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ASME SA213/ASTM A213 T9 Alloy Steel Seamless Tube for Boiler, Superheater and Heat Exchanger Application
ASTM A213 T9 alloy steel seamless tube is a seamless steel tube made of ferritic and austenitic alloy steel. Follow ASTM A213/A213M "Specification for Seamless Steel Tubes of Iron and Austenitic Alloy Steel for Boiler, Superheater, and Heat Exchanger". At the same time, the product must also comply with the requirements of TSG D7002 "Type Test Rules for Pressure Pipeline Components".
ASTM A213 T9 alloy steel seamless tubes have characteristics such as high strength, high toughness, and high corrosion resistance. Its tensile strength is ≥ 415MPa, yield point is ≥ 205MPa, elongation or elongation at break is ≥ 30%, and hardness HBW is ≤ 179. These properties enable ASTM A213 T9 tubes to operate stably for a long time in harsh environments such as high temperature, high pressure, and strong corrosion.
ASTM A213 Alloy Steel Chemical Composition:
GRA. | UNS. | ASTM A213 Alloy Steel CHEMICAL COMPOSITION % | ||||||
---|---|---|---|---|---|---|---|---|
C | MN | P | S | SI | CR | MO | ||
T5 | K41545 | 0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 | 4.00-6.00 | 0.45-0.65 |
T9 | K90941 | 0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 |
T11 | K11597 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
T22 | K21590 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 | 1.90-2.60 | 0.87-1.13 |
The production process of ASTM A213 T9 alloy steel tubes mainly includes steps such as steelmaking, rolling, and heat treatment:
ASTM A213 T9 alloy steel tubes are widely used in various industrial fields that require high temperature and high pressure environments due to their high strength, good creep resistance, and stability at high temperatures. Here are some specific application scenarios: