ASTM A106 GR. B Carbon Steel Pipes

carbon steel Products

ASTM A106 Grade B Carbon Steel Pipes

Home » ASTM A106 GR. B Carbon Steel Pipes

Table of Content

Get In Touch

ASTM A106 Grade B Carbon Steel Pipes Manufacturer & Supplier in India

ASTM A106 Grade B Pipe is a grade and standard specification for carbon steel pipes, made to be used for high-temperature and high-pressure service. Lakshay Steel is a top manufacturer and supplier of these a106 gr b pipes, and carries a variety of sizes and amounts. The ASTM A106 specification includes three grades; A, B and C, where B is the most common.

The A106 Grade B Seamless Pipe will be used substantially in applications where hot gases and fluids are transferred, and the pipes’ ability to withstand these temperatures is essential to the efficiency of the plant energy use. Although technically we refer to these pipes in general as astm a106 gr b pipes, different pressure classes are associated with the pipes according to their schedules. For example, if you were to purchase a standard ASTM A106 Gr B Sch 40 pipe it would be in the mid range of all of the pressure classes available to the a106 product line for hot and cold pressure use, and scheduled pipe refers to what pressure class you are using for the intended applications ranging from mild (low) to mid (medium) pressure capabilities.

This style of pipe has many applications including pipeline systems for the oil and gas sector, and mineral slurry, it is also applied to boiler systems, and other construction and structural applications. ASTM A106 grade B pipe is equivalent to ASTM A53 grade B and API 5L grade B in chemical composition and mechanical properties. The ASTM A106 is a carbon steel pipe having a minimum yield strength of 240 MPa (35,000 psi) minimum, and a minimum tensile strength of 415 MPa (60,000 psi).

The ASTM A106 Gr.B Material applications can also be seen in Shipbuilding, Marine Applications, Oil and Gas Refineries, Petrochemical Plants, and many others. Lakshay Steel A106 Gr.B Material is uniformly high mass standard, high strength, high accuracy, and wear and tear resistant material. Sizes of the A106 Grade B Pipe will vary depending on standards and application as the size range required is typically between 1/8 inch and 48 inches.

Contact Lakshay Steel to get the quote for all your a106 gr b pipes requirements.

Get In Touch

ASTM A106 Gr.B Material Grade Specifications

Property Specification
Standards ASTM, ASME and API, ANSI B 36.10
Craft Cold rolled and Cold drawn
ANSI Standard B1.20.
Grades ASTM A106 Grade A, Grade B, Grade C
Type ERW / Seamless / Fabricated / Welded
Size 1/2” NB to 36” NB (Up to 48″ as per A106 spec)
Length Minimum 3 Meters, Maximum 18 Meters, Custom Lengths
Thickness 3-12mm (Wider range available based on schedule)
Specialized in Large Diameter ASTM A106 Grade B Pipe
Schedules Schedule 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
ASME Standard B36.10M
Tolerance Cold drawn pipe: +/-0.1mm <br> Cold rolled pipe: +/-0.05mm
End Plain End, Beveled End, Threaded

Chemical Composition of ASTM A106 Pipes

Element Grade A (Max %) Grade B (Max %) Grade C (Max %)
Carbon (C) 0.25 0.30 0.35
Manganese (Mn) 0.27-0.93 0.29-1.06 0.29-1.06
Sulfur (S) ≤ 0.035 ≤ 0.035 ≤ 0.035
Phosphorus (P) ≤ 0.035 ≤ 0.035 ≤ 0.035
Silicon (Si) ≥ 0.10 (Min) ≥ 0.10 (Min) ≥ 0.10 (Min)
Chrome (Cr) ≤ 0.40 ≤ 0.40 ≤ 0.40
Copper (Cu) ≤ 0.40 ≤ 0.40 ≤ 0.40
Molybdenum(Mo) ≤ 0.15 ≤ 0.15 ≤ 0.15
Nickel (Ni) ≤ 0.40 ≤ 0.40 ≤ 0.40
Vanadium (V) ≤ 0.08 ≤ 0.08 ≤ 0.08

