Alloy Steel Seamless Pipes Tubes | Hallmark Metallica is one of the reputed exporters of Alloy Steel Seamless Pipes Tubes

 


ASTM A335 Alloy Steel Seamless Pipes

This specification covers nominal wall and minimum wall seamless ferritic alloy-steel pipe intended for high temperature service. Pipe ordered to this specification shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding


Alloy Steel Seamless Pipes (IBR APPROVED)


Alloy Steel Seamless Pipes (IBR) offered by us is made of alloy steel and feature exceptional performance properties. These are developed for energy-related applications involving oil & gas drilling and therefore are subjected to stresses in machine parts. Further, Alloy Steel Tubes are also used in domestic, professional or industrial areas.

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Alloy Steel Seamless Pipes (ASME SA335 Grade P5)


Alloy Steel Seamless Pipes (ASME SA335 Grade P5) offered by us are made available in ASME SA335 as well as P1, P5, P9, P11, P12, P91 grades. Our expertise lies in offering these in different sizes & schedules, with IBR & latest edition NACE MR 0175 reports.

Alloy Steel Pipes (ASTM A335 P11)

Alloy Steel Pipes (ASTM A335 P11) offered by us are made as per IBR standards and are used mainly for boiler operations. We source these seamless pipes in varied size range. Further, we can also get these customized as per boiler piping requirements. For ensuring in them optimum quality standards, we source these from quality manufacturers. We also offer clients of having their own mark on them.

Alloy Steel Pipes (ASTM A335 P12)

Alloy Steel Pipes (ASTM A335 P12) offered by us are available with ASTM A335 P12 standard and finds application in industries like Petrochemicals, Refineries, Fertilizers, Pharmaceuticals and others. We can source these seamless pipes in size range of up to 26 inches.

Alloy Seamless Pipes (ASTM A335 Grade P91 NACE)

Alloy Seamless Pipes (ASTM A335 Grade P91 NACE) offered by us are made available in ASTM A335 Grades. Made as per IBR standards, these are mainly used in boiler operations. Further, our expertise lies in offering these pipes in various size range as well as in customized parameters as per boiler piping requirements. Sourced from quality conscious manufacturers, we also offer our clients the option of adding their own mark on them.


ASME Alloy Steel Seamless Tubes / Pipes (SA335 Grade P9)

ASME Alloy Steel Seamless Tubes / Pipes (SA335 Grade P9) manufactured, supplied and exported by us are used for various industrial applications. Our specialization in offering precision engineered alloy steels allow us to deliver these for various engineering applications in various grades like A-387 GR. P1, P5, P9, P11, P12, P22, P91, ASTM A-335 and others. The other specifications include:

» ASTM A335 PIPES
» ASTM A335 GR P5 PIPES
» ASTM A335 GR P9 PIPES
» ASTM A335 GR P11 PIPES
» ASTM A335 GR P22 PIPES
» ASTM A335 GR P91 PIPES


Size Range: 1/8" - 26"
Schedules: 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH


Heat Treatment Requirements


P5, P9, P11, and P22
Grade
Heat Treatment Type
Normalizing Temperature Range F [C]
Subcritical Annealing
or Tempering 
Temperature Range F
[C]
P5 (b,c)
Full or Isothermal Anneal
Normalize and Temper
*****
1250 [675]
Subcritical Anneal (P5c only)
*****
1325 - 1375 [715 - 745]
P9
Full or Isothermal Anneal
Normalize and Temper
*****
1250 [675]
P11
Full or Isothermal Anneal
Normalize and Temper
*****
1200 [650]
P22
Full or Isothermal Anneal
Normalize and Temper
*****
1250 [675]
P91
Normalize and Temper
1900-1975 [1040 - 1080]
1350-1470 [730 - 800]
Quench and Temper
1900-1975 [1040 - 1080]
1350-1470 [730 - 800]

Chemical Requirements

Grade
P-5
P-9
P-11
P-22
P-91
P-91 shall also include the following:
Element
UNS Designation
K41545
S50400
K11597
K21590
K91560

 

Carbon
0.15 max
0.15 max
0.05 - 0.15
0.05 - 0.15
0.08 - 0.12
V at 0.18 - 0.25
Manganese
0.30 - 0.60
0.30 - 0.60
0.30 - 0.60
0.30 - 0.60
0.30 - 0.60
N at 0.030 - 0.070
Phosphorous, max
0.025
0.025
0.025
0.025
0.020
Ni at 0.40 max
Sulfur, max
0.025
0.025
0.025
0.025
0.010
Al at 0.02 max
Silicon
0.50 max
0.25 - 1.00
0.50 - 1.00
0.50 max
0.20 -0.50
Cb at 0.06 - 0.10
Chromium
4.00 - 6.00
8.00 - 10.00
1.00 - 1.50
1.90 - 2.60
8.00 - 9.50
Ti at 0.01 max
Molybdenum
0.45 -0.65
0.90 - 1.10
0.44 - 0.65
0.87 - 1.13
0.85 - 1.05
Zr at 0.01 max










