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Product Description

We supply 632 stainless steel bars, a semi-austenitic precipitation-hardening stainless steel that can achieve tensile strengths of up to 1310 MPa through aging heat treatment. This material combines high strength, good corrosion resistance, and excellent fatigue performance, making it particularly suitable for applications requiring a balance of strength and corrosion resistance, such as aerospace, precision instruments, and high-stress structural components.
Core Features
High-Strength Precipitation Hardening: Achieves a balance of high strength and toughness through solution + aging heat treatment.
Good Corrosion Resistance: Maintains better corrosion resistance than martensitic stainless steels in both the austenitic state and after hardening.
Excellent Fatigue and Elastic Properties: High fatigue strength and elastic modulus, suitable for springs, fasteners, and high-cycle load components.
Processing Adaptability: Can be machined and cold-formed in the solution-treated state, followed by strengthening through aging treatment.
Applications
Aerospace fasteners, spring components, precision shafts, medical device structural parts, petrochemical valve stems, and high-stress mechanical connectors.
We offer round, square, and hexagonal bars, supporting custom cutting, heat treatment state customization (solution-treated/aged), surface fine grinding, and non-destructive testing. Products comply with standards such as AMS 5644, ASTM A564, and GB/T 1220, and are accompanied by complete heat treatment reports and material certifications.

Product Show

Crafted from premium austenitic, martensitic, and duplex grades (304, 316, 410, 2205, etc.), our stainless steel bars deliver exceptional corrosion resistance, high strength, and precise machining performance. Available in round, square, hexagonal, and flat shapes with hot-rolled or cold-finished surfaces, these bars comply with ASTM A276, A479, and international standards. Ideal for machining parts, automotive components, construction hardware, and industrial tools. Custom sizes and grades supported.


Manufactured using precision hot rolling and cold drawing processes, our stainless steel bars undergo controlled annealing and straightening to ensure uniform mechanical properties and dimensional stability. Equipped with laser micrometers (±0.05mm tolerance) and ultrasonic testing for defect detection, we guarantee consistent quality in round, square, hexagonal, and flat shapes. Compliant with ASTM A276/A479 and international standards. Custom sizes and material grades (304, 316, 410, 2205, etc.) are supported.


In order to ensure product quality, we will arrange professional personnel to check product quality, packaging, weight, hardness, etc., according to customer requirements of product specifications, looking for high-quality and cheap cooperative factories in China, to provide customers with one-stop procurement services and quality assurance.


Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation. Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.

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