Flanges are available in stainless steel 304, 316, and carbon steel C-1018. Monel and other materials are available upon request. Primary weld is "J" groove type; secondary weld is a 45 degree bevel grove. NPSM internal pipe thread will accept NPT and NFS male threads. Please note, the thermowells for use with these flanges must be specified separately. For more information or to make a specified request feel free to contact a Nanmac engineer.