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Alloy Steel ASTM A335 P91 Pipes & Tubes

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Grade P91 Cr-Mo Pipes & Tubes, Ready Stock Of CrMo P91 Tubing, Alloy Steel A335 P91 Pipes, P91 Alloy Steel Seamless Tubes, Manufacturer of ASTM A335 Alloy Steel P91 Welded Tube Supplier in Mumbai.

Unifit Metal Alloys is a well-known exporter and seller of AS ASTM A335 P91 Pipes & Tubes, which are highly reactive, and pure iron is very soft and readily rusts (oxidises).

Alloy Steel ASME SA 335 P91 Seamless Pipes was known in antiquity and may have been manufactured in howlers and crucibles. Its facilities would turn raw steel into ingots, which would then be kept until they were used in subsequent refinement processes that culminated in the final product. It is near to the final makeup in contemporary facilities and is constantly cast into long slabs, cut and shaped into bars and extrusions, and heat treated to create a finished product. It includes at least 11% chromium, which is frequently mixed with nickel to prevent corrosion.

A335 Grade Cr-Mo P91 Bush Hex Pipe, Grade P91 Welded Pipes, Alloy Steel P91 90 Square Pipe, ANSI B16.9 Alloy Steel A335 P91 Heat Ex-changer Tubes, P91 Alloy Steel Electropolish Pipe, Grade P91 Cr-Mo Seamless Pipes, Alloy Steel ASTM A335 P91 Butt Weld Fittings, Chrome-Moly P91 ERW Pipes Manufacturer In Mumbai, India.

The corrosion resistance of ASTM A335 Alloy Steel P91 Welded Tubes is reduced, allowing the use of precipitation hardening and improving the alloy's thermal resistance. To optimise solution hardening, tool steels are alloyed with significant amounts of tungsten, cobalt, or other elements. They are commonly found in axes, drills, and other tools that require a precise, long-lasting cutting edge. By taking on the duty of job works as these products, we are productively supplying the needs of small scale, large scale, and middle size industries all over the globe.

We have achieved a deserving status in the industry as a result of our rational trade practise and flawless quality of as this ASME SA 335 Alloy Steel P91 Electropolish Pipes, combined with our affluent subject skill. Apart from the production of other steels, our base is linked by all of the necessary equipment and machinery that supports us in providing this product. These products are also well known for their superior tensile strength, compact finish, vibration-free operation, and accurate designs. Our custom practise and familiarity have evolved over years of dealing with plastic, rubber, foam, composites, and other related specialised materials. We can assist you in forming this steel or creating to a standard design, with no job too large or small for our standard forging specialists.

Alloy Steel ASTM A335 P91 Pipes & Tubes

Get a best quote for Alloy Steel ASTM A335 P91 Pipes & Tubes, We Keep Bulk Stock of Alloy Steel P91 Seamless Bare Pipe at our stockyard, contact us to request a quote.

AS ASTM A335 P91 Pipes & Tubes Specifications

AS P91 Pipes & Tubes Specifications ASTM A335, A249, A269, A358 / ASME SA335, SA249, SA269, SA358
Dimensional specification ANSI/ASME B36.19M, ANSI/ASME B36.10M
ASTM A335 TP AS P91 Seamless Pipe & Tube Size 1 / 2" NB - 16" NB
ASTM A335 TP AS P91 Welded Pipe & Tube Size 1 / 2" NB - 24" NB
ASTM A358 TP AS P91 EFW Pipe & Tube Size 6" NB - 24" NB
Outside Diameter 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock
AS P91 Pipes & Tubes Manufacturing Shapes Hydraulic, Round, Rectangle, Square, Hex, Honed
AS P91 Pipe & Tube Manufacturing Techniques Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded
Alloy Steel P91 Pipe & Tube Schedule Thickness Range SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
AS P91 Pipes & Tubes End Types Plain End, Beveled End, Treaded One End, TBE (Treaded Both Ends)
Delivery Condition of AS P91 Pipe & Tube Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Surface Finish No.1, No.4, No.8 Mirror Finish, 2B
Value Added Services Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing
Inspection and Test Reports EN 10204 3.1, Mill Test Certificates, Chemical Reports, PMI Test Reports, Mechanical Reports, Third Party Inspection, NABL Approved Lab, Visual Inspection, Destructive Test and Non Destructive Test Reports
Marking Specification
Grade
Nominal Pipe Sizes
Pipe Schedule or Wall Thickness
Manufacturing Method (Seamless / Welded)
Heat Number
Manufacturer’s Name or Custom Logo - on request
Marked Pipe Sample: ANSI B36.19 ASTM A 312 TP 304 12" NB SCH 40S SEAMLESS HEAT NO. XXXX
Outside Finish 2B, No.4, No.1, No.8 Mirror Finish for Alloy Steel Pipes, Finish as per customer Requirements
Delivery Condition Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Packing of AS P91 Pipes & Tubes Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials Sizes and Specifications other than above can be on request

