ASTM A213 Heat-Exchanger Boiler steel pipe

by admin / Sunday, 14 May 2023 / Published in Alloy pipe

ASTM A213 is a standard specification for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes. This specification covers minimum wall thickness, seamless ferritic and austenitic steel, boiler and superheater tubes, and austenitic steel heat-exchanger tubes, designated Grades T5, TP304, etc.

The ASTM A213 specification is widely used in the manufacturing of boilers, superheaters, and heat exchangers in the power generation and petrochemical industries. The steel pipes produced under this standard are designed to withstand high pressure and high temperature environments. The pipes are typically used in applications that involve transferring heat from one medium to another.

The grades specified in ASTM A213 cover a wide range of materials, including low-alloy steel, stainless steel, and nickel alloys. These materials are selected for their ability to resist corrosion, high-temperature stability, and strength. The precise chemical composition and mechanical properties of the steel pipes are specified in the standard to ensure they meet the required performance criteria.

Overall, ASTM A213 Heat-Exchanger Boiler steel pipes play an essential role in many industrial processes and are critical components in the construction of power plants and other energy-related infrastructure.

Size: 3.2 to 127 mm.

Wall Thickness: 0.4 to 12.7mm.

Shape: Round.

Length: Single random length/ Double random length or as customer’s actual request.

Grade: T2, T5, T5b, T9, T91.

Outside diameter tolerance of ASTM A213 Steel Tube:

Hot rolled	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	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

Wall thickness & Tolerance of ASTM A213 Steel Tube :

Hot rolled	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	Outside Diameter, mm	Tolerance, %
	OD≤38.1	+20/-0
	OD>38.1	+22/-0

Referenced Documents:

ASTM A 1016/A 1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stain- less Steel Tubes.

ASTM A213M-09 Material Comparison Tables (ASTM →KS, JIS, DIN, BS, NBN, NF, UNI)

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

Grade	Tensile strength	Yield point(Mpa)	Elongation(%)	Impact(J)	Hardness
Grade	(Mpa)	not less than	not less than	not less than	not less than
A213 T2/SA213 T2	≥415	205		“	85HRB
A213 T11/SA213 T11	≥415	205		“	85HRB
A213 T22/SA213 T22	≥415	205		“	85HRB
A213 T23/SA213 T23	≥510	400	20	“	97HRB
A213 T24/SA213 T24	≥585	415	20	“	25HRB
A213 T91/SA213 T91	≥585	415	20	“	25HRB
A213 T911/SA213 T911	≥620	440	20	“	25HRB
A213 T22/SA213 T92	≥620	440	20	“	25HRB
A213 T122/SA213 T122	≥620	400	20		25HRB
TP304H	≥515	205	35		90HRB
TP316H	≥515	205	35		90HRB
TP321H	≥515	205	35		90HRB
TP347H	≥515	205	35		90HRB
S30432	≥590	235	35		95HRB
TP310HCbN	≥655	295	30		100HRB

Note:

Chemical Composition:

Chemical Components (%)
Grade	C	Mn	P	S	Si	Cr	Mo	V	Nb	N	Al	others
T2	0.10-0.20	0.30-0.61	≤0.025	≤0.025	0.10-0.30	0.50-0.81	0.44-0.65
T5	0.15	0.30-0.60	≤0.025	≤0.025	0.5	4.0-6.0	0.45-0.65
T5b	0.15	0.30-0.60	≤0.025	≤0.025	1.0-2.0	4.0-6.0	0.45-0.65
T9	0.15	0.30-0.60	≤0.025	≤0.025	0.25-1.0	8.0-10.0	0.90-1.10
T91	0.07-0.14	0.30-0.60	≤0.020	≤0.010	0.20-0.50	8.0-9.5	0.85-1.05	0.18-0.25	0.06-0.1	0.030-0.070	0.02	Ti 0.01 Zr 0.01

Heat Treatment Requirements

Grade	UNS Number	Heat Treat Type	Austenitizing / Solutioning Temperature, min or range °F [°C]	Subcritical Annealing or Tempering Temperature, Min or range °F [°C]
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]
T9	K50400	full or isothermal anneal normalize and temper	…	1250 [675]
T91	K90901	normalize and temper	1900–1975 [1040–1080]	1350–1470 [730–800]

Tensile Requirements and Hardness:

Mechanical Properties
Grade	Tensile	Yield	Elongation	Hardness
Grade	Strength (Mpa)	Strength (Mpa)	(%)
T5b	≥415	≥205	≥30	≤89HRB
T9	≥415	≥205	≥30	≤89HRB
T91	≥585	≥415	≥20	≤25HRC

Flattening Test – One flattening test shall be made on specimens from each end of one finished tube, not the one used for the flaring test, from each lot.

Flaring Test – One flaring test shall be made on specimens from each end of one finished tube, not the one used for the flattening test, from each lot.

Hydrostatic or Nondestructive Electric Test – Each tube shall be subjected to the nondestructive electric test or the hydrostatic test. The type of test to be used shall be at the option of the manufacturer, unless otherwise specified in the purchase order.

Tagged under: A213, ASTM A213, boiler pipe

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