Zhenjiang Jianhai Marine Parts Co., Ltd.← Back to home
Marine engine parts

Marine Engine Valve Seat Series

Our marine engine intake and exhaust valve seats are precision-forged from high-strength heat-resistant alloy, with excellent high-temperature strength, oxidation resistance, corrosion resistance and wear resistance. Products are manufactured to marine standards and engine maker requirements, with interchangeability for Zichai, Weichai, Ningdong, Guangchai, MAN and other mainstream models.

Available models include W35, W42, W50, W60, W70 and W80, with multiple specifications for different engine requirements.

High-precision marine engine valve seats and material specifications

Materials

  • Cr-Mo high-alloy structural steel: 42CrMo
  • Si-Cr high-alloy valve steel: 4Cr10Si2Mo
  • Ni-Cr powder alloy steel: CrNi40/60

Hardening processes

  • High Frequency Quenching
  • Hard Alloy Overlay Welding
  • HVOF (High Velocity Oxy-Fuel)

Dimensions & customization

  • Outer Diameter: 50mm - 650mm
  • Inner Diameter: 15mm - 400mm
  • Height: 17mm - 400mm
  • Custom dimensions and structures are available according to customer requirements

Compatibility & supply

Coverage for mainstream domestic and international marine engine brands

We support batch orders, OEM branding and long-term distribution cooperation, and provide product parameters, installation guidance and technical consultation.