ASTM A213 T22
ASTM A213 T22 - industrial steel pipe
ASTM A213 T12 seamless alloy pipes are professional heat-resistant alloy tubes ideal for high-temperature and high-pressure working conditions in power plants and boilers.
1.25Cr–0.5Mo low alloy steel tubes for high-temperature boiler and heat exchanger service.
ASTM A213 T12 seamless tubes are designed for high-temperature applications such as boilers, superheaters, reheaters and heat exchangers. The 1.25Cr–0.5Mo alloy system provides good creep strength, oxidation resistance and fabricability, making T12 a cost-effective choice for power, petrochemical and refinery projects.
Typical marking of ASTM A213 T12 seamless alloy pipes
| Element | Content |
|---|---|
| Carbon (C) | 0.05–0.15 |
| Manganese (Mn) | 0.30–0.61 |
| Phosphorus (P) | ≤0.025 |
| Sulfur (S) | ≤0.025 |
| Silicon (Si) | ≤0.50 |
| Chromium (Cr) | 0.80–1.25 |
| Molybdenum (Mo) | 0.44–0.65 |
| Nickel (Ni) | — |
| Other Elements | — |
| Tensile Strength (MPa, min) |
Yield Strength (MPa, min) |
Elongation (%, min) |
Delivery Condition |
|---|---|---|---|
| 415 | 220 | 30 | Annealed / Normalized & Tempered |
ASTM A213 T12 tubes are manufactured in accordance with:
T12 tubes can be supplied to project-specific requirements, including:
ASTM A213 T12 is widely regarded as a reliable, economical alloy for moderate high-temperature service. Proper material selection and heat treatment are essential to ensure long-term performance in creep-limited applications.
Our ASTM A213 T12 tubes are manufactured using advanced processes such as hot rolling and cold drawing to ensure precision and high-quality standards. Rigorous quality control measures, including non-destructive testing, are implemented to verify the integrity and performance of the tubes.
The high-temperature and high-pressure resistance make these tubes ideal for use in power generation, petrochemical plants, and other demanding environments.
ASTM A213 T12 tubes are widely used in various industrial applications, such as:
ASTM A213 T12 Tube is made up of a material composition of carbon, manganese, phosphorus, sulfur, silicon, 0.8% chromium and 0.44% molybdenum minimum. The material has good corrosion resistance, strength and high heat tolerance.
Grades containing the letter H have enhanced creep-rupture strength compared with non-H grades.
Typical sizes: 1/8 in. [3.2 mm] ID to 5 in. [127 mm] OD; wall thickness 0.015–0.500 in. [0.4–12.7 mm].
Definitions of terms used in this specification shall refer to ASTM A941.
Products shall conform to ASTM A1016/A1016M. In case of conflict, this specification shall prevail.
Tubes shall be made by the seamless process and supplied as hot finished or cold finished. Grade TP347HFG shall be cold finished.
Reheated for heat treatment separately from hot forming, in accordance with Table 3.
Furnished in heat-treated condition. May be direct-quenched immediately after hot forming if temperature ≥ minimum solution treatment temperature.
With years of expertise, we provide a wide range of steel tube processing services. From basic sawing and machining to complex bending and upsetting operations, we support you at every stage of your project.
Our capabilities include eccentricity reduction and concentricity improvement through turning and grinding. We specialize in creating complex geometries using rotary swaging and axial forming, and offer property modifications through partial heat treatment to meet your exact requirements.
A range to meet your needs
High-quality steel solutions for diverse mechanical engineering applications – reliable, precise, and built for performance.
Premium steel products for demanding construction projects – from bridges to offshore structures, built to last.
Versatile components for the automotive industry – precision, quality, and processing expertise for every application.
Robust tubes for plant engineering and energy systems – designed for extreme conditions and long-term efficiency.
Versatile solutions for modern infrastructure – supporting reliable supply networks and large-scale construction projects.
