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Product Description

We supply 420F series stainless steel bars, a sulfur-enhanced free-machining martensitic stainless steel designed for high-volume machining applications. This grade offers improved machinability, good hardness after heat treatment, and moderate corrosion resistance, making it suitable for parts requiring extensive cutting, drilling, or threading.
Core Features
Excellent Machinability: Sulfur addition promotes chip breaking and extends tool life during high-speed machining operations.
Heat-Treatable Hardness: Can be hardened to achieve high surface hardness and wear resistance through heat treatment.
Moderate Corrosion Resistance: Suitable for general-purpose applications in mild atmospheric and dry environments.
Cost-Effective Production: Enables efficient manufacturing of precision components with reduced machining time and cost.
Applications
Ideal for automatic screw machine parts, fittings, fasteners, valve components, surgical instruments, and cutlery requiring good machinability and hardness.
We provide bars in rounds, squares, and hexagons, with options for heat treatment, precision cutting, grinding, and surface finishing. Full material certification compliant with ASTM A582, EN 10088-3, JIS G4303, and related standards is included.

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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