DONGSHANG Stainless is a manufacturer, supplier and exporter of ASTM A213 T11, T12, and T22 seamless steel tubes in China, alloy tubes are applied in boiler tubes, superheater tubes, heat exchanger tubes in high-temperature situations, these low alloy seamless tubes to heat exchanger system should conform to A213 specification and A1016 specification.
ASTM A213/ASME SA213 T11 T12 T22 Seamless Steel Tubes are in various sizes and are 1⁄8 in. [3.2 mm] in inside diameter to 5 in. [127 mm] in outside diameter and 0.015 to 0.500 in. [0.4 to 12.7 mm], inclusive, in minimum wall thickness or, if specified in the order, average wall thickness. Tubing having other diameters may be furnished on request.
ASTM A213 T9 T11 T12 T22 Seamless Steel Tube
Standard: ASTM A213, ASME SA213
Manufacturing: Cold Finished and Hot FAinished Seamless Process.
Grades: T11, T12, T22 alloys
Finish: Annealing Pickling
Outside Diameter: 6 – 127 Mm
Thickness: 0.5 Up To 8 Mm
Application: Heat Exchanger, Boiler, Super Heater
ASTM A213 Tubing
ASTM A213 T11 T12 T22 Seamless Steel Tube Outside Diameter & Tolerance
Hot rolled Alloys Tubes
| Outside Diameter, mm | Tolerance, mm |
|---|---|
| OD≤101.6 | +0.4/-0.8 |
| 101.6＜OD≤190.5 | +0.4/-1.2 |
| 190.5＜OD≤228.6 | +0.4/-1.6 |
Cold Drawn Alloys Tubes
| Outside Diameter, mm | Tolerance, mm |
|---|---|
| OD＜25.4 | ±0.10 |
| 25.4≤OD≤38.1 | ±0.15 |
| 38.1＜OD＜50.8 | ±0.20 |
| 50.8≤OD＜63.5 | ±0.25 |
| 63.5≤OD＜76.2 | ±0.30 |
| 76.2≤OD≤101.6 | ±0.38 |
| 101.6＜OD≤190.5 | +0.38/-0.64 |
| 190.5＜OD≤228.6 | +0.38/-1.14 |
ASTM A213 T11 T12 T22 Seamless Steel Tube Outside Diameter & Tolerance Wall thickness & Tolerance
Hot rolled Alloys Tubes
| Outside Diameter, mm | Tolerance, % |
|---|---|
| OD≤101.6, WT≤2.4 | +40/-0 |
| OD≤101.6, 2.4＜WT≤3.8 | +35/-0 |
| OD≤101.6, 3.8＜WT≤4.6 | +33/-0 |
| OD≤101.6, WT>4.6 | +28/-0 |
| OD>101.6, 2.4＜WT≤3.8 | +35/-0 |
| OD>101.6, 3.8＜WT≤4.6 | +33/-0 |
| OD>101.6, WT>4.6 | +28/-0 |
Cold Drawn Alloys Tubes
| Outside Diameter, mm | Tolerance, % |
|---|---|
| Outside Diameter, mm | Tolerance, % |
| OD≤38.1 | +20/-0 |
| OD>38.1 | +22/-0 |
The manufacturing process and testing of T9, T11, T12, T22 alloy steel grade seamless tubing should be in accordance with A213 standard, from raw material to final products, Dongshang Stainless controls each step to ensure high quality, records and tests as per quality manual and quality system, Nondestructive and destructive test should be carried out as A213 specification and other relative ASTM specifications.
