A335/A335M Alloy Steel Pipe Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

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ASTM/ASME SMLS Pipe A335: Pl , P2, P5, P9, PII, P12, P15, P21 , P22, P91, P92

ASME SA335—American Boiler and Pressure Vessel norms

Standard: ASTM A335/ASME SA335
Steel grade: P5, P9, P11, P12, P22, P91, P92
Size: OD (90-1200mm) x WT (25-150mm)
Application: Used for boiler pipe, power plants and nuclear plants.

A335/A335M Alloy Steel Pipe Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service:A335/A335M alloy pipe

Product Type:
Seamless Alloy Steel Pipe/Tube

Dimension:
1/2″ to 28″, 21mm to 720mm

Wall Thickness:
SCH5 to XXS, 5mm to 120mm

Standard:
ASTM, ASME, API, EN, DIN, JIS, GOST etc.

Chemical Composition (%)

Grade

P11

0.05~0.15

0.5~1.0

0.3~0.6

≤ 0.03

1.0~1.5

0.5~1.0

P12

0.05~0.15

≤ 0.5

0.3~0.61

≤ 0.03

0.8~1.25

0.44~0.65

P22

0.05~0.15

≤ 0.5

0.3~0.6

≤ 0.03

1.9~2.6

0.87~1.13

≤ 0.15

≤ 0.5

0.3~0.6

≤ 0.03

4.0~6.0

0.45~0.65

P91

0.08~0.12

0.2~0.5

0.3~0.6

≤ 0.02

≤ 0.01

8.0~9.5

0.85~1.05

≤ 0.4

0.18~0.25

≤ 0.015

0.06~0.10

0.03~0.07

P92

0.07~0.13

≤ 0.5

0.3~0.6

≤ 0.02

≤ 0.01

8.5~9.5

0.3~0.6

B0.001 0.006

≤ 0.4

0.15~0.25

≤ 0.015

1.5~2.0

0.04~0.09

0.03~0.07

Material

Cr5Mo (T5 P5 STFA 25 STPA25 STBA25)15CrMo (T12 P12 STFA22 STPA22 STBA22)

1.25Cr0.5Mo (T11 P11 STFA23 STPA23 STBA23)

Cr9Mo (T9 P9 STFA26 STPA26 STBA26)

12Cr2Mo (T22 P22 10CrMo910)

10Cr9Mo1VNb (T91 P91)

12Cr1MoV

12Cr2MoWVTiB (R102)

Mechanical Properties
Grade	Tensile strength(MPa)	Yield strength(MPa)	Elongation(%)	Impact energy(J)	Hardness
P11	≥ 415	≥ 205	≥ 22	≥ 35	≤ 163HB
P12	≥ 415	≥ 220	≥ 22	≥ 35	≤ 163HB
P22	≥ 415	≥ 205	≥ 22	≥ 35	≤ 163HB
P5	≥ 415	≥ 205	≥ 22	≥ 35	≤ 187HB
P91	585~760	≥ 415	≥ 20	≥ 35	≤ 250HB
P92	≥ 620	≥ 440	≥ 20	≥ 35	250HB

Seamless Ferritic Alloy Steel Pipe ASTM A335

TABLE 1 Chemical Requirements

	UNS			Composition, %
Grade	Designa- tion^A	Carbon	Man ganese	Phos phorus, max	Sulfur, max	Silicon	Chromium	Molybde num	Others
P1	K11522	0.10-0.20	0.30-0.80	0.025	0.025	0.10-0.50		0.44-0.65
P2	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
P5	K41545	0.15 max	0.30-0.60	0.025	0.025	0.50 max	4.00-6.00	0.45-0.65
P5b	K51545	0.15 max	0.30-0.60	0.025	0.025	1.00-2.00	4.00-6.00	0.45-0.65
P5c	K41245	0.12 max	0.30-0.60	0.025	0.025	0.50 max	4.00-6.00	0.45-0.65	B
P9	S50400	0.15 max	0.30-0.60	0.025	0.025	0.25-1.00	8.00-10.00	0.90-1.10
P11	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
P12	K11562	0.05-0.15	0.30-0.61	0.025	0.025	0.50 max	0.80-1.25	0.44-0.65
P15	K11578	0.05-0.15	0.30-0.60	0.025	0.025	1.15-1.65		0.44-0.65
P21	K31545	0.05-0.15	0.30-0.60	0.025	0.025	0.50 max	2.65-3.35	0.80-1.06
P22	K21590	0.05-0.15	0.30-0.60	0.025	0.025	0.50 max	1.90-2.60	0.87-1.13
P23	K41650	0.04-0.10	0.10-0.60	0.030 max	0.010 max	0.50 max	1.90-2.60	0.05-0.30	V 0.20-0.30 Cb 0.02-0.08 B 0.0010-0.006 N 0.015 max Al 0.030 max W 1.45-1.75 Ni 0.40 max Ti 0.005-0.060 Ti/N $ 3.5^C
P24	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	V 0.20-0.30 Ti 0.06-0.10 N 0.012 max Al 0.02 max B 0.0015-0.007
P36	K21001	0.10-0.17	0.80-1.20	0.030 max	0.025 max	0.25-0.50	0.30 max	0.25-0.50	Ni 1.00-1.30 Cu 0.50-0.80 Cb 0.015-0.045 V 0.02 max N 0.02 max Al 0.050 max
P91	K91560	0.08-0.12	0.30-0.60	0.020	0.010	0.20-0.50	8.00-9.50	0.85-1.05	V 0.18-0.25 N 0.030-0.070 Ni 0.40 max Al 0.02 max Cb 0.06-0.10 Ti 0.01 max Zr 0.01 max
P92	K92460	0.07-0.13	0.30-0.60	0.020	0.010	0.50 max	8.50-9.50	0.30-0.60	V 0.15-0.25 N 0.03-0.07 Ni 0.40 max Al 0.02 max Cb 0.04-0.09 W 1.5-2.00 B 0.001-0.006 Ti 0.01 max Zr 0.01 max
P122	K92930	0.07-0.14	0.70 max	0.020	0.010	0.50 max	10.00-11.50	0.25-0.60	V 0.15-0.30 W 1.50-2.50 Cu 0.30-1.70 Cb 0.04-0.10 B 0.0005-0.005 N 0.040-0.100 Ni 0.50 max Al 0.020 max Ti 0.01 max Zr 0.01 max
P911	K91061	0.09-0.13	0.30-0.60	0.020 max	0.010 max	0.10-0.50	8.5-9.5	0.90-1.10	V 0.18-0.25 Ni 0.40 max Cb 0.060-0.10 B 0.0003-0.006 N 0.04-0.09 Al 0.02 max W 0.90-1.10 Ti 0.01 max Zr 0.01 max