Versatile solutions for hydraulic systems – durable, pressure-resistant, and engineered for maximum reliability.
| Condition | Typical Application |
|---|---|
| High Temperature | Boilers, superheaters, steam headers |
| Low Temperature | Cryogenic processing systems |
| High Pressure | Power & process piping |
| Corrosive Media | Chemical & petrochemical plants |
| Creep Service | Thermal power stations |
| Product | Specification |
|---|---|
| Seamless Pipes | ASTM A335 P1 / P5 / P9 / P11 / P22 / P91 |
| Butt Weld Fittings | ASTM A234 WP1 / WP5 / WP9 / WP11 / WP22 / WP91 |
| Forged Fittings & Flanges | ASTM A182 F1 / F5 / F9 / F11 / F22 / F91 |
Sunny Steel supplies alloy steel piping systems worldwide, supporting projects that demand certified materials, full traceability and long-term operational reliability.
ASTM A213 T12 Tube is made up of a material composition of carbon, manganese, phosphorus, sulfur, silicon, 0.8% chromium and 0.44% molybdenum minimum.
Steel pipe delivery status(condition): cold / hard (BK), cold / soft (BKW), after cold stress relief annealing (BKS), annealing (GBK), normalized (NBK).
| Term | Symbol | Explanation |
|---|---|---|
| Cold-finished/hard (cold-finished as-drawn) | BK | No heat treatment after the last cold-forming process. The tubes therefore have only low deformability. |
| Cold-finished/soft (lightly cold-worked) | BKW | After the last heat treatment there is a light finishing pass (cold drawing). With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits. |
| Annealed | GBK | After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum. |
| Normalized | NBK | The tubes are annealed above the upper transformation point in a controlled atmosphere or under vacuum. |
The general cold strip mills, volume should go through continuous annealing (CAPL unit) to eliminate cold hardening and rolling stress, or batch annealing reach the mechanical properties of the corresponding standard specifies. Cold rolled steel surface quality, appearance, dimensional accuracy better than hot-rolled plate, and right-rolled thin product thickness is about 0.18mm, so the majority of users favor.
Cold rolled steel coil substrate products deep processing of high value-added products. Such as electro-galvanized, hot dip galvanized, electro-galvanized fingerprint resistant, painted steel roll damping composite steel, PVC laminating steel plates, etc., so that the excellent quality of these products has a beautiful, high resistance to corrosion, has been widely used.
Cold rolled steel coil finishing after annealing, cut the head, tail, trimming, flattening, smooth, heavy volume, or longitudinal clipboard. Cold-rolled products are widely used in automobile manufacturing, household electrical appliances, instruments, switches, buildings, office furniture and other industries. Steel plate strapping package weight of 3 to 5 tons. Flat sub-volume typically 3 to 10 tons / volume. Coil diameter 6m.
Bare packing/bundle packing/crate packing/wooden protection at the both sides of tubes and suitably protected for seaworthy delivery or as requested.
There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method to work: prevent rusting and sea transportation security.
Our packing can meet any needs of the customers.
Commonly used alloying elements and their effects are listed in the table given below.
| Alloying Elements | Effect on the Properties |
|---|---|
| Chromium | Increases Resistance to corrosion and oxidation. Increases hardenability and wear resistance. Increases high temperature strength. |
| Nickel | Increases hardenability. Improves toughness. Increases impact strength at low temperatures. |
| Molybdenum | Increases hardenability, high temperature hardness, and wear resistance. Enhances the effects of other alloying elements. Eliminate temper brittleness in steels. Increases high temperature strength. |
| Manganese | Increases hardenability. Combines with sulfur to reduce its adverse effects. |