Alloy Steel ASTM A335 P91 Pipes & Tubes Chemical Composition

C, %P, %Mn, %S, %Si, %Cr, %Mo, %
0.08-0.120.020 max0.30-0.600.010 max0.20 -0.508.00 - 9.500.85 - 1.05

P91 Alloy Steel Pipes & Tubes Mechanical Properties

Tensile Strength, MPa

Yield Strength, MPaElongation, %
585 min415 min20 min

Various Types Of Alloy Steel ASTM A335 P91 Pipes & Tubes

AS A335 P91 Seamless Pipe

AS A335 P91 Seamless Pipe

Alloy Steel ASTM A335 P91 Seamless Pipe ANSI B16.9 CrMo P91 Seamless Pipe P91 Alloy Steel 90 Seamless Pipe Grade P91 Alloy 45 Seamless Pipe
AS A335 P91 Welded Pipe

AS A335 P91 Welded Pipe

ANSI B16.9 P91 CrMo Welded Pipe Grade P91 Alloy Steel Welded Pipe Type Gr. P91 Welded Pipe P91 Alloy Steel Welded Pipe
AS A335 P91 EFW Pipe

AS A335 P91 EFW Pipe

ANSI B16.9 CrMo P91 EFW Pipe Alloy Steel A335 P91 EFW Pipe Cr-Mo A335 P91 EFW Pipe P91 Alloy Steel EFW Pipe
AS A335 P91 ERW Pipe

AS A335 P91 ERW Pipe

P91 Alloy Steel ERW Pipe Cr-Mo Grade P91 ERW Pipe Grade P91 Alloy ERW Pipe ANSI B16.9 AS P91 ERW Pipe
AS A335 P91 Electropolish Pipe

AS A335 P91 Electropolish Pipe

Chrome Moly P91 Electropolish Pipe ANSI B16.9 CrMo P91 Electropolish Pipe Alloy Steel ASTM A335 P91 Electropolish Pipe P91 Chrome Moly Electropolish Pipe
AS A335 P91 Square Pipe

AS A335 P91 Square Pipe

ANSI B16.9 P91 CrMo Square Pipe A335 Alloy Steel P91 Square Pipe Chrome-Moly P91 Square Pipep AS A335 P91 Square Pipe
AS A335 P91 Hollow Pipes

AS A335 P91 Hollow Pipes

Grade Cr-Mo P91 Hollow Pipes Grade P91 Alloy Hollow Pipes ANSI B16.9 AS P91 Hollow Pipes Alloy Steel ASTM A335 P91 Hollow Pipes
AS A335 P91 Round Pipe

AS A335 P91 Round Pipe

Alloy Steel P91 Round Pipe ANSI B16.9 CrMo P91 Round Pipe A335 Alloy Steel P91 Round Pipe Grade P91 Alloy Round Pipe

Alloy Steel ASTM A335 P91 Pipes & Tubes Pipes Size Range

NPS OD SCH 5S SCH 10S SCH 40S SCH 80S
1/4 13.72 1.65 2.24 3.02
3/8 17.15 1.65 2.31 3.2
1/2 21.34 1.65 2.11 2.77 3.73
3/4 26.67 1.65 2.11 2.87 3.91
1 33.4 1.65 2.77 3.38 4.55
1.25 42.16 1.65 2.77 3.56 4.85
1.5 48.26 1.65 2.77 3.68 5.08
2 60.33 1.65 2.77 3.91 5.54
2.5 73.03 2.11 3.05 5.16 7.01
3 88.9 2.11 3.05 5.49 7.62
3.5 101.6 2.11 3.05 5.74 8.08
4 114.3 2.11 3.05 6.02 8.56
5 141.3 2.77 3.4 6.55 9.53
6 168.28 2.77 3.4 7.11 10.97
8 219.08 2.77 3.76 8.18 12.7
10 273.05 3.4 4.19 9.27 12.7
12 323.85 3.96 4.57 9.53 12.7
14 355.6 3.96 4.78 9.53 12.7
16 406.4 4.19 4.78 9.53 12.7
18 457.2 4.19 4.78 9.53 12.7
20 508 4.78 5.54 9.53 12.7
22 558.8 4.78 5.54
24 609.6 5.54 6.35 9.53 12.7
26 660.4
28 711.2
30 762 6.35 7.92

