ASME Reference Tables

ASME Boiler Tube Specification Tables — SA-192 / SA-209 / SA-210 / SA-213

Chemical composition and mechanical properties for seamless carbon and alloy-steel boiler and superheater tubes per ASME BPVC Section II Part A 2023. Covers SA-192, SA-209 (T1/T1a/T1b), SA-210 (A-1/C), and SA-213 ferritic grades (T2/T11/T12/T22/T91).

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ASME Boiler and Superheater Tube Specifications

ASME BPVC Section II Part A governs ferrous material specifications for boiler and pressure vessel construction. The four tube specifications covered here — SA-192, SA-209, SA-210, and SA-213 — are the most widely used in power plant boilers, industrial pressure vessels, and refinery heaters.

Select the Grade Overview tab for a side-by-side comparison, the Chemical Composition or Mechanical Properties tabs for filterable specification tables, or Engineering Notes for heat treatment and grade selection guidance.

Table data verified 2026-07-01 — ASME BPVC Section II Part A 2023.

SA-192

Seamless Carbon Steel Boiler Tubes for High-Pressure Service

Identical with ASTM A192-17

Grades: Single grade — no designation

Alloy system: Plain carbon steel (no Cr, Mo)

Size range: OD ½–7 in. (12.7–177.8 mm)

Application: Water-tube and fire-tube boilers, high-pressure superheater drum shells, low-alloy pressure service

Heat treatment: Annealed or stress-relieved

Lowest-cost boiler tube. Used where temperature and pressure do not require alloy grades.

SA-209

Seamless Carbon-Molybdenum Alloy-Steel Boiler/Superheater Tubes

Identical with ASTM A209M-03(2017)

Grades: T1, T1a, T1b

Alloy system: C-Mo (0.44–0.65% Mo, no Cr)

Size range: OD ½–5 in. (12.7–127 mm)

Application: Superheater and reheater tubes up to approx. 480°C (900°F). Mo addition improves creep resistance over SA-192.

Heat treatment: Annealed

T1b has lowest carbon (0.14 max) for improved weldability. T1a has highest strength.

SA-210

Seamless Medium-Carbon Steel Boiler and Superheater Tubes

Identical with ASTM A210M-95(2016)

Grades: A-1, C

Alloy system: Medium carbon steel (no Cr, Mo)

Size range: OD ½–5 in. (12.7–127 mm)

Application: Boiler drums, economizers, water walls, superheaters in lower-temperature zones. Grade C provides higher strength.

Heat treatment: Normalized or normalized and tempered

Grade A-1 most common. Grade C used where higher tensile/yield strength is required.

SA-213

Seamless Ferritic and Austenitic Alloy-Steel Boiler/Superheater/Heat-Exchanger Tubes

Identical with ASTM A213M-22

Grades: T2, T11, T12, T22, T91

Alloy system: Ferritic Cr-Mo alloys (T2 through T91). Austenitic stainless also in standard.

Size range: OD ½–3½ in. (12.7–88.9 mm) typical for ferritic grades

Application: High-temperature superheaters, reheaters, heat exchangers. T22 (2.25Cr-1Mo) used up to 620°C; T91 (9Cr-1Mo-V) for ultra-supercritical service above 620°C.

Heat treatment: Anneal or normalize and temper (see Engineering Notes). T91 requires N+T at 1040–1080°C / 730–800°C.

ZC supplies T2, T11, T12, T22, T91. T91 is a ferritic (martensitic) 9Cr-1Mo-V grade — not austenitic. Austenitic grades (TP304, TP316, TP347 etc.) available on request.