| Vanadium | Increases hardenability, high temperature hardness, and wear resistance. Improves fatigue resistance. |
| Titanium | Strongest carbide former. Added to stainless steel to prevent precipitation of chromium carbide. |
| Silicon | Removes oxygen in steel making. Improves toughness. Increases hardness ability |
| Boron | Increases hardenability. Produces fine grain size. |
| Aluminum | Forms nitride in nitriding steels. Produces fine grain size in casting. Removes oxygen in steel melting. |
| Cobalt | Increases heat and wear resistance. |
| Tungsten | Increases hardness at elevated temperatures. Refines grain size. |
| Grade | UNS Number |
Heat Treat Type | Austenitizing/ Solutioning Temperature, min or range ºF [ºC] | Cooling Media | Subcritical Annealing or Tempering Temperature, min or range ºF [ºC] | ASTM Grain S |
|
|---|---|---|---|---|---|---|---|
| Ferritic Alloy Steels | |||||||
| T2 | K11547 | full or isothermal anneal | … | … | … | … | |
| normalize and temper | … | … | … | … | |||
| subcritical anneal | … | … | 1200 to 1350 | … | |||
| [650 to 730] | |||||||
| T5 | K41545 | full or isothermal anneal | … | … | … | … | |
| normalize and temper | … | … | 1250 [675] | … | |||
| T5b | K51545 | full or isothermal anneal | … | … | … | … | |
| normalize and temper | … | … | 1250 [675] | … | |||
| T5c | K41245 | subcritical anneal | … | air or furnace | 1350 [730]C | … | |
| T9 | S50400 | full or isothermal anneal | … | … | … | … | |
| normalize and temper | … | … | 1250 [675] | … | |||
| T11 | K11597 | full or isothermal anneal | … | … | … | … | |
| normalize and temper | … | … | 1200 [650] | … | |||
| T12 | K11562 | full or isothermal anneal | … | … | … | … | |
| normalize and temper | … | … | … | … | |||
| subcritical anneal | … | … | 1200 to 1350 | … | |||
| [650 to 730] | |||||||
| T17 | K12047 | full or isothermal anneal | … | … | … | … | |
| normalize and temper | … | … | 1200 [650] | … | |||
| T21 | K31545 | full or isothermal anneal | … | … | … | … | |
| normalize and temper | … | … | 1250 [675] | … | |||
| T22 | K21590 | full or isothermal anneal | … | … | … | … | |
| normalize and temper | … | … | 1250 [675] | … | |||
| T23 | K40712 | normalize and temper | 1900–1975 | … | 1350–1470 [730–800] | … | |
| [1040–1080] | |||||||
| T24 | K30736 | normalize and tempher | 1800–1975 | … | 1350–1470 [730–800] | … | |
| [980–1080] | |||||||
| T36 | K21001 | normalize and temper | 1650 [900] | D | 1100 [595] | … | |
| T91 | K90901 | normalize and temper | 1900–1975 | … | 1350–1470 [730–800] | … | |
| [1040–1080] | |||||||
| T92 | K92460 | normalize and temper | 1900–1975 | … | 1350–1470 [730–800] | … | |
| [1040–1080] | |||||||
| T122 | K91261 | normalize and temper | 1900–1975 | … | 1350–1470 [730–800] | … | |
| [1040–1080] | |||||||
| T911 | K91061 | normalize and temper | 1900–1975 | E | 1365–1435 | … | |
| [1040–1080] | [740–780] | ||||||
| Austenitic Stainless Steels | |||||||
| TP201 | S20100 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| TP202 | S20200 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| XM-19 | S20910 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| … | S21500 | solution treatment | 1900 [1040]F,G | water or other rapid cool | … | … | |
| … | S25700 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| … | S30150: | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| TP304 | S30400 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| TP304L | S30403 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| TP304H | S30409 | solution treatment | 1900 [1040] | water or other rapid cool | … | 7 | |
| … | S30432 | solution treatment | 2000 [1100]F | water or other rapid cool | … | … | |
| … | S30434 | solution treatment | 2120 [1160] | water or other rapid cool | … | … | |
| TP304N | S30451 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| TP304LN | S30453 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| … | S30615 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| … | S30815 | solution treatment | 1920 [1050] | water or other rapid cool | … | … | |
