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ASTM A213 T9 Alloy tube

ASTM A213 Grade T9 Alloy Steel Seamless Tubes are Carbon Steel Tubes with subsequent addition of chromium, molybdenum and sometimes vanadium are known as chrome moly Tubes. ASTM Specification alloy steel Tubes are used for high temperature service applications. Seamless Alloy Steel Tubes according to ASTM A213 Grade T9 are reheated and furnished in full annlealed, isothermal annealed or normalised quenched and tempered condition. ASTM A213 Grade T9 Alloy Steel Seamless Tubes have a typical chemistry with additions of 8.00-10.00 Chromium and 0.90-1.10 Molybdenum. Bearing minimum tensile strength of 415 Mpa ASTM A213 Grade T9 Tubes have a minimum yield strength of 205 Mpa.

We are manufacturer of ASTM A213 T9 Alloy Steel tubes and supply high quality ASTM A213 T9 Alloy Steel tubes in both large and small quantities worldwide and offer you the best prices in the market.

alloy tubes, ASTM A213, ASTM A213 T9, heat exchanger tubes, superheater tubes

ASTM A213 T9 Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, Heat-Exchanger Tubes.
Grades containing the letter H in their designation have requirements different from those of similar grades not containing the letter H.
These different requirements provide higher creep-rupture strength than normally achievable in similar grades without these different requirements. ASTM A213 T9 tubes shall be made by the seamless process and shall be either hot finished or cold finished, as specified. Grade TP347HFG shall be cold finished. Heat treatment shall be done separately and in addition to heating for hot forming. The ferritic alloy and ferritic stainless steels shall be reheated. On the other hand, austenitic stainless steel tubes shall be furnished in the heat-treated condition. Alternatively, immediately after hot forming, while the temperature of the tubes is not less than the minimum solution temperature, tubes may be individually quenched in water or rapidly cooled by other means. Tension test, hardness test, flattening test, and flaring test shall be done to each tube. Also, each tube shall be subjected to the nondestructive electric test or hydrostatic test.
ASTM A209 Through A213

  • Other standard specifications include the categories of A209 seamless carbon-molybdenum alloy-steel boiler and superheater tubes; A210 seamless medium-carbon steel boiler and superheater tubes and A213 seamless ferritic and austenitic steel boiler, superheater and heat-exchanger tubes. Piping wall thicknesses range from 1/2 inch to 5 inches. A213 grades also have the letter H or M assigned, which changes the composition and specifications for that series.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

Chemical Composition(%) for ASTM A213 T9 Low Alloy Steel

UNS Designation K90941
Carbon 0.15
Manganese 0.30–0.60
Phosphorus 0.025
Sulfur 0.025
Silicon 0.25–1.00
Chromium 8.00–10.00
Molybdenum 0.90–1.10
Other Elements

Mechanical properties for ASTM A213 T9 Low Alloy Steel

Tensile strength(min) 415Mpa
Yield strength(min) 220Mpa
Elongation 30%
Delivery condition annealed


  • Packed in wooden crates, wrapped in plastic, and suitably protected for sea-worthly delivery or as requested.
  • Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.

Pipes are supplied in hexagonal bundles or round bundles tied with steel strip.
Weight of bundle – up to 5000 kg upon request of customer.
Each bundle is furnished with three tags.

Main chemical composition(%) for ASTM A213

Grade UNS Designation C Mn P S Si
T2 K11547 0.10–0.20 0.30–0.61 0.025 0.025B 0.10–0.30
T5 K41545 0.15 0.30–0.60 0.025 0.025 0.5
T5b K51545 0.15 0.30–0.60 0.025 0.025 1.00–2.00
T5c K41245 0.12 0.30–0.60 0.025 0.025 0.5
T9 K90941 0.15 0.30–0.60 0.025 0.025 0.25–1.00
T11 K11597 0.05–0.15 0.30–0.60 0.025 0.025 0.50–1.00
T12 K11562 0.05–0.15 0.30–0.61 0.025 0.025B 0.5
T17 K12047 0.15–0.25 0.30–0.61 0.025 0.025 0.15–0.35
T21 K31545 0.05–0.15 0.30–0.60 0.025 0.025 0.50–1.00
T22 K21590 0.05–0.15 0.30–0.60 0.025 0.025 0.5
T23 K40712 0.04–0.10 0.10–0.60 0.03 0.01 0.5
T24 K30736 0.05–0.10 0.30–0.70 0.02 0.01 0.15–0.45
T36 K21001 0.10–0.17 0.80–1.20 0.03 0.025 0.25–0.50
T91 K90901 0.07–0.14 0.30–0.60 0.02 0.01 0.20–0.50
T92 K92460 0.07–0.13 0.30–0.60 0.02 0.01 0.5
T122 K91271 0.07–0.14 0.7 0.02 0.01 0.5
T911 K91061 0.09–0.13 0.30–0.60 0.02 0.01 0.10–0.50

Mechanical properties for ASTM A213 Low Alloy Steel

Tensile strength(min) 415Mpa
Yield strength(min) 220Mpa
Elongation 30%
Delivery condition annealed

Sunny Steel provide a wide range of steel products as Steel pipes, Seamless tube and seamless pipes, Alloy pipes, Pipe fittings, Composite steel pipe used in the industry, construction etc.



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