[MW:32901] shall we refer ASME sec VIII div-1 for soaking hours of normalising & tempering process-reg

Dear friends,

We used to get A217 - WC6 & A217 -WC9 casting from foundry with  normalising & tempering conditions, these details are given the MTC of the product. while checking the soaking hours for normalising & tempering process, they used to follow 4 hours for all 100 to 200 thickness jobs, when as asked to maintain 5 hours for 125mm, 6 hours for 150mm & 8 hours for 200mm thickness, they refused to increase the soaking hours from 4 hours and asking the reference standard for soaking hours, in this situation shall we refer ASME sec VIII div-1 for soaking hours w.r.to P nos? kindly help me in this regards.      .    

Regards,

Sankaran.SP

Coimbatore, India.