rate contract of chain and chain spares , forged block type chain for irc (as per drawing) pitch- 229mm braking strength minimum – 80000kgs material: - link-en-9 (hardness - 15+5 hrc) pin- ss-410 (hardness-50+5 hrc) bush-ss-410 (hardness-45+5 hrc) , cane carrier chain rollers (as per drawing) material- en-8d hardness- 40+5 hrc , cane carrier chain pin with castle nut (as per drawing) material- en-353 hardness- 55+5 hrc , cane carrier chain bush (as per drawing) material- en-353 hardness- 50+5 hrc , cane carrier attachment plate with link (as per drawing) , main rack carrier & irc pin with nylock nut (as per drawing) material- ss-410 hardness-50+5 hrc , main rack carrier & irc bush (as per drawing) material- ss-410 hardness-45+5 hrc , main rack carrier & irc attachment plate with forged block link (as per drawing) , i.d of bush should be same as per drawing. re-bushing with pin & nut of forged block type irc chain (rate required per meter basis) pich-229 mm material of bush-ss-410 bush hardness- 45+5 hrc material of pin- ss-410 pin hardness- 50+5 hrc thickness of bush may be increase but below as per drawing not acceptable. , bagasse elevator & main bagasse carrier rollers (as per drawing) material- en-8d hardness- 40+5 hrc , bagasse elevator & main bagasse carrier bush (as per drawing) material- en-353 hardness- 50+5 hrc , bagasse elevator & main bagasse carrier pin with castle nut (as per drawing) material- en-353 hardness- 55+5 hrc bagasse elevator & main bagasse carrier rack attachment link (as per drawing)