ASTM A106 Grade B Tensile and Yield Strength

Property Grade A Grade B Grade C
Tensile Strength, min, psi [MPa] 48,000 [330] 60,000 [415] 70,000 [485]
Yield Strength, min, psi [MPa] 30,000 [205] 35,000 [240] 40,000 [275]

Elongation

  • In 2 in. [50mm], shall be calculated by: e = 625,000 A^0.2 / U^0.9
  • For inch-pound Units, e = 1,940,000 A^0.2 / U^0.9
    • (Where ‘e’ is the minimum elongation in 2 in. [50 mm], ‘A’ is the cross-sectional area of the tensile test specimen, and ‘U’ is the specified minimum tensile strength.)
  • Minimum Elongation % (in 2 in or 50mm):
    • For all small sizes tested in full section, basic minimum elongation transverse trip tests:
      • Grade A: Longitudinal 35, Transverse 25
      • Grade B: Longitudinal 30, Transverse 16.5
      • Grade C: Longitudinal 30, Transverse 16.5
    • In case standard round 2 inch gage length test sample is used, above values are:
      • Grade A: 28, 20
      • Grade B: 22, 12
      • Grade C: 20, 12

ASTM A106 Grade B Carbon Steel Pipe Size Range & Dimensions Schedule

  • Size Range: 1/2” NB to 36” NB. The standard covers pipe sizes in NPS (National Standard Straight) from 1/8 inch to 48 inches (10.3mm DN6 – 1219mm DN1200) for a106 gr b pipes.
  • Thickness: Schedules 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier. It also complies with the nominal wall thickness specified in ASME B 36.10M. For sizes that are not covered by ASME B 36.10M, this standard specification can still be used.
  • Grades:ASTM A106 Grade A, ASTM A106 Grade B, ASTM A106 Grade C
  • Applications: Oil Refineries, Petrochemicals, Power Generation (Nuclear/Thermal), Steel, Sugar, Boiler Equipments, Pressure Vessels and General Engineering Purposes.

Grade Types & Test Methods for astm a106 gr b pipes

The ASTM A106 standard for seamless steel pipes includes three grades: Grade A, Grade B, and Grade C. As the grade increases, the material’s strength and performance also improve. Lakshay Steel ensures all a106 gr b pipes meet these stringent requirements.

Test Methods:

The test methods for ASTM A106 grades B pipes supplied by Lakshay Steel include:

  • Flattening tests
  • Hydrostatic tests
  • Nondestructive electric tests (NDE)
  • Ultrasonic tests
  • Eddy current tests
  • Flux leakage tests
These test procedures can be discussed and confirmed with the client to determine which specific tests will be applied to your order of astm a106 gr b pipes.

Carbon Steel A106 Seamless Pipes Price list

Size MSL Make ISMT make JSL Make
1/2″ 1,323.53 1,316.18 1,330.88
3/4″ 1,102.94 1,095.59 1,110.29
1″ 955.88 948.53 963.24
1.25″ 911.76 904.41 919.12
1.5″ 808.82 801.47 816.18