SA-192, SA-209, SA-210 and SA-213 Mechanical Properties Quick Reference — UTS, Yield, Elongation and Hardness per Grade (ASME BPVC Section II Part A 2023)
Spec	Grade	UTS min (MPa)	YS min (MPa)	Elong min %	Hardness max	Alloy
SA-192	—	325 (47 ksi)	180 (26 ksi)	35	137 HBW / 77 HRB	Single grade
SA-209	T1	380 (55 ksi)	205 (30 ksi)	30	146 HBW / 80 HRB	C-Mo
SA-209	T1a	415 (60 ksi)	220 (32 ksi)	30	153 HBW / 81 HRB	C-Mo, higher C
SA-209	T1b	365 (53 ksi)	195 (28 ksi)	30	137 HBW / 77 HRB	C-Mo, low C
SA-210	A-1	415 (60 ksi)	255 (37 ksi)	30	143 HBW / 79 HRB	Medium carbon
SA-210	C	485 (70 ksi)	275 (40 ksi)	30	179 HBW / 89 HRB	Medium carbon, higher strength
SA-213	T2	415 (60 ksi)	205 (30 ksi)	30	163 HBW / 85 HRB	0.5Cr-0.5Mo
SA-213	T11	415 (60 ksi)	205 (30 ksi)	30	163 HBW / 85 HRB	1.25Cr-0.5Mo
SA-213	T12	415 (60 ksi)	220 (32 ksi)	30	163 HBW / 85 HRB	1Cr-0.5Mo
SA-213	T22	415 (60 ksi)	205 (30 ksi)	30	163 HBW / 85 HRB	2.25Cr-1Mo
SA-213	T91	585 (85 ksi)	415 (60 ksi)	20	190–250 HBW (range, not max)	9Cr-1Mo-V ferritic (martensitic)

Source: ASME BPVC Section II Part A 2023. SA-192 hardness from Explanatory Note. SA-209 hardness per Table 2. SA-210 hardness per Table 3. SA-213 hardness per Table 4.

Showing 11 of 11 grades

SA-192, SA-209, SA-210 and SA-213 Chemical Composition — Heat Analysis Requirements for C, Mn, P, S, Si, Cr, Mo by Grade (ASME BPVC Section II Part A 2023)
Spec	Grade	UNS	C (%)	Mn (%)	P max (%)	S max (%)	Si (%)	Cr (%)	Mo (%)	Alloy System
SA-192	—	—	0.06–0.18	0.27–0.63	0.035	0.035	0.25 max	—	—	Single grade
SA-209	T1	—	0.10–0.20	0.30–0.80	0.025	0.025	0.10–0.50	—	0.44–0.65	C-Mo
SA-209	T1a	—	0.15–0.25	0.30–0.80	0.025	0.025	0.10–0.50	—	0.44–0.65	C-Mo, higher C
SA-209	T1b	—	0.14 max	0.30–0.80	0.025	0.025	0.10–0.50	—	0.44–0.65	C-Mo, low C
SA-210	A-1	—	0.27 max	0.93 max	0.035	0.035	0.10 min	—	—	Medium carbon
SA-210	C	—	0.35 max	0.29–1.06	0.035	0.035	0.10 min	—	—	Medium carbon, higher strength
SA-213	T2	K11547	0.10–0.20	0.30–0.61	0.025	0.025	0.10–0.30	0.50–0.81	0.44–0.65	0.5Cr-0.5Mo
SA-213	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	1.25Cr-0.5Mo
SA-213	T12	K11562	0.05–0.15	0.30–0.61	0.025	0.025	0.50 max	0.80–1.25	0.44–0.65	1Cr-0.5Mo
SA-213	T22	K21590	0.05–0.15	0.30–0.60	0.025	0.025	0.50 max	1.90–2.60	0.87–1.13	2.25Cr-1Mo
SA-213	T91	K90901	0.07–0.14	0.30–0.60	0.020	0.010	0.20–0.50	8.0–9.5	0.85–1.05	9Cr-1Mo-V ferritic (martensitic)

Source: SA-192 Table 1; SA-209 Table 1; SA-210 Table 1; SA-213 Table 1. ASME BPVC Section II Part A 2023. All values are heat analysis requirements.

Showing 11 of 11 grades

SA-192, SA-209, SA-210 and SA-213 Mechanical Properties — Tensile Strength, Yield Strength, Elongation and Hardness by Grade (ASME BPVC Section II Part A 2023)
Spec	Grade	UNS	UTS min (ksi)	UTS min (MPa)	YS min (ksi)	YS min (MPa)	Elong min (%)	Hardness max
SA-192	—	—	47	325	26	180	35	137 HBW / 77 HRB
SA-209	T1	—	55	380	30	205	30	146 HBW / 80 HRB
SA-209	T1a	—	60	415	32	220	30	153 HBW / 81 HRB
SA-209	T1b	—	53	365	28	195	30	137 HBW / 77 HRB
SA-210	A-1	—	60	415	37	255	30	143 HBW / 79 HRB
SA-210	C	—	70	485	40	275	30	179 HBW / 89 HRB
SA-213	T2	K11547	60	415	30	205	30	163 HBW / 85 HRB
SA-213	T11	K11597	60	415	30	205	30	163 HBW / 85 HRB
SA-213	T12	K11562	60	415	32	220	30	163 HBW / 85 HRB
SA-213	T22	K21590	60	415	30	205	30	163 HBW / 85 HRB
SA-213	T91	K90901	85	585	60	415	20	190–250 HBW (range, not max)

Source: SA-192 from Explanatory Notes; SA-209 Table 2; SA-210 Table 3; SA-213 Table 4. ASME BPVC Section II Part A 2023. YS = 0.2% offset yield strength. Elongation in 2 in. (50 mm) gauge length minimum.