Alloy Steel P91 Pipes & Tubes Weight Chart & Dimensions

PIPE
SIZE
OD
IN
INCHES
Pipe Schedules
5s
5
10s
10
20
30
40s
& Std.
40
60
80s
& E.H.
80
100
120
140
160
DBL
E.H.
1/8
.405
 
.035
.1383
.049
.1863
.049
.1863
 
 
.068
.2447
068
.2447
 
0.95
.3145
0.95
.3145
 
 
 
 
 
1/4
.540
 
.049
.2570
.065
.3297
.065
.3297
 
 
.088
.4248
088
.4248
 
.119
.5351
.119
.5351
 
 
 
 
 
3/8
.675
 
.049
.3276
.065
.4235
.065
.4235
 
 
.091
.5676
.091
.5676
 
.126
.7338
.126
.7338
 
 
 
 
 
1/2
.840
.065
.5383
.065
.5383
.083
.6710
.083
.6710
 
 
.109
.8510
.109
.8510
 
.147
1.088
.147
1.088
 
 
 
.187
1.304
.294
1.714
3/4
1.050
.065
.6838
.065
.6838
.083
.8572
.083
.8572
 
 
.113
1.131
.113
1.131
 
.154
1.474
.154
1.474
 
 
 
.218
1.937
.308
2.441
1
1.315
.065
.8678
.065
.8678
.109
1.404
.109
1.404
 
 
.133
1.679
.133
1.679
 
.179
2.172
.179
2.172
 
 
 
.250
2.844
.358
3.659
1-1/4
1.660
.065
1.107
.065
1.107
.109
1.806
.109
1.806
 
 
.140
2.273
.140
2.273
 
.191
2.997
.191
2.997
 
 
 
.250
3.765
.382
5.214
1-1/2
1.900
.065
1.274
.065
1.274
.109
2.085
.109
2.085
 
 
.145
2.718
.145
2.718
 
.200
3.631
.200
3.631
 
 
 
.281
4.859
.400
6.408
2
2.375
.065
1.604
.065
1.604
.109
2.638
.109
2.638
 
 
.154
3.653
.154
3.653
 
.218
5.022
.218
5.022
 
 
 
.343
7.444
.436
9.029
2-1/2
2.875
.083
2.475
.083
2.475
.120
3.531
.120
3.531
 
 
.203
5.793
.203
5.793
 
.276
7.661
.276
7.661
 
 
 
.375
10.01
.552
13.70
3
3.500
.083
3.029
.083
3.029
.120
4.332
.120
4.332
 
 
.216
7.576
.216
7.576
 
.300
10.25
.300
10.25
 
 
 
.437
14.32
.600
18.58
3-1/2
4.000
.083
3.472
.083
3.472
.120
4.973
.120
4.973
 
 
.226
9.109
.226
9.109
 
.318
12.51
.318
12.51
 
 
 
 
.636
22.85
4
4.500
.083
3.915
.083
3.915
.120
5.613
.120
5.613
 
 
.237
10.79
.237
10.79
.281
12.66
.337
14.98
.337
14.98
 
.437
19.01
 
.531
22.51
.674
27.54
4-1/2
5.000
 
 
 
 
 
 
.247
12.53
 
 
.355
17.61
 
 
 
 
 
.710
32.53
5
5.563
.109
6.349
.109
6.349
.134
7.770
.134
7.770
 
 
.258
14.62
.258
14.62
 
.375
20.78
.375
20.78
 
.500
27.04
 
.625
32.96
.750
38.55
6
6.625
.109
7.585
.109
7.585
.134
9.290
.134
9.290
 
 
.280
18.97
.280
18.97
 
.432
28.57
.432
28.57
 
.562
36.39
 
.718
45.30
.864
53.16
7
7.625
 
 
 
 
 
 
.301
23.57
 
 
.500
38.05
 
 
 
 
 
