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介绍

Alloy Pipes

Specification:

ASTM A335 is a ASTM standard specifies Seamless Ferritic Alloy Steel Pipe for High-Temperature Service. ASTM A335 pipe ordered to this specification shall be suitable for bending and similar forming operations, and for fusion welding. Selection will depend upon design, service conditions, mechanical properties, and high-temperature characteristics.

Steel Grade:

ASTM A335 GR P5 | GR P9 | GR P11 | GR P22 | GR P91 | GR P92.

Size (mm): O.D.: 51-508; W.T.:7∼60; L: max 12000 and other specifications in accordance with customer requirements.

Size (mm) we can supply:

Hot-rolled: O.D.: 51-508; W.T.:7∼60; L: max 16000

Cold-drawn: O.D.: 10-50; W.T.:2∼10; L: max 16000

Hot-expanded:O.D.: 325-1020; W.T.:6∼50; L: max 12000 and other specifications in accordance with customer requirements.

Packing:

Beveled/black painting/ plastic caps/ in bundles/ steel strips/ wooden protection

Inspection and Test:

Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength, Yield Strength,Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test, Nodestructive Test, Hydrostatic Test.

Surface Treatment:

Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting,Epoxy & Fbe Coating

Painting as requested.

Mechanical Properties:

Standard

Steel Grade

Tensile Strength (MPa)

Yield Strength (MPa)

Elongation (%)

Impact Energy(J)

Rigidity

ASME SA335

SA335 P11

≥415

≥205

≥22

≥35

≤163HB

SA335 P12

≥415

≥220

≥22

≥35

≤163HB

SA335 P22

≥415

≥205

≥22

≥35

≤163HB

SA335 P5

≥415

≥205

≥22

≥35

≤187HB

SA335 P91

585∼760

≥415

≥20

≥35

≤250HB

SA335 P92

≥620

≥440

≥20

≥35

≤250HB

Grade and Chemical Composition (%)

Grade

C

Mn

P, S, max

Si

Cr

Mo

P11

0.05-0.15

0.30-0.60

0.025

0.50-1.00

1.00-1.50

0.44-0.65

P22

0.05-0.15

0.30-0.60

0.025

0.50 max

1.90-2.60

0.87-1.13

P5

0.15 max

0.30-0.60

0.025

0.50 max

4.00-6.00

0.45-0.65

P9

0.15 max

0.30-0.60

0.025

0.25-1.00

8.00-10.00

0.90-1.10

P91

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 0.03-0.07

Ni 0.40 max

Al 0.02 max

Nb 0.06-0.10

Ti 0.01 max

P92

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

Nb 0.04-0.09

W 1.50-2.00

       

B 0.001-0.006

Ti 0.01 max

Zr 0.01 max

Ordering Information

Orders for material under this specification should include the following, as required, to describe the desired material adequately:

Quantity

Feet, meters, or number of lengths

Name of material

Seamless Alloy Steel Pipe

Grade

STANDARD AND STEEL GRADE

Manufacture

Hot-finished or cold-drawn

Size using one of the following:

NPS and Schedule Number

Outside Diameter and Nominal Wall Thickness

Length

Specific or Random

End Finish

 

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