A106 Steel Pipes Weight Chart

Size Pipe # Other Diameter (in) Pipe I.D. (in) WT (in) Schedule / Standard Weight (lb/ft) Section Modulus (in³) Gallon Capacity per Foot
1/2 0.840 0.622 0.109 40 / STD 0.85 .0407 .0158
    0.546 0.147 80 / XHY 1.09 .0478 .0122
    0.464 0.188 160 1.31 .0528 .0088
3/4 1.050 0.824 0.113 40 / STD 1.13 .0705 .0277
    0.742 0.154 80 / XHY 1.48 .0853 .0225
    0.612 0.219 160 1.95 .1006 .0153
1 1.315 1.049 0.133 40 / STD 1.68 .1328 .0449
    0.957 0.179 80 / XHY 2.17 .1606 .0374
    0.815 0.250 160 2.85 .1904 .0271
1 1/4 1.660 1.380 0.140 40 / STD 2.27 .2346 .0777
    1.278 0.191 80 / XHY 3.00 .2913 .0666
    1.160 0.250 160 3.77 .3421 .0549
1 1/2 1.900 1.610 0.145 40 / STD 2.72 .3262 .1058
    1.500 0.200 80 / XHY 3.63 .4118 .0918
    1.338 0.281 160 4.86 .5079 .0730
2 2.375 2.157 0.109 10 2.64 .4205 .1898
    2.067 0.154 40 / STD 3.66 .5606 .1743
    1.939 0.218 80 / XHY 5.03 .7309 .1534
    1.875 0.250   5.68 .8045 .1434
    1.813 0.281   6.29 .8666 .1344
    1.687 0.344 160 7.47 .9806 .1161
2 1/2 2.875 2.635 0.120 10 3.53 .6870 .2833
    2.469 0.203 40 / STD 5.80 1.0640 .2487
    2.443 0.216   6.14 1.1169 .2435
    2.375 0.250   7.02 1.2468 .2301
    2.323 0.276 80 / XHY 7.67 1.3386 .2202
    2.125 0.375 160 10.02 1.6371 .1842
3 3.500 3.260 0.120   4.34 1.0411 .4336
    3.188 0.156   5.58 1.3122 .4147
    3.156 0.172   6.12 1.4265 .4064
    3.124 0.188   6.66 1.5342 .3984
    3.068 0.216 40 / STD 7.58 1.7241 .3840
    3.000 0.250   8.69 1.9372 .3672
    2.938 0.281   9.67 2.1207 .3521
    2.900 0.300 80 / XHY 10.26 2.2253 .3431
    2.624 0.438 160 14.34 2.8774 .2811
3 1/2 4.000 3.760 0.120 10 4.98 1.3776 .5768
    3.548 0.226 STD (Not 40 for this size) 9.12 2.3939 .5136
    3.500 0.250   10.02 2.6001 .4998
    3.438 0.281   11.17 2.8562 .4821
    3.364 0.318 80 / XHY 12.52 3.1400 .4617
4 4.500 4.260 0.120 10 5.62 1.7612 .7404
    4.188 0.156   7.24 2.2354 .7156
    4.124 0.188   8.67 2.6296 .6942
    4.094 0.203   9.32 2.8173 .6838
    4.062 0.219   10.02 3.0184 .6725
    4.026 0.237 40 / STD 10.80 3.2145 .6613
    4.000 0.250   11.36 3.3611 .6528
    3.938 0.281 60 12.67 3.7021 .6326
    3.876 0.312   13.97 4.0273 .6126
    3.826 0.337 80 / XHY 15.00 4.2713 .5972
    3.624 0.438 120 19.02 5.1790 .5361
    3.438 0.531 160 22.53 5.8997 .4822
5 5.563 5.187 0.188   10.80 4.1161 1.0979
    5.125 0.219   12.51 4.7279 1.0716
    5.047 0.258 40 / STD 14.63 5.4500 1.0391
    5.001 0.281   15.87 5.8644 1.0204
    4.939 0.312   17.51 6.4074 .99647
    4.875 0.344   19.19 6.9358 .9696
    4.813 0.375 80 / XHY 20.80 7.4300 .9449
    4.563 0.500 120 27.06 9.2534 .8495
    4.313 0.625 160 32.99 10.7976 .7590
6 6.625 6.407 0.109 5 7.59 3.5769 1.6748
    6.357 0.134 10 9.30 4.3475 1.6488
    6.313 0.156   10.79 5.0107 1.6260
    6.249 0.188   12.94 5.9351 1.5937
    6.219 0.203   13.94 6.3804 1.5780
    6.187 0.219   15.00 6.8261 1.5620
    6.125 0.250   17.04 7.6905 1.5306
    6.065 0.280 40 / STD 18.99 8.4958 1.5008
    6.001 0.312   21.06 9.3416 1.4688
    5.937 0.344   23.10 10.111 1.4391
    5.875 0.375   25.05 10.893 1.4082
    5.761 0.432 80 / XHY 28.60 12.224 1.3541
    5.625 0.500   32.74 13.711 1.2909
    5.501 0.562 120 36.43 14.9806 1.2346
    5.375 0.625   40.09 16.1821 1.1787
    5.187 0.719 160 45.39 17.8243 1.0977
    4.897 0.864 XXHY 53.21 20.025 .9784
    4.625 1.000   60.13 21.7719 .8727
    4.375 1.125   66.14 23.1237 .7809

