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Free Cutting Steel Tube/Bar

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Product Description

Free Cutting Steel Tube
Free cutting steel tubes are made from high-machinability steel grades, combining good strength with excellent cutting performance. These tubes are suitable for precision turning, drilling, or threading processes and are ideal for producing high-precision cylindrical parts.
Features
Superior machinability with easy chip removal
Stable mechanical strength and dimensional consistency
Suitable for CNC and automatic machine tools
Can be heat-treated, plated, or polished as required
Applications
Widely used in hydraulic and pneumatic systems, automotive precision parts (e.g., injectors, bushings), mechanical fittings, and CNC machined components requiring tight dimensional tolerances.
Specification
Material Grade
12L14, 11SMnPb30, SUM22L, C3602
Outer Diameter (OD)
6mm – 120mm
Wall Thickness
1mm – 12mm
Length
1000mm – 6000mm (can be cut to size)
Processing Method
Cold Drawn / Bright Annealed / Precision Drawn
Surface Condition
Bright, Smooth, or Pickled
Tensile Strength
350–550 MPa
Hardness
100–170 HB
Standard
ASTM A519, EN 10305-1, JIS G3445
Application Standard
Suitable for CNC machining, hydraulic fittings, precision parts
Certification
ISO 9001 / Mill Test Certificate / SGS Inspection

 

Product Description
Free Cutting Steel Bar
Free cutting steel bars are specially designed materials that offer superior machinability. By adding elements such as sulfur, lead, or phosphorus, the steel’s cutting performance and chip-breaking ability are improved, enabling high-speed and precise machining. They are widely used in automatic lathes and CNC machining centers for mass production of precision components.
Features
Excellent machinability and smooth surface finish
Reduced tool wear and improved cutting efficiency
Uniform dimensions and good straightness
Available in hot rolled, cold drawn, or peeled condition
Applications
Used for automatic lathe parts, precision fasteners, connectors, shafts, valve components, and automotive accessories requiring high machining efficiency and dimensional accuracy.
Specification
Material Grade
11SMn30, 12L14, SUM24L, 1215, EN1A, 9SMn28, C3604
Diameter Range
3mm – 200mm (Common: 6mm – 80mm)
Length
1000mm – 6000mm (customized length available)
Tolerance
h9, h10, h11 or as required
Surface Finish
Hot Rolled / Cold Drawn / Peeled / Polished
Mechanical Properties
Tensile Strength: 370–570 MPa; Hardness: 120–180 HB
Delivery Condition
Hot Rolled / Cold Drawn / Annealed / Straightened
Standard
ASTM A108, EN 10087, JIS G4804
Certification
ISO 9001 / SGS / Mill Test Certificate

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