ASTM A213 T9 T11 T12 T22 Seamless Steel Tube

DONGSHANG Stainless is a manufacture, suppler and exporter in ASTM A213 T9 T11 T12 T22 seamless steel tube in China, applied in boiler tubes, superheater tubes, heat exchanger tubes in high temperature situation, these low alloy seamless tubes to heat exchanger system should conform to A213 specification and A1016 specification.

Manufacturing process and testing should be accordance with A213, from raw material to final products, Dongshang Stainless control each step to ensure high quality, record and test as per quality manual ans quality system, Non destructive and destructive test should be carried out as A213 specification and other relative ASTM specifications.

StandardA213
Manufacturingcold finished seamless process
GradesT9, T11, T12, T22
Finishingannealing pickling, bright annealing
Outside diameter6 – 127 mm
Thickness0.5 up to 8 mm
Applicationheat exchanger, boiler, super heater

T9 T11 T12 T22 and other alloy steel chemical composition

Grade UNS Designation Composition, %
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

ASTM a213 t9 t11 t12 t22 seamless steel tube

ASTM A213 is a custom ASTM specification for seamless steel tubes, beside T9, T11, T12, R22 grade, in addition, ASTM A213 304 304L Stainless Steel Seamless Tube, A213 TP316L Seamless Stainless Steel Tube and duplex seamless stainless steel tube, sometimes, stainless steel U bending tube type conforming to A213 required for heat exchanger system.