Various types of SA106 Gr B Carbon Steel ERW & Seamless Pipe

Lakshay Steel offers a wide variety of ASTM A106 Grade B pipes, including:
  • ASTM A106 Grade B sch40 seamless steel pipe
  • Seamless DN80 SCH STD 6M ASTM A106 Gr.B
  • 10 Inch SCH80 ASTM A106 Grade B Seamless steel pipe 
  • ASTM A106 grade b PSL1 / PSL2 seamless steel pipe
  • ASTM A106 GR.B 4 inch SCH 40
  • ASTM A106 Grade B MS Seamless Pipe 1/2 Inch To 24 Inch Sch 40
  • Black 1 Inch Schedule 40 ASTM A106 Grade B Seamless Steel Pipe
  • ASTM A106 B SCH STD (e.g., 219.1MM * 8.18MM)
  • Seamless 14inch SCH120 6M ASTM A106 GR.B
  • 12 inch ASTM A106 grade b seamless steel pipe
Contact us for astm a106 gr b pipes Price in India.

SA 106 Gr B Welded Pipes Outside Diameter Tolerances

NPS [DN Designator] Over Under
  in. mm
1/8 to 1-1/2 [6 to 40], incl 1/64 (0.015) 0.4
Over 1-1/2 to 4 [40 to 100], incl 1/32 (0.031) 0.8
Over 4 to 8 [100 to 200], incl 1/16 (0.062) 1.6
Over 8 to 18 [200 to 450], incl 3/32 (0.093) 2.4
Over 18 to 26 [450 to 650], incl 1/8 (0.125) 3.2
Over 26 to 34 [650 to 859], incl 5/32 (0.156) 4.0
Over 34 to 48 [850 to 1200],incl 3/16 (0.187) 4.8

ASTM A106 Grade B Seamless Pipe Mechanical Tests Specified

  • Tensile Test:
    • NPS 8 and larger — either transverse or longitudinal acceptable.
    • Smaller than NPS 8 — weighed in lots. Larger sizes — by length.
  • Flattening Test: NPS 2 and larger.
  • Bending Test (Cold): NPS 2 and under.
Test Purpose Degree of Bend Diameter of Mandrel
For Normal ASTM A106 uses 90° 12 x nominal dia. of pipe
For Close Coiling 180° 8 x nominal dia. of pipe

ASTM A106 Grade B Pipe Wall Thickness Availability

ASTM A106 Grade B Pipe Types Outer Diameter (OD) Wall Thickness (WT) Length
ASTM A106 Grade B Seamless Pipe (Custom Sizes) 1/2″ NB – 60″ NB SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160 / Custom Custom
ASTM A106 Grade B Welded Pipe (Stock + Custom) 1/2″ NB – 24″ NB As per requirement Custom
ASTM A106 Grade B ERW Pipe (Custom Sizes) 1/2″ NB – 24″ NB As per requirement Custom
ASTM A106 Grade B SAW Pipe 16″ NB – 100″ NB As per requirement Custom

