... 1629 St37, RST37.2 St52 b)Stainless Steel: ASTM/ASME SA403 304,304L ,316, 316L, WP304L, 3 WP316 ... SUS304, SUS304L, SUS316, SUS316 c) Alloy Steel: ASTM/ASME SA234 WP12, WP11,WP22, WP5, WP9, WP91.ASTM ... , c) Figure & Blind, Swivel,long welding neck flanges d)as per buyers’ special requirements.7. Standard:a ... 2544 2282 6091-6093 etc8.Pressure Grade a) ASME/ANSIB16.5 150LBS 300LBS 400LBS 600LBS 900LBS 1500LBS ...