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Home > Industrial Equipment & Components > Industrial Customized Service > Machining Service > CNC Turning S355JR C45E Carbon Steel Guide Pins With Nitrate Hardened Finish

CNC Turning S355JR C45E Carbon Steel Guide Pins With Nitrate Hardened Finish

CNC Turning S355JR C45E Carbon Steel Guide Pins With Nitrate Hardened Finish photo-1

CNC Turning S355JR C45E Carbon Steel Guide Pins With Nitrate Hardened Finish photo-2

US$ 8.8 - 28 MOQ: 1 Piece

Key Specifications

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Material:

Steel

Application:

Fastener, Auto and Motorcycle Accessory, Machinery Accessory

Surface Treatment:

Other

Contact Supplier Request Quote Chat Now

Dongguan Bomei Precision Machining Co., Ltd

Payment & Shipping

Payment Methods:

Port of Shipment:

Shenzhen

Delivery Detail:

20 days

Product Details
Company Profile
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Material Steel

Application Fastener, Auto and Motorcycle Accessory, Machinery Accessory

Surface Treatment Other

Standard GB, EN, API650, China GB Code, JIS Code, TEMA, ASME

Production Type Mass Production

Machining Method CNC Turning

High-precision CNC-turned guide pins crafted from S355JR and C45E carbon steel with nitrogen hardening—delivering exceptional surface wear resistance, core toughness, and dimensional stability for guiding and positioning in industrial automation.

Parameter	Key Details
Material	S355JR carbon steel: High yield strength (≥355 MPa), good toughness, cost-effective for general industrial guide pins; C45E carbon steel: Higher carbon content for enhanced hardenability, ideal for high-wear guide applications; both undergo nitrogen hardening (surface hardness 55–60 HRC, core remains ductile)
Processing	CNC precision turning (single/multi-spindle for mass production), drilling (axial holes for lubrication), chamfering, deburring; nitrogen hardening (surface depth 0.2–0.6mm); grinding (for pin tip precision); 100% CMM inspection; straightness testing for guiding accuracy
Tolerance & Precision	Shaft diameter tolerance h6 (ISO standard for tight guiding fit); length tolerance ±0.01mm; concentricity ≤0.005mm (prevents jamming during linear movement); straightness ≤0.003mm/m; surface roughness Ra 0.4–0.8μm (reduces friction)
Surface Finish	Nitrogen-hardened surface (wear-resistant, corrosion-resistant); anti-rust oil coating (protects during storage/transport); optional black oxide finish (enhances corrosion resistance and aesthetic uniformity); passivation for short-term outdoor use
Mechanical Properties	S355JR: Core tensile strength ≥510 MPa, elongation ≥21%; C45E: Core tensile strength ≥600 MPa, elongation ≥14%; operating temperature -20°C to 250°C; fatigue resistance ≥10⁶ cycles (suitable for high-frequency guiding operations)
Compatibility	Fits stamping dies, injection molds, automated assembly lines, CNC machine tools, and conveyor positioning systems; compatible with bronze/steel guide bushings; supports linear guiding, workpiece positioning, and component alignment

Application Scenarios

Stamping & Molding Equipment: Nitrogen-hardened guide pins for stamping dies and injection molds—resists wear from repeated die closing/opening, ensures precise alignment of mold halves.
Automated Assembly Lines: Precision guide pins for workpiece positioning—tight tolerance guarantees consistent part placement, reducing assembly errors in electronics and automotive component production.
CNC Machine Tools: C45E guide pins for tool changers and spindle alignment—high surface hardness withstands frequent tool changes, maintaining machining accuracy.
Conveyor Sorting Systems: S355JR guide pins for parcel/part sorting rails—tough core resists impact from misaligned parts, surface wear resistance extends service life.
Packaging Machinery: Tapered-tip guide pins for carton folding and sealing mechanisms—smooth surface reduces friction, ensuring smooth, continuous packaging operations.