| TP309S | S30908 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| TP309H | S30909 | solution treatment | 1900 [1040] | water or other rapid cool | … | 7 | |
| TP309Cb | S30940 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| TP309HCb | S30941 | solution treatment | 1900 [1040]H | water or other rapid cool | … | 7 | |
| … | S31002 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| TP310S | S31008 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| TP310H | S31009 | solution treatment | 1900 [1040] | water or other rapid cool | … | 7 | |
| TP310Cb | S31040 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| TP310HCb | S31041 | solution treatment | 1900 [1040]H | water or other rapid cool | … | 7 | |
| TP310HCbN | S31042 | solution treatment | 1900 [1040]F,H | water or other rapid cool | … | 7 | |
| … | S31060 | solution treatment | 1975 [1080]– | water or other rapid cool | … | 7 | |
| 2160 [1180]F | |||||||
| … | S31254 | solution treatment | 2100 [1150] | water or other rapid cool | … | … | |
| … | S31272 | solution treatment | 1920 [1050] | water or other rapid cool | … | … | |
| … | S31277 | solution treatment | 2050 [1120]F | water or other rapid cool | … | … | |
| TP316 | S31600 | solution treatment | 1900 [1040]F | water or other rapid cool | … | … | |
| Grade | UNS Designation | C | Mn | P | S | Si | Vanadium | Boron | Niobium | Nitrogen | Aluminum | Tungsten |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 0.15 | ... | ... | ... | ... | ... |
| 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 | 0.20–0.30 | 0.0010–0.006 | 0.02–0.08 | 0.015 | 0.03 | 1.45–1.75 |
| T24 | K30736 | 0.05–0.10 | 0.30–0.70 | 0.02 | 0.01 | 0.15–0.45 | 0.20–0.30 | 0.0015–0.007 | ... | 0.012 | 0.02 | ... |
| T36 | K21001 | 0.10–0.17 | 0.80–1.20 | 0.03 | 0.025 | 0.25–0.50 | 0.02 | ... | 0.015–0.045 | 0.02 | 0.05 | ... |
| T91 | K90901 | 0.07–0.14 | 0.30–0.60 | 0.02 | 0.01 | 0.20–0.50 | 0.18–0.25 | ... | 0.06–0.10 | 0.030–0.07 | 0.02 | ... |
| T92 | K92460 | 0.07–0.13 | 0.30–0.60 | 0.02 | 0.01 | 0.5 | 0.15–0.25 | 0.001–0.006 | 0.04–0.09 | 0.030–0.07 | 0.02 | 1.5–2.00 |
| T122 | K91271 | 0.07–0.14 | 0.7 | 0.02 | 0.01 | 0.5 | 0.15–0.30 | 0.0005–0.005 | 0.04–0.10 | 0.040– | 0.02 | 1.50–2.50 |
| T911 | K91061 | 0.09–0.13 | 0.30–0.60 | 0.02 | 0.01 | 0.10–0.50 | 0.18–0.25 | 0.0003–0.006 | 0.06–0.10 | 0.040–0.09 | 0.02 | 0.90–1.10 |
| Grade | Tensile strength (Mpa) |
Yield point(Mpa) not less than |
Elongation(%) not less than |
Impact(J) not less than |
Hardness not less than |
|---|---|---|---|---|---|
| A213 T2/SA213 T2 | ?15 | 205 | " | 85HRB | |
| A213 T11/SA213 T11 | ?15 | 205 | " | 85HRB | |
| A213 T22/SA213 T22 | ?15 | 205 | " | 85HRB | |
| A213 T23/SA213 T23 | ?10 | 400 | 20 | " | 97HRB |
| A213 T24/SA213 T24 | ?85 | 415 | 20 | " | 25HRB |
| A213 T91/SA213 T91 | ?85 | 415 | 20 | " | 25HRB |
| A213 T911/SA213 T911 | ?20 | 440 | 20 | " | 25HRB |
| A213 T22/SA213 T92 | ?20 | 440 | 20 | " | 25HRB |
| A213 T122/SA213 T122 | ?20 | 400 | 20 | 25HRB | |
| TP304H | ?15 | 205 | 35 | 90HRB | |
| TP316H | ?15 | 205 | 35 | 90HRB | |
| TP321H | ?15 | 205 | 35 | 90HRB | |
| TP347H | ?15 | 205 | 35 | 90HRB | |
| S30432 | ?90 | 235 | 35 | 95HRB | |
| TP310HCbN | ?55 | 295 | 30 | 100HRB |
A Maximum, unless range or minimum is indicated. Where ellipses (...) appear in this table, there is no requirement, and analysis for the element need not be determined or reported.
B It is permissible to order T2 and T12 with a sulfur content of 0.045 max. See 16.3.
C Alternatively, in lieu of this ratio minimum, the material shall have a minimum hardness of 275 HV in the hardened condition, defined as after austenitizing and cooling to room temperature but prior to tempering.
Hardness test frequency shall be two samples of product per heat treatment lot and the hardness testing results shall be reported on the material test report.