Note — Wall Thickness Correction for Elongation For SA-213 ferritic grades, the basic minimum elongation of 30% applies to wall thickness ≥ 5/16 in. (8 mm). For thinner walls, computed minimum values from SA-213 Table 5 apply. The minimum for thin-wall tubes can be as low as 16% for 1/16 in. (1.6 mm) wall.

Heat Treatment Requirements

SA-192, SA-209, SA-210 and SA-213 Heat Treatment Requirements — Delivery Condition and Temperature by Grade (ASME BPVC Section II Part A 2023)
Spec	Grade	Required Condition	Temper / Anneal Temp
SA-192	—	Full anneal or stress relief	—
SA-209	T1	Annealed	Recrystallized structure required
SA-209	T1a	Annealed	Recrystallized structure required
SA-209	T1b	Annealed	Recrystallized structure required
SA-210	A-1	Normalized or normalized and tempered	—
SA-210	C	Normalized or normalized and tempered	—
SA-213	T2	Anneal or subcritical anneal or N+T	Temper ≥ 675°C [1250°F]
SA-213	T11	Full/isothermal anneal or normalize and temper	Temper ≥ 650°C [1200°F]
SA-213	T12	Anneal or subcritical anneal or N+T	Temper 650–705°C [1200–1300°F]
SA-213	T22	Full/isothermal anneal or normalize and temper	Temper ≥ 675°C [1250°F]
SA-213	T91	Normalize and temper (or quench and temper)	Normalize 1040–1080°C; Temper 730–800°C [1350–1470°F]

Source: SA-213 Table 3; SA-192 §6; SA-209 §6; SA-210 §5. N+T = normalize and temper.

Grade Selection by Service Temperature

ASME Boiler Tube Grade Selection by Service Temperature — SA-192 through SA-213 T91 Recommended Grade
Temperature Range	Recommended Grade	Specification	Notes
Up to 315°C (600°F)	SA-192 or SA-210 A-1	SA-192 / SA-210	Plain carbon steel sufficient. Low cost, good weldability.
315–425°C (600–800°F)	SA-210 A-1 or SA-209 T1	SA-210 / SA-209	Mo in T1 begins to add creep benefit above 370°C.
425–510°C (800–950°F)	SA-209 T1, SA-213 T11	SA-209 / SA-213	Alloy grades needed to maintain allowable stress.
510–570°C (950–1060°F)	SA-213 T11 or T12	SA-213	1.25Cr-0.5Mo or 1Cr-0.5Mo preferred in this range.
570–620°C (1060–1150°F)	SA-213 T22	SA-213	2.25Cr-1Mo standard in this range for HRSG and reheaters.
Above 620°C	SA-213 T91 or T92	SA-213	Available on request; 9Cr-Mo-V grades for ultra-supercritical.

Temperature limits are indicative. Allowable stress values per ASME BPVC Section II Part D govern actual design.

SA-213 Tube vs SA-335 Pipe — Same Alloy, Different Product Form

SA-213 Boiler Tube vs SA-335 High-Temperature Pipe — Product Form, Size, Chemistry and NDE Comparison for Cr-Mo Grades (T11/P11, T22/P22)
Property	SA-213 (Tube)	SA-335 (Pipe)
Product form	Boiler, superheater, heat-exchanger tubes	Pressure piping, headers, steam lines
Size range	OD ½–3½ in. typical	NPS ⅛ and larger per B36.10M
T11 chemistry	Identical (1.25Cr-0.5Mo, K11597)	Identical (1.25Cr-0.5Mo, K11597)
T22 chemistry	Identical (2.25Cr-1Mo, K21590)	Identical (2.25Cr-1Mo, K21590)
Tensile (T11/P11)	60 ksi [415 MPa] min, 30 ksi [205 MPa] YS	60 ksi [415 MPa] min, 30 ksi [205 MPa] YS
Tensile (T22/P22)	60 ksi [415 MPa] min, 30 ksi [205 MPa] YS	60 ksi [415 MPa] min, 30 ksi [205 MPa] YS
NDE requirement	Hydrostatic or UT/EC per order	Hydrostatic or NDE per order