.875
63.08
8
8.625
.109
9.914
.109
9.914
.148
13.40
.148
13.40
.250
22.36
.277
24.70
.322
28.55
.322
28.55
.406
35.64
.500
43.39
.500
43.39
.593
50.87
.718
60.93
.812
67.76
.906
74.69
.885
72.42
9
9.625
 
 
 
 
 
 
.342
33.90
 
 
.500
48.72
 
 
 
 
 
 
10
10.750
.134
15.19
.134
15.19
.165
18.65
.165
18.70
.250
28.04
.307
34.24
.365
40.48
.365
40.48
.500
54.74
.500
54.74
.593
64.33
.718
76.93
.843
89.20
1.000
104.10
1.125
115.70
 
11
11.750
 
 
 
 
 
 
.375
45.55
 
 
.500
60.07
 
 
 
 
 
 
12
12.750
.156
21.07
.165
22.18
.180
24.16
.180
24.20
.250
33.38
.330
43.77
.375
49.56
.406
53.53
.562
73.16
.500
65.42
.687
88.51
.843
107.20
1.000
125.50
1.125
139.70
1.312
160.3
 
14
14.000
.156
23.07
 
.188
27.73
.250
36.71
.312
45.38
.375
54.57
.375
54.57
.437
63.37
.593
84.91
.500
72.09
.750
106.10
.937
130.70
1.093
150.70
1.250
170.20
1.406
189.10
 
16
16.000
.165
27.90
 
.188
31.75
.250
42.05
.312
52.36
.375
62.58
.375
62.58
.500
82.77
.656
107.50
.500
82.77
.843
136.50
1.031
164.80
1.218
192.30
1.427
223.50
1.593
245.10
 
18
18.000
.165
31.43
 
.188
35.76
.250
47.39
.312
59.03
.437
82.06
.375
70.59
.562
104.20
.750
138.20
.500
93.45
.937
170.80
1.156
208.00
1.375
244.10
1.562
274.20
1.781
308.50
 
20
20.000
.188
39.78
 
.218
46.05
.250
52.73
.375
78.60
.500
104.10
.375
78.60
.593
122.90
.812
166.40
.500
104.10
1.031
208.90
1.280
256.10
1.500
296.40
1.750
341.10
1.968
379.00
 
22
22.000
.188
43.80
 
.218
50.71
.250
58.07
.375
86.61
.500
114.81
.375
86.61
 
.875
197.41
.500
114.81
1.125
250.81
1.375
302.88
1.625
353.61
1.875
403.00
2.125
451.06
 
24
24.000
.218
55.37
 
.250
63.41
.250
63.41
.375
94.62
.562
140.80
.375
94.62
.687
171.20
.968
238.10
.500
125.50
1.218
296.40
1.531
367.40
1.812
429.40
2.062
483.10
2.344
542.13
 
26
26.000
 
 
 
.312
85.60
.500
136.17
 
.375
102.63
 
 
.500
136.17
 
 
 
 
 
 
28
28.000
 
 
 
.312
92.26
.500
146.85
.625
182.73
.375
110.64
 
 
 
 
 
 
 
 
 
30
30.000
.250
79.43
 
.312
98.93
.312
98.93
.500
157.53
.625
196.08
.375
118.65
 
 
.500
157.53
 
 
 
 
 
 
32
32.000
 
 
 
.312
105.59
.500
168.21
.625
209.43
.375
126.66
.688
230.08
 
.500
168.21
 
 
 
 
 
 
34
34.000
 
 
 
.312
112.25
.500
178.89
.625
222.78
.375
134.67
.688
244.77
 
 
 
 
 
 
 
 
36
36.000
 
 
 
.312
118.92
 
.625
236.13
.375
142.68
.750
282.35
 
.500
189.57
 
 
 
 
 
 
Medium Type = Wall thickness in inches
Bold Type = Steel weight per foot in pounds

