Harsh Steel Stocks, Manufacturers and Exports Monel alloy 400, K500 capillary pipes and tubes along with Monel alloy 400, K500 seamless and welded pipes, Monel alloy 400, K500 heat exchanger tubes, Monel alloy 400, K500 finned pipes and tubes, Monel alloy 400, K500 U tubes in standards of ASTM B161 - ASME SB161, ASTM B165 - ASME SB165, ASTM B167 - ASME SB167, ASTM B407 - ASME SB407, ASTM B423 - ASME SB423, ASTM B622 - ASME SB622, ASTM B725 - ASME SB725, ASTM A165 -ASME SB165, ASTM B619 - ASME SB619 as per ASME B36.10 & ASME B36.19.