ASTM A335 Alloy Steel Pipe

Standard:P1,P2,P5,P5b,P5c,P9,P11,P12,P21,P22,P23,P24,P91,P92
OD:13.7-219.1mm
WT:1mm-20mm
Length:3m-12m
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Product Details

ASTM A335 Alloy Steel Pipe that covers “chrome-moly” seamless pipes with remarkable resistance to corrosion and good tensile strength at high-temperature service. Generally, ASTM A335 P11, P22, and P91 pipes are used in power generation and in downstream oil and gas, P5 and P9 grades are for refinery applications.

Standard: P1, P2, P5,P5b, P5c, P9, P11, P12,P21,P22,P23, P24, P91, P92

OD:13.7-219.1mm

WT:1mm-20mm

Length:3m-12m

ASTM A335
Low-Alloy Steel
(Grades)

UNS
equivalent

C≤

Mn

P≤

S≤

Si≤

Cr

Mo

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

0.30~0.60

0.025

0.025

0.5

4.00~6.00

0.44~0.65

P5b

K51545

0.15

0.30~0.60

0.025

0.025

1.00~2.00

4.00~6.00

0.44~0.65

P5c

K41245

0.12

0.30~0.60

0.025

0.025

0.5

4.00~6.00

0.44~0.65

P9

S50400

0.15

0.30~0.60

0.025

0.025

0.50~1.00

8.00~10.00

0.44~0.65

P11

K11597

0.05~0.15

0.30~0.61

0.025

0.025

0.50~1.00

1.00~1.50

0.44~0.65

P12

K11562

0.05~0.15

0.30~0.60

0.025

0.025

0.5

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

0.5

2.65~3.35

0.80~1.60

P22

K21590

0.05~0.15

0.30~0.60

0.025

0.025

0.5

1.90~2.60

0.87~1.13

P91

K91560

0.08~0.12

0.30~0.60

0.02

0.01

0.20~0.50

8.00~9.50

0.85~1.05

P92

K92460

0.07~0.13

0.30~0.60

0.02

0.01

0.5

8.50~9.50

0.30~0.60

MECHANICAL  PROPERTIES






Hardness

A335 Low-Alloy Pipe

UNS Number

Yield Strength ksi

Tensile Strength ksi

Elongation %

Rockwell

Brinell

P1

K11522

30

55

30

P2

K11547

30

55

30

P5

K41545

40

70

30

207 max

P9

S50400

30

60

30

P11

K11597

30

60

20

P12

K11562

32

60

30

174 max

P22

K21590

30

60

30

P91

K91560

60

85

20

 TOLERANCES DIAMETER

A335 Pipe

Over

Under

NPS [DN]

in.

mm

in.

mm

1/8 to 1 1/2 / DN 6 to 40

1/64 (0.015)

0.4

1/64 (0.015)

0.4

Over 1 1/2 to 4 / DN 40 to 100

1/32 (0.031)

0.79

1/32 (0.031)

0.79

Over 4 to 8 / DN 100 to 200

1/16 (0.062)

1.59

1/32 (0.031)

0.79

Over 8 to 12 / DN 200 to 300

3/32 (0.093)

2.38

1/32 (0.031)

0.79

Over 12 / > DN 300

+/- 1% of the specified outside diameter




ALLOY PIPE CROSS REFERENCE TABLE ASTM VS. EN GRADES

Chrome Moly Pipes: Werkstoff vs EN vs ASTM



Werkstoff /DIN

EN

ASTM

1.5415

16Mo3

A335 Grade P1

1.7335

13CrMo4-5

A335 Grade P11, P12

1.7380

10CrMo9-10

A335 Grade P22

1.7362

X11CrMo5

A335 Grade P5



A335 Grade P9

1.4903

X10CrMoVNb9-1

A335 Grade P91

ASTM A335 Alloy Steel Pipe is used in the energy industry for high temperature and very low-temperature service (cryogenic), or for applications with very high pressures.

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