Alloy Steel ASTM A335 P91 Pipes & Tubes Outside Diameter

Nominal size [inches] Outside diameter [inches] Outside diameter [mm] Wall thickness [inches] Wall thickness [mm] Weight [lb/ft] Weight [kg/m]
1/2 0.840 21.3 0.083 2.11 0.68 1.00
3/4 1.050 26.7 0.083 2.11 0.87 1.29
1 1.315 33.4 0.109 2.77 1.41 2.11
1 1/4 1.660 42.2 0.109 2.77 1.82 2.71
1 1/2 1.900 48.3 0.109 2.77 2.1 3.13
2 2.375 60.3 0.109 2.77 2.66 3.96
2 1/2 2.875 73.0 0.120 3.05 3.56 5.29
3 3.500 88.9 0.120 3.05 4.37 6.50
3 1/2 4.000 101.6 0.120 3.05 5.01 7.46
4 4.500 114.3 0.120 3.05 5.66 8.42
5 5.563 141.3 0.134 3.40 7.82 11.64
6 6.625 168.3 0.134 3.40 9.35 13.91
8 8.625 219.1 0.148 3.76 13.50 20.10
10 10.750 273.1 0.165 4.19 18.79 27.96
12 12.750 323.9 0.180 4.57 24.34 36.22
14 14.000 355.6 0.188 4.78 27.97 41.62
16 16.000 406.4 0.188 4.78 32.02 47.65
18 18.000 457.0 0.188 4.78 36.05 53.65
20 20.000 508.0 0.218 5.54 46.42 69.09
22 22.000 559.0 0.218 5.54 51.14 76.10
24 24.000 610.0 0.250 6.35 63.93 95.13
30 30.000 762.0 0.312 7.92 99.60 148.22

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Ready Stock of Alloy Steel A335 P91 Pipes & Tubes

  • Grade P91 Cr-Mo Boiler Tube
  • Alloy Steel ASTM A335 P91 Industrial Pipes
  • A335 Alloy Steel P91 Beveled End Pipes
  • Grade Cr-Mo P91 Tubes Stockist
  • AS A335 P91 Tubing
  • Grade P91 Alloy Steel Cold Drawn Pipes
  • ASTM A335 Cr-Mo P91 Pipes & Tubes
  • P91 Alloy Steel Square Pipe
  • ANSI B16.9 Alloy Steel P91 Superheater Tubes
  • AS A335 P91 Custom Pipe
  • Alloy Steel P91 Thick Wall Pipe
  • AS P91 Pipes Supplier
  • Grade P91 Alloy Thin Wall Pipe Manufacturer
  • P91 CrMo Heat Ex-changer Tubes
  • Custom Alloy Steel P91 90° Hydraulic Pipes
  • ASTM A335 AS P91 EFW Pipes
  • Gr P91 Alloy Steel Round Pipe
  • ASTM A335 AS P91 Bush Hex Pipe
  • AS EN 10217-7 Welded Pipe
  • Alloy Steel P91 Seamless Tubes
  • ASME SA335 P91 Alloy Steel Round Pipe
  • Type Gr. P91 ERW Pipe
  • CrMo P91 Bush Hex Pipe

  • Alloy Steel ASTM A335 P91 Industrial Pipes
  • Grade P91 Alloy 90° Pipe
  • ASTM A335 P91 Alloy Steel Tubes
  • Grade Cr-Mo P91 Hydraulic Pipe
  • Alloy Steel P91 Pipes
  • ASTM A335 P91 Cr-Mo Beveled End Pipe Manufacturer
  • Gr P91 Alloy Steel LSAW Pipes Ready Stock
  • Type Gr. P91 Seamless Piping Manufacturer
  • A335 Custom Alloy Steel P91 Seamless Bare Pipe
  • ANSI B16.9 P91 Alloy Steel Thick Wall Pipe
  • Cr-Mo A335 P91 Pipes & Tubes
  • Alloy Steel 16Mo3 Bush Hex Pipe
  • ASME SA335 AS P91 Tubing Stockholder
  • P91 Alloy Steel Large Pipes
  • Alloy Steel ASTM A335 P91 Capillary Pipe
  • P91 Alloy Steel Welded Pipes
  • ASME B16.9 P91 Alloy Steel Welded Tube
  • Grade P91 Heat Ex-changer Tubes
  • P91 Chrome-Moly Cold Drawn Pipes
  • Chrome Moly P91 Seamless Tubes
  • ANSI B16.9 Alloy Steel P91 Custom Pipe
  • Grade P91 Alloy Steel Electropolished Pipes
  • SA335 Alloy Steel P91 Hollow Pipes Exporter

AS ASTM A335 P91 Pipes & Tubes Application Industries

Application Industries

Refineries

90%

Oil and Gas Industry

96%

Power Generation

80%

Pharmaceutical Equipment

85%

Pulp & Paper Industry

88%