ASTM A213 STANDARD SEAMLESS ALLOY STEEL TUBE FOR HIGH PRESSURE BOILER PLANT OR POWER PLANT

ASTM A213 Specified for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes. Alloy Grade:T2, T5 ,T9,T11,T12,T91,T92 Outer diameter:6mm-760mm Wall thickness:1mm-60mm ASTM A213 alloy steel tube chemical composition:

Grade	C	Mn	P	S	Si	Cr	Mo	V	N	Ni	Al	Nb	W
T2	0.10-0.20	0.30-0.61	0.025 max	0.025 max	0.10-0.30	0.50-0.81	0.44-0.65
T5	0.15 max	0.30-0.60	0.025 max	0.025 max	0.50 max	4.00-6.00	0.45-0.65
T9	0.15 max	0.30-0.60	0.025 max	0.025 max	0.25-1.00	8.0-10.0	0.90-1.10
T11	0.15 max	0.30-0.60	0.025 max	0.025 max	0.50-1.00	1.00-1.50	0.44-0.65
T12	0.15 max	0.30-0.60	0.025 max	0.025 max	0.50-1.00	1.00-1.50	0.44-0.65
T22	0.05-0.15	0.30-0.60	0.025 max	0.025 max	0.50 max	1.90-2.60	0.87-1.13
T91	0.08-0.12	0.30-0.60	0.020 max	0.010 max	0.20-0.50	8.00-9.50	0.85-1.05	0.18-0.25	0.03-0.07	0.40 max	0.04 max	0.06-0.10
T92	0.07-0.13	0.30-0.60	0.020 max	0.010 max	0.50 max	8.50-9.50	0.30-0.60	.015-0.25	0.03-0.07	0.40 max	0.04 max	0.04-0.09	1.50-2.00

ASTM A213 alloy steel tube mechanical property table:

Grade	Tensile Strength, Mpa	Yield Strength, Mpa	Elongation, %	Hardness, HB
T2	415 min	205 min	30 min	163 max
T5	415 min	205 min	30 min	163 max
T9	415 min	205 min	30 min	179 max
T11	415 min	205 min	30 min	179 max
T12	415 min	205 min	30 min	179 max
T22	415 min	205 min	30 min	163 max
T91	585 min	415 min	20 min	250 max
T92	585 min	415 min	20 min	250 max

ASTM A213 alloy steel tube outside diameter tolerance:

Method	Outside Diameter,mm	Tolerance, mm
Hot Rolled	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	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 alloy steel tube wall thickness tolerance:

Method	Outside Diameter, mm	Tolerance, %
Hot Rolled	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	OD=38.1	+20 / -0
OD>38.1	+22 / -0