ASTM A106 Gr B Sch 40 Line Pipe Pressure Rating

NPS (in) Outside Diameter (in) Schedule 10 Schedule 20 Schedule 30 STD Schedule 40 Schedule 60 XS Schedule 80 Schedule 100 Schedule 120 Schedule 140 Schedule 160
1/4 0.540       7985 7985   10798 10798        
3/8 0.675       6606 6606   9147 9147        
1/2 0.840       6358 6358   8575 8575       10908
3/4 1.050       5273 5273   7187 7187       10220
1 1.315       4956 4956   6670 6670       9316
1 1/4 1.660       4133 4133   5638 5638       7380
1 1/2 1.900       3739 3739   5158 5158       7247
2 2.375       3177 3177   4498 4498       7097
2 1/2 2.875       3460 3460   4704 4704       6391
3 3.500       3024 3024   4200 4200       6132
3 1/2 4.000       2769 2769   3896 3896        
4 4.500       2581 2581   3670 3670   4769   5782
5 5.563       2273 2273   3303 3303   4404   5505
6 6.625       2071 2071   3195 3195   4157   5318
8 8.625   1420 1574 1829 1829 2307 2841 2841 3375 4085 4613 5147
10 10.750   1140 1399 1664 1664 2279 2279 2708 3277 3847 4558 5128
12 12.750   961 1268 1441 1560 2160 1922 2644 3244 3843 4324 5042
14 14.000 875 1092 1313 1313 1533 2079 1750 2625 3283 3829 4375 4921
16 16.000 766 956 1148 1148 1531 2009 1531 2585 3157 3733 4404 4882
18 18.000 681 849 1192 1021 1530 2042 1361 2553 3147 3743 4252 4848
20 20.000 613 919 1225 919 1455 1989 1225 2526 3138 3675 4288 4824
22 22.000 557 835 1114 835   1949 1114 2506 3063 3619 4176 4733
24 24.000 510 766 1147 766 1405 1978 1021 2489 3126 3700 4210 4786
30 30.000 510 817 1021 613     817          
32 32.000 478 766 957 574 1054              
34 34.000 450 721 901 540 992              
36 36.000 425 681 851 510 1021              
42 42.000   583 729 438 875              

A106 Grade B Seamless Pipe Schedule Chart & Sizes (Wall Thickness in mm)

NB (mm) Size (inch) OD (mm) 40S 5S 10S S10 S20 S40 S60 XS/80S S80 S100 S120 S140 S160 XXS
  1/8” 10.29     1.2     1.73   2.41            
  1/4” 13.72     1.7     2.24   3.02            
  3/8” 17.15     1.7     2.31   3.2            
15 1/2” 21.34 2.8 1.7 2.1     2.77   3.73 3.73       4.78 7.47
20 3/4” 26.67 2.9 1.7 2.1     2.87   3.91 3.91       5.56 7.82
25 1” 33.4 3.4 1.7 2.8     3.38   4.55 4.55       6.35 9.09
32 1 1/4” 42.16 3.6 1.7 2.8     3.56   4.85 4.85       6.35 9.7
40 1 1/2” 48.26 3.7 1.7 2.8     3.68   5.08 5.08       7.14 10.2
50 2” 60.33 3.9 1.7 2.8     3.91   5.54 5.54       9.74 11.1
65 2 1/2” 73.03 5.2 2.1 3.1     5.16   7.01 7.01       9.53 14
80 3” 88.9 5.5 2.1 3.1     5.49   7.62 7.62       11.1 15.2
90 3 1/2” 101.6 5.7 2.1 3.1     5.74   8.08 8.08          
100 4” 114.3 6 2.1 3.1     6.02   8.56 8.56   11.1   13.5 17.1
125 5” 141.3 6.6 2.8 3.4     6.55   9.53 9.53   12.7   15.9 19.1
150 6” 168.3 7.1 2.8 3.4     7.11   10.97 11   14.3   18.3 22
200 8” 219.1 8.2 2.8 3.8   6.4 8.18 10.3 12.7 12.7 15.1 19.3 20.6 23 22.2
250 10” 273.1 9.3 3.4 4.2   6.4 9.27 12.7 12.7 15.1 19.3 21.4 25.4 28.6 25.4
300 12” 323.9 9.5 4 4.6   6.4 10.3 14.3 12.7 17.5 21.4 25.4 28.6 33.3 25.4
350 14” 355.6 9.5 4 4.8 6.4 7.9 11.1 15.1 12.7 19.1 23.8 27.8 31.8 35.7  
400 16” 406.4 9.5 4.2 4.8 6.4 7.9 12.7 16.7 12.7 21.4 26.2 31 36.5 40.5  
450 18” 457.2 9.5 4.2 4.8 6.4 7.9 14.3 19.1 12.7 23.8 29.4 34.9 39.7 45.2  
500 20” 508 9.5 4.8 5.5 6.4 9.5 15.1 20.6 12.7 26.2 32.5 38.1 44.5 50  
550 22” 558.8 9.5 4.8 5.5 6.4 9.5   22.2 12.7 28.6 34.9 41.3 47.6 54  
600 24” 609.6 9.5 5.5 6.4 6.4 9.5 17.5 24.6 12.7 31 38.9 46 52.4 59.5  
650 26” 660.4 9.5     7.9 13     12.7            
700 28” 711.2 9.5     7.9 13     12.7            
750 30” 762 9.5 6.4 7.9 7.9 13     12.7            
800 32” 812.8 9.5     7.9 13 17.5   12.7            
850 34” 863.6 9.5     7.9 13 17.5   12.7            
900 36” 914.4 9.5     7.9 13 19.1   12.7            