Tensile Requirements

  Seamless  
P-5 P-9 P-11 P-22 P-91 P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC].
Tensile Strength, min., psi
ksi 60 60 60 60 85
MPa 415 415 415 415 585  
Yield Strength, min., psi  
ksi 30 30 30 30 60  
MPa 205 205 205 205 415  
Permissible Variation in Wall Thickness

NPS [DN] Designator
Tolerance, % from Specified
Over
Under
1/8 to 2 1/2 [6 to 65] incl., all t/D ratios
20.0%
12.5%
Above 2 1/2  [65], t/D < or = 5%
22.5%
12.5%
Above 2 1/2  [65], t/D > 5%
15.0%
12.5%
(t = Specified Wall Thickness; D = Specified Outside Diameter)
 
 

Elongation Requirements

Calculated Minimum Elongation Values
Elongation in 2 in. or 50 mm, min %
Wall Thickness
P5, P9, P11, P22
P91
in.
mm
Longitudinal
Transverse
Longitudinal
5/16 (0.312)
8
30
20
20
9/32 (0.281)
7.2
28
19
19
1/4 (0.250)
6.4
27
18
18
7/32 (0.219)
5.6
26
17
3/16 (0.188)
4.8
24
16
5/32 (0.156)
4
22
15
7/8 (0.125)
3.2
21
14
3/32 (0.094)
2.4
20
13
1/18 (0.062)
1.6
18
12















Permissible Variations in Outside Diameter
Outside Diameter at any point shall not vary from standard specified more than:

NPS [DN] Designator
Over
Under
in.
mm
in.
mm
1/8 to 1 1/2 [6 to 40], incl.
1/64 (0.015)
0.40
1/64 (0.015)
0.40
Over 1 1/2 to 4 [40 to 100], incl.
1/32 (0.031)
0.79
1/32 (0.031)
0.79
Over 4 to 8 [100 to 200], incl.
1/16 (0.062)
1.59
1/32 (0.031)
0.79
Over 8 to 12 [200 to 300], incl.
3/32 (0.093)
2.38
1/32 (0.031)
0.79
Over 12 [300]
+/- 1% of the specified outside diameter

Mechanical Tests Specified

Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test
For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot.  For small lots, at least one pipe shall be tested.
For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.
Notes for Hardness Test: P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC].
Notes for Bend Test: For pipe whose diameter exceeds NPS 25 and whose diameter to wall thickness ratio is 7.0 or less shall be subjected to the bend test instead of the flattening test.
Other pipe whose diameter equals or exceeds NPS 10 may be given the bend test in place of the flattening test subject to the approval of the purchaser.
The bend test specimens shall be bent at room temperature through 180 without cracking on the outside of the bent portion.
The inside diameter of the bend shall be 1 inch [25 mm].
Hydrostatic Test Each length of pipe shall be Hydro tested, at option of manufacture nondestructive electric testing can be used.

 

Alloy Steel Tubes (ASME SA213 Grade T11, T22 , T5 , T91)

Alloy Steel Tubes (ASME SA213 Grade T11, T22 , T5 , T91) manufactured and supplied by us are of ASME SA213 Grade. Our expertise lies in offering these in various sizes as well as other specifications as per the required demands. These Alloy Steel Tubes find usage mainly in different industrial applications.

A213 Alloy Boiler Tube  Chemical Requirements


 

C max

Mn max

P max

S max

Si min

Cr max

Ni max

Mo max

Cu Max

T5

0.15

0.3-0.6

0.025

0.025

0.5

4.0-6.0

 

0.45-0.65

 

T11

0.05-0.15

0.3-0.6

0.025

0.025

0.5-1.0

1.0-1.5

 

0.44-0.65

 

T12

0.05-0.15

0.3-0.61

0.025

0.025

0.50

0.8-1.25

 

0.44-0.65

 

T22

0.05-0.15

0.3-0.6

0.025

0.025

0.5-1.0

1.9-2.6

 

0.87-1.13

 

T91

 

 

 

 

 

 

 

 

 


A213 Alloy Boiler Tube  Mechanical Test

 

 

Tensile(Mpa)

Yeild(Mpa)

Elongation(%)

Hardness MAX

T5

415

205

30

89HRB

T11

...

...

...

...

T12

415

220

30

85HRB

T22

...

...

...

...