ASME SA-556M Grade C2 Seamless Cold-Drawn Tubes

Short Description:

SA-556M C2 is a pearlescent carbon steel used for tubular water heater in ASME SA-556m standard, which is divided into straight tubes and tubes which are required to be bent into "U" shape.

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ASME SA-556M Grade C2 Seamless Cold-Drawn Tubes
 
 
SA-556M C2 is a pearlescent carbon steel used for tubular water heater in ASME SA-556m standard, which is divided into straight tubes and tubes which are required to be bent into "U" shape.



 
SA-556M C2 is close to 20MnG and 25MnG in GB5310 in China. It is mainly used for manufacturing 300, 600MW and other high-pressure heaters. In China, the annual demand of SA-556M C2 steel tubes are about 10000 tons.

 
ASME SA-556M Grade C2 Seamless Cold-Drawn Tubes Quick Details
Manufacture:Seamless process
Outer diameter: 12.7mm-38.1mm
Wall thickness: 0.5mm-3.0mm
Ends: Plain End, Beveled End, Treaded
 
Additional Info
Port of Shipment: Tianjin, China
Payment Terms:T / T, LC
Delivery: 7-15 days after payment
Surface: Tubes will be varnished to prevent rust.
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden) or as required
 
 
 
Technical standard requirements
 
Chemical composition of  SA-556M Grade C2 steel tubes
Grade C Si Mn P S
SA-556M C2 ≤0.30 ≥0.10 0.29-1.06 ≤0.035 ≤0.035
 
Mechanical properties of SA-556M Grade C2 steel tubes
 Mechanical properties Grade C2
Tensile strength, min, ksi [MPa]  70 [480]
Yield strength, min, ksi [MPa] 40 [280]
Elongation in 2 in. or 50 mm, min, % (longitudinal) 30
Hardness HR B 89
 
 
 
Manufacture
SA-556M Grade C2 Tubes shall be made by the seamless process and shall be cold drawn.
 
 
Heat Treatment:
Cold-drawn tubes shall be heat treated after the final cold-draw pass at a temperature of 1200°F [640°C] or higher to ensure ductility satisfactory for rolling into tube sheets and to meet mechanical properties as specified.
 
If stress-relief anneal of the U-bends is specified, the anneal shall consist of heating the bent portion within a range of 1100 to 1200°F [585 to 640°C].
 

   

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