Comparison of weld stellite vs SPRRAYMET HVOF stellite Alloy PROPERTY WELDING / Cladding HVOFStellite 6 HRC 38-42 40-44 ( Zero dilution)

Thickness to get desired HRc and life

1.3- 4 mm + machining allowance

Typically 250-300 microns is sufficient functionally

Pre and Post treatments

Pre heating / Stress relieving at 600*C

No post coating treatment .

Machining allowance Min 1 mm Buff polish to get even surface OR grinding allowance 100 micron if tolerance is needed

Material Stock on part before

Min 2-5 mm all over Spray on Fully finished part – No distortion

Major applications

All areas where there is no IMPACT load but metal to metal sealing with sliding, friction , contact pressure sealing are necessaryBall valves ball and seat, plug valve , gate valve, butterfly valve disc., valve stem , control valve cage etc

Butter fly valve disc ( STELLITE) ball valve ball 18” (CARBIDE) Slab gate API 6A ( CARBIDE)Other coating materials : Tungsten carbide, chrome carbide, Inconel , SS, Bronze, CeramicSPRAYMET SURFACE TECHNOLOGIES PVT LTD . Bangalore & Pune , INDIA E mail : spraymet@gmail.com , TEL + 91 (080) 28364565 , 9916903701