JB/T 6438-1992
Plasma arc surfacing welding for sealing surface of valves Technical requirements (English Version)
- Standard No.
- JB/T 6438-1992
- Language
- Chinese, Available in English version
- Release Date
- 1992
- Published By
- Professional Standard - Machinery
- Status
- 2011-08
- Replace By
- JB/T 6438-2011
- Latest
- JB/T 6438-2011
- Scope
- This standard specifies the requirements for plasma surfacing of valve sealing surfaces on welders, surfacing materials, commonly used base materials, surfacing processes, quality inspection, defect repair, etc. This standard is applicable to the manufacturing and inspection of plasma arc surfacing drill-based, nickel-based, and iron-based alloy powder materials for sealing surfaces of carbon steel, alloy steel, stainless steel, power station, and petrochemical valves. Manufacturing and Inspection.
JB/T 6438-1992 history
- 2011 JB/T 6438-2011 Technical requirements for plasma arc overlaying welding for valve sealing surface
- 1992 JB/T 6438-1992 Plasma arc surfacing welding for sealing surface of valves Technical requirements