ASTM A213 T9, T11, T12, T22 and other alloy steel chemical composition, %
| GRADE | UNS DESIGNATION | Carbon | Manganese | Phosphorus | Sulfur | Silicon | Nickel | Chromium | Molybdenum | Vanadium | Boron | Niobium | Nitrogen | Aluminum | Tungsten | Other Elements |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T2 | K11547 | 0.10–0.20 | 0.30–0.61 | 0.025 | 0.025B | 0.10–0.30 | … | 0.50–0.81 | 0.44–0.65 | … | … | … | … | … | … | … |
| T5 | K41545 | 0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.50 | … | 4.00–6.00 | 0.45–0.65 | … | … | … | … | … | … | … |
| T5b | K51545 | 0.15 | 0.30–0.60 | 0.025 | 0.025 | 1.00–2.00 | … | 4.00–6.00 | 0.45–0.65 | … | … | … | … | … | … | … |
| T5c | K41245 | 0.12 | 0.30–0.60 | 0.025 | 0.025 | 0.50 | … | 4.00–6.00 | 0.45–0.65 | … | … | … | … | … | … | Ti 4xC–0.70 |
| 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 | … | … | … | … | … | … | … |
| T12 | K11562 | 0.05–0.15 | 0.30–0.61 | 0.025 | 0.025B | 0.50 | … | 0.80–1.25 | 0.44–0.65 | … | … | … | … | … | … | … |
| T17 | K12047 | 0.15–0.25 | 0.30–0.61 | 0.025 | 0.025 | 0.15–0.35 | … | 0.80–1.25 | … | 0.15 | … | … | … | … | … | … |
| T21 | K31545 | 0.05–0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.50–1.00 | … | 2.65–3.35 | 0.80–1.06 | … | … | … | … | … | … | … |
| T22 | K21590 | 0.05–0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.50 | … | 1.90–2.60 | 0.87–1.13 | … | … | … | … | … | … | … |
| T23 | K40712 | 0.04–0.10 | 0.10–0.60 | 0.030 | 0.010 | 0.50 | 0.40 | 1.90–2.60 | 0.05–0.30 | 0.20–0.30 | 0.0010– 0.006 | 0.02–0.08 | 0.015 | 0.030 | 1.45–1.75 | Ti 0.005–0.060 Ti/N ≥3.5C |
| T24 | K30736 | 0.05–0.10 | 0.30–0.70 | 0.020 | 0.010 | 0.15–0.45 | … | 2.20–2.60 | 0.90–1.10 | 0.20–0.30 | 0.0015– 0.007 | … | 0.012 | 0.02 | … | Ti 0.06–0.10 |
| T36 | K21001 | 0.10–0.17 | 0.80–1.20 | 0.030 | 0.025 | 0.25–0.50 | 1.00–1.30 | 0.30 | 0.25–0.50 | 0.02 | … | 0.015–0.045 | 0.02 | 0.050 | … | Cu 0.50–0.80 |
| T91 | K90901 | 0.07–0.14 | 0.30–0.60 | 0.020 | 0.010 | 0.20–0.50 | 0.40 | 8.0–9.5 | 0.85–1.05 | 0.18–0.25 | … | 0.06–0.10 | 0.030– 0.070 | 0.02 | … | Ti 0.01 Zr 0.01 |
| T92 | K92460 | 0.07–0.13 | 0.30–0.60 | 0.020 | 0.010 | 0.50 | 0.40 | 8.5–9.5 | 0.30–0.60 | 0.15–0.25 | 0.001– 0.006 | 0.04–0.09 | 0.030– 0.070 | 0.02 | 1.5–2.00 | Ti 0.01 Zr 0.01 |
| T122 | K91271 | 0.07–0.14 | 0.70 | 0.020 | 0.010 | 0.50 | 0.50 | 10.0–11.5 | 0.25–0.60 | 0.15–0.30 | 0.0005– 0.005 | 0.04–0.10 | 0.040– 0.100 | 0.02 | 1.50–2.50 | Cu 0.30–1.70 Ti 0.01 Zr 0.01 |
| T911 | K91061 | 0.09–0.13 | 0.30–0.60 | 0.020 | 0.010 | 0.10–0.50 | 0.40 | 8.5–9.5 | 0.90–1.10 | 0.18–0.25 | 0.0003– 0.006 | 0.06–0.10 | 0.040– 0.090 | 0.02 | 0.90–1.10 | Ti 0.01 Zr 0.01 |