation-hardening stainless steel, also known as 630 stainless steel. By adding elements such as copper (Cu) and niobium/columbium (Nb/Cb), and through heat treatment (aging), a copper-rich phase can precipitate at relatively low temperatures (such as 480-620°C), significantly improving its mechanical properties. Its yield strength can reach 1100-1300 MPa, while also possessing moderate corrosion resistance. It is easy to process and form, and its strength can be greatly increased after heat treatment. It is widely used in critical components requiring high strength and good corrosion resistance in aerospace, petrochemical, marine engineering, pumps and valves, fasteners, and other industries.

 

17-4PH Stainless Steel Round Bar Specifications

Property	Specification / Range
Grade	17-4PH / UNS S17400
Standards	ASTM A564 / AMS 5643 / EN 10088-3
Diameter Range	6 mm – 300 mm (1/4" – 12")
Length Options	1000 mm, 2000 mm, 6000 mm; custom lengths available
Surface Finish	Hot Rolled (HR), Cold Drawn (CD), Machined, Polished
Mechanical Properties (H900 Condition)	Tensile Strength: 1100–1300 MPa; Yield Strength: 1030–1200 MPa; Elongation: 8–10%; Hardness: 44–46 HRC
Corrosion Resistance	Good in oxidizing environments; moderate in marine atmospheres
Heat Treatment	Solution Annealed + Precipitation Hardening (H900, H1025, H1075, H1150)
Testing	PMI/Positive Material Identification, Dimensional Check, Hardness Test, UT/RT NDT optional
Applications	Aerospace components, pump shafts, fasteners, valves, chemical processing equipment

 

 

What is the typical price of 17-4PH stainless steel round bars?
As of early December 2025, the market price of 17-4PH stainless steel (ASTM A564 / EN 1.4542) varies depending on the form and supply conditions. Plate (3–20 mm thick) is approximately USD 2,800–3,500/ton, and bar stock (Ø20–200 mm) is USD 3,200–4,000/ton. The market is affected by fluctuations in the cost of nickel, copper, and scrap steel, with recent weekly fluctuations of 3–5%. Discounts of 3–8% are available for large-volume purchases.

 

Standard packaging, moisture-proof packaging, steel strapping, and protected with wooden crates.

Custom marking available (grade, heat number, barcode).

Payment methods: T/T, L/C, or other methods agreed upon by both parties.

Fast delivery: 7-12 days, depending on order quantity.

FAQ

Which heat treatment condition should I choose?
H900 is standard for maximum strength; H1025/H1075/H1150 can be used for balance of toughness and corrosion resistance.

Can 17-4PH bars be machined easily?
Yes, especially in the solution-annealed condition; machining after aging requires optimized tooling.

Is GNEE able to supply large diameters?
Yes, we provide bars up to 300 mm and can produce custom lengths.

Do you provide material test certificates (MTC)?
Yes, EN10204 3.1 MTC is provided for each batch.