Post-Weld Heat Treatment (PWHT) Note

When welding SA-213 Cr-Mo grades (T2, T11, T12, T22), PWHT is required by ASME B31.1 and Section I for all wall thicknesses. Minimum PWHT temperatures: T11/T12 — 650°C [1200°F]; T22 — 675°C [1250°F]; T2 — 675°C [1250°F]. Failure to perform PWHT can result in cracking under stress in the heat-affected zone, particularly in T22 which has a higher susceptibility to reheat cracking.

Frequently Asked Questions

What is the difference between SA-192, SA-209, SA-210 and SA-213?

SA-192 is a plain carbon steel tube for high-pressure boiler service, with no intentional alloying. SA-209 adds molybdenum (0.44–0.65%) to improve creep resistance — used in superheaters up to ~500°C. SA-210 is a medium-carbon steel tube (Grades A-1 and C) with higher strength than SA-192. SA-213 covers both ferritic (T2/T11/T12/T22) and austenitic stainless grades — the ferritic grades add Cr and Mo for elevated-temperature steam service above 500°C.

What grades of SA-213 are used for superheaters and reheaters?

For superheater and reheater service, SA-213 T11 (1.25Cr-0.5Mo) and T22 (2.25Cr-1Mo) are the most widely used ferritic grades. T11 is typically used up to 570°C; T22 up to 620°C. Both require normalize-and-temper heat treatment. T91 (9Cr-1Mo-V) and T92 (9Cr-1Mo-V-W) handle still higher temperatures but are separate grades.

What is the heat treatment condition for SA-209 boiler tubes?

SA-209 tubes are supplied in the annealed condition. The specific annealing temperature is not mandated by the specification but must produce a recrystallised grain structure meeting the hardness limits (80–81 HRB depending on grade). Post-weld heat treatment (PWHT) at 650–705°C is required when welding into headers or tube sheets.

Can SA-213 T11 tubes be used for sour service?

SA-213 T11 is not inherently qualified for H2S sour service. NACE MR0175/ISO 15156 Part 2 covers carbon and low-alloy steels for sour service; low-alloy Cr-Mo steels in the hardness range of SA-213 T11 (≤163 HBW) may be acceptable in Region 0 or Region 1 environments, but specific qualification depends on pH and H2S partial pressure. Consult the applicable NACE/ISO standard before specifying.

What is the maximum operating temperature for SA-210 Grade A-1 tubes?

SA-210 Grade A-1 is typically used up to approximately 425°C (800°F) for boiler pressure parts, beyond which creep becomes significant. Allowable stress values for higher temperatures are published in ASME BPVC Section II Part D. For service above 425°C, alloy grades such as SA-213 T11 or T22 are preferred.

What is the difference between SA-213 T11 tube and SA-335 P11 pipe?

SA-213 T11 and SA-335 P11 have identical chemical composition (1.25Cr-0.5Mo). The difference is in product form: SA-213 covers tubes (typically OD ½–3½ in.), while SA-335 covers pipe (NPS ⅛ and larger). SA-213 tubes are used in superheaters, reheaters and heat exchangers; SA-335 P11 pipe is used for steam headers and connecting piping. Mechanical properties are identical.

Related Specification Tables

→ SA-106 & SA-335 High-Temperature Pipe Spec Tables → ASME B36.10M Pipe Schedule Chart → API 5CT Casing & Tubing Specification Tables → API 5L Line Pipe Specification Tables → NACE MR0175 Sour Service Material Tables

Supply Enquiry — ZC Steel Pipe

ZC Steel Pipe supplies seamless boiler and superheater tubes to SA-192, SA-209, SA-210, SA-213, GB 3087, GB/T 5310, EN 10216-2, and DIN 17175. Tell us your specification, grade, OD, wall thickness, length and quantity. We respond within one business day.

→ Request a Quote hazel.w@zcsteelpipe.com WhatsApp +12132393018

Data Source & Disclaimer: All specification data is sourced from ASME BPVC Section II Part A 2023. Tables are provided as engineering reference only. Always verify critical values against the current ASME standard before use in pressure part design. Not all grade/size combinations are stocked — contact us to confirm availability.