A 213 - Seamless Alloy Steel Boiler and Heat Exchanger Tubes
| ASTMSTANDARD | UNS NO. | KOREA/JAPANES | GERMAN | BRITISH | FRENCH | ITALIAN | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KS/JIS Symbol | KS/JIS Numbe | Remarks | DIN Type | DINNumber | MateriralNumber | Remarks | B.SNumber | B.S Grade | Remarks | AFNOR Type | NF Number | Ramarks | UNI Type | UNI Number | Ramarks | ||
| Grade T 5 | K41545 | STHA 24 / STBA 25 | D3572 / G3462 | (30)(24) | 12 CrMo 19 5 | 1.7362 | (3a) | 3606 | 625 | (30) | TUZ12C | A49-213 | (3a)(32) | Dalmine 234(3b) | |||
| Grade T 11 | K11597 | STHA 22 / STBA 24 | D3572 / G3462 | (30)(24) | 13 CrMo 44 | 17175 | 1.7335 | (8)(32) | 3606 | 621 | (30) | 5.05 | (3b)(32) | Dalmine 227(3b) |
|||
| Grade T 12 | K11562 | STHA 21 / STBA 22 | D3572 / G3462 | (30)(24) | 13 CrMo 44 |
17175 | 1.7335 | (32) | 3606 | 620 | (30) | TU 10 CD 5.05 | |||||
| Grade T 22 | K21590 | STHA 23 / STBA 24 | D3572 / G3462 | (30)(24) | 10 CrMo 9 10 | 17175 | 1.7380 | (32) | 3606 | 622 | (30)(32) | (3a)(32) | 12 CrMo 9 10 | 5462 | Dalmine 235(3b) | ||
| TP 304 | S30400 | STS 304 TB / SUS 304 TB | D3577 / G3463 | (30)(24) | X5 CrNi 18 9 | 17440 | 1.4301 | (3b) | 3606 | 304S25 | (30) | TU 10 CD 9.10 | A49-218 | (3b) | X5 CrNi 18 10 | 6904 | (3b) |
| TP 304L | S31403 | STS 304LTB / SUS 304LTB | D3577 / G3463 | (30)(24) |
X2 CrNi 18 9 | 17440 | 1.4306 | (3b) | 3606 | 304S22 | (30) | Z 6 CN 18.09 | A49-218 | (3b) | X2 CrNi 18 11 | 6904 | (3b) |
| TP 310 | S31000 | STS 310STB/SUS 210STB | D3577 / G3463 | (30)(24) | X12 CrNi 2528 | 1.4845 | WBL-470(3b) |
(3) | Z 2 CN 18.09 | (3) | X22CrNi 25 20 | 6904 | (3b)(11) | ||||
| TP 316 | S31600 | STS 316TB / SUS 316TB | D3577 / G3463 | (30)(24) | X5 CrNiMo 18 10 | 17440 | 1.4401 | (3b) | 3606 | 316S30 | (30) | A49-218 | (3b) | X5 CrNiMo 17 12 | 6904 | (3b) | |
| TP 316L | S211603 | STS 316LTB /SUS 316LTB | D3577 / G3463 | (30)(24) | X2 CrNiMo 18 10 | 17440 | 1.4404 | (3b) | 3606 | 316S29 | (30) | Z 6 CND 17.12 | A49-218 | (3b) | X2 CrNiMo 17 12 | 6904 | (3b) |
| TP 321 | S32100 | STS 312TB/SUS 321TB | D3577 / G3463 | (30)(24) | X10 CrNiTi 18 9 | 17440 | 1.4541 | (3b) | 3606 | 321S22 | (30) | Z2 CND 17.13 | A49-218 | (3b) | X6 CrNiTi 18 11 | 6904 | (3b) |
| TP 347 | S34700 | STS 347TB / SUS 347TB | D3577 / G3463 | (30)(24) | X10 CrNiNb 18 9 | 17440 | 1.4550 | (3b) | 3606 | 347S17 | (30) | Z6 CNT 18.11 | A49-218 | (3b) | X6 CrNiNb 18 11 | 6904 | (3b) |
| Z 6 CNNb 18.11 | |||||||||||||||||
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.
The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.
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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