Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
                                                                                                           
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23 Years
Since 2003
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Customized Tungsten Steel Round Bar for Hard Alloy Punching Pin | 89-92 HRA Hardness, 4000MPa Strength

Price Negotiable
Price: Negotiable
MOQ: 1 piece
Delivery Time: 15~45 Days
Brand: Sanxin
Product Description
Customized Tungsten Steel Round Bar for Hard Alloy Punching Pin
Product Overview

Our customized tungsten steel round bars are engineered for hard alloy punching pins used in precision stamping applications. These cemented carbide components combine high-melting-point metal carbides with cobalt binder through advanced powder metallurgy processes.

Material Composition & Properties

Cemented carbide is manufactured from metal carbide powders including tungsten carbide, titanium carbide, tantalum carbide, and vanadium carbide, combined with cobalt binder. This composition delivers exceptional hardness and wear resistance for demanding industrial applications.

Parameter Specification
Cobalt Content 10% - 12%
Density 14.0 - 14.5 g/cm³
Hardness 89 - 92.0 HRA
Grain Size 0.6 - 1.2 μm
Bending Strength 4000 MPa
Modulus of Elasticity 490 GPa
Thermal Expansion Coefficient 5.4 × 10⁻⁶/°C
Applications & Performance

Carbide insert pins, also known as tungsten steel insert pins and hard alloy punching pins, are precision components manufactured from hard alloy rods. They feature high precision, exceptional hardness, and superior bending strength, making them ideal for:

  • Hardware and electrical processing industries
  • Stamping die applications for material separation
  • Plastic deformation processes for part manufacturing
  • Electronic ceramic injection molds
Quality Assurance & Precision

Our manufacturing process ensures dimensional tolerances of ±0.001 and surface finish requirements of 0.2 μm. We maintain strict control over mass production consistency, which directly impacts mold longevity and product dimensional accuracy.

Key Advantages
  • High hardness (89-92 HRA) for extended service life
  • Superior bending strength (4000 MPa)
  • Corrosion resistance and rust prevention
  • Custom dimensions and specifications per drawings
  • Mass production consistency with ±0.002 tolerance
  • Ideal for electronic ceramic precision molds
Manufacturing Process

Our comprehensive production workflow includes:

  • Thorough ingredient mixing and pulverization
  • Drying, sieving, and forming agent addition
  • Mixed granulation and pressing operations
  • Low-pressure sintering and blank inspection
  • Non-destructive ultrasonic testing
  • EDM/wire cutting, grinding, and polishing
  • Final inspection, marking, and packaging
Product Images
Customized tungsten steel round bar for hard alloy punching pin product view Precision hard alloy punching pin manufacturing sample

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
Location No. 8, Middle School Road, Baiguan Town, Lusong District, Zhuzhou, Hunan, China
Contact Person Anne Zhang

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