ASTM A106 Gr.B Pipes
ASTM A106 Gr.B pipes are seamless pipes known for their seamless construction and pressure capabilities.
ASME SA-556M C2 refers to a grade of seamless cold-drawn carbon steel tubes used for tubular water heaters in accordance with the ASME SA-556M standard.
These tubes are specifically designed for high-pressure applications and are commonly used in feedwater heater systems.
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.
The specification is similar to ASTM A556/A556M, which also covers seamless cold-drawn carbon steel tubes for use in tubular feedwater heaters, including bending into the form of U-tubes if specified.
ASME SA-556/SA-556M is a common standard specification for seamless cold-drawn carbon steel feedwater heater tubes. It covers minimum-wall-thickness.
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 Seamless Steel Tube 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.
Cold-drawn tubes shall be heat treated after the final cold-draw pass at a temperature of1200°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].
| Grade | C | Si | Mn | P | S |
| SA-556M C2 | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 |
| 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 |
When requested in the purchase order, a product analysis will be made by our from one tube or billet per heat.
ASTM A556 C2 U-bent steel tubes are seamless cold-drawn carbon steel tubes that are specifically designed for use in high-temperature heater systems, such as feedwater heaters.
These tubes undergo a cold-drawing process to ensure dimensional accuracy and a smooth surface finish.
The U-bend configuration of these tubes allows for efficient heat transfer in applications where space is limited. The U-bend shape enables the tubes to be easily installed and connected within the heater system.
Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.
Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.
Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.
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Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.
The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.
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