Low Temperature Pipe, Valves, Fittings & Flanges
U.S. Metals is a premier worldwide supplier for Low Temperature Pipe,
Our ability to provide Low Temperature inventory on a project basis is one of our strongest capabilities and is unmatched in our industry.
Turnarounds or outages, planned retrofits or emergency situations, grassroots projects worldwide; U.S. Metals has the experienced staff to assist you on all of your specialty alloy requirements, no matter how detailed the specification, no matter how difficult the situation.
New industry requirements, not an issue. We work closely with agencies like EPRI along with our utility and refining clients to be on the cutting edge of new industry requirements that affect your high energy/high temperature piping systems.
Our inventory is evolving to meet the new specifications that prevent current issues as creep cracking and hardness problems.
Trade NameGrade 1 Low Temp
Grade 6 Low TempGrade 3 Low Temp
Seamless / Welded PipeA/SA333 Grade 1A/SA333 Grade 6A/SA333 Grade 3 Seamless / Welded TubeA/SA333 Grade 1A/SA333 Grade 6A/SA333 Grade 3 Buttweld FittingsA/SA420 Grade WPL6
A/SA420 Grade WPL6A/SA420 Grade WPL3
A/SA350 Grade LF2
A/SA350 Grade LF2
A/SA350 Grade LF3
Forged FittingsA/SA350 Grade LF2A/SA350 Grade LF2A/SA350 Grade LF3 Forged FlangesA/SA350 Grade LF2A/SA350 Grade LF2A/SA350 Grade LF3 PlateA/SA516 Grades 60, 65, 70
A/SA516 Grades 60,65,70
A/SA203 Grade D*
Cast ValvesA/SA352A/SA352A/SA352 Grade LCB:J03003J03003----- Grade LCC:J02505J02505----- Grade LC3:----------J31550
This table provides basic information for procurement of materials for use in low temperature services.
Carbon steel Grades 1 and 6 are impact tested at -50°F. Three and one half nickel Grade 3 material is impact tested for services down to -150°F.
A/SA333 pipe is available dual certified in Grades 1 and 6.
In addition to the materials listed, rolled and welded plate pipe manufactured in accordance with ASTM/ASME Specifications A/SA671 is available for low temperature service.
Plate Specifications A/SA516 Grades 60, 65 and 70 indicating their respective Tensile Strengths in ksi are normally used for the same services as Grades 1 and 6. Three and one half nickel material is manufactured from A/SA203 Grade D plate.
Charpy V-Notch Impact Testing is required.
Supplementary Requirements and Appendices are listed in some of these specifications.
Cast steel valves for low temperature service are normally offered in A/SA352 Grades LCB(65ksi Tensile) and LCC(70 ksi Tensile). Grade LCA(60ksi Tensile) material is listed in Specifications A/SA352, but is not a standard production item for valves.
*Specification A/SA203 Grade D has a Tensile Requirement of 65-85ksi. This meets Grade 3 requirements for the pipe and tube specifications addressed in this table. Grades B, E and F are available for items requiring higher tensile material, such as manufacture of Pressure Vessels.
The specifications listed and described above reflect the common materials required for manufacture and fabrication of items for use in Low Temperature Service.
Refer to ASME B & PV Code Section II for non-identical A/SA requirements.