저온 볼팅

  • ASTM A320 Grade L7 low-temperature alloy steel heavy hex bolts

    ASTM A320 등급 L7 합금강 헤비 육각 볼트

    ASTM A320 Grade L7 alloy steel heavy hex bolts are impact-tested, quenched-and-tempered fasteners for low-temperature pressure vessels, 밸브, 플랜지, fittings and industrial equipment.

  • ASTM A320 Grade L7M hardness-controlled low-temperature heavy hex bolts

    ASTM A320 등급 L7M 합금강 헤비 육각 볼트

    ASTM A320 Grade L7M alloy steel heavy hex bolts combine low-temperature impact requirements with restricted hardness for pressure-equipment joints where the project specifies L7M.

  • ASTM A320 Grade L43 AISI 4340 low temperature stud bolts

    ASTM A320 L43 저온 스터드 볼트

    ASTM A320 Grade L43 high-strength low-temperature alloy-steel stud bolts, commonly based on AISI 4340 화학, with specified impact testing and documentation.

  • ASTM A320 Grade L7 low temperature alloy steel stud bolts

    ASTM A320 L7 저온 스터드 볼트

    ASTM A320 Grade L7 alloy-steel stud bolts for low-temperature flange joints, supplied with specified impact testing, matching nuts and traceable documentation.

  • ASTM A320 Grade L7M low temperature controlled hardness stud bolts

    ASTM A320 L7M 저온 스터드 볼트

    ASTM A320 Grade L7M low-temperature, controlled-hardness alloy-steel stud bolts with matching heavy hex nuts, impact testing and traceable documentation.