Schedule 40 ASTM A106 Grade B Pipe Surface Finish

  • Surface Finishes Available from Lakshay Steel: Bare, Oiled, Mill Varnish, Galvanized (Galv), FBE (Fusion Bonded Epoxy), FBE Dual, 3LPE (Three Layer Polyethylene), 3LPP (Three Layer Polypropylene), Coal Tar Enamel, Concrete Coating and Tape Wrap.
  • End Finishes: Beveled, Square Cut, Threaded & Coupled.

Applications of ASTM A106 Gr B ERW Pipe

ASTM A106 Grade B Steel Pipe, supplied by Lakshay Steel, is utilized in the most critical engineering applications and also in certain applications in the automotive sector. Furthermore, among the value-added carbon steel products are boiler quality, auto grades, precision tubes, corrosion-resistant steel, API grade, steel for LPG cylinders, boiler quality, boiler quality, and medium/high carbon grades.

ASTM A106 Grade B & C Pipe, often sought as a106 gr b pipes, is mostly used in:

  • Refineries
  • Power Plants (Nuclear/Thermal)
  • Boilers
  • Ship Building
  • Heat Exchangers
  • Condensers
  • Paper & Pulp Industries
  • Marine Applications
  • Fossil Fuel Power Plants
  • Oil and Gas Transportation
  • Water and Mineral Slurry Transmission
  • General Engineering and Structural Purposes

Contact Lakshay Steel for Your ASTM A106 GR. B Pipe Needs!

For the best quality, competitive pricing, and reliable delivery of astm a106 gr b pipes, contact Lakshay Steel today.

Frequently Ask Questions for A106 Grade B Pipe

What is A106 grade B pipe?
ASTM A106 Grade B is a specification for seamless carbon steel pipe for high-temperature service. A106 pipes are preferred for their ability to be welded, flanged, and bent, allowing for a wide variety of industrial and versatile uses.
What is A106 GR B equivalent material?
ASTM A106 Gr B carbon steel pipe can be equivalent to many other steel standards, most commonly API 5L Gr B and DIN 17175 ST45.8. EN 10216-2 P265GH is also known as an equivalent for pressure rating uses. Each has similar chemical composition and mechanical properties combination which allows for comparable substitutions to be made when using these pipe materials.
What is the thickness of A106 Grade B pipe?
A106 Grade B Pipe is a mild steel pipe which makes it useful in many industries, as it can be produced in different schedules. Another reason that they are useful is many different thicknesses are available. The A106 Carbon Steel Pipe standard thicknesses are ranged from 3mm – 12mm. They are easily bent, flanged, and welded for respective operations.
Request A Quote

    Talk To Us – We’re Here To Help

    [hidden post-url default:shortcode[_post_url]]

    Fill the Captcha

    Our Products

    Our Latest Blogs
    What is ERW Pipe and How Are ERW Pipes Made?

    What is ERW Pipe and How Are ERW Pipes Made?

    by | May 16, 2025 |

    When you think about materials that build our world, steel pipes are right up there. They're essential for so many things, from carrying water to supporting buildings. Among the different kinds of steel pipes, ERW pipe – which stands for Electric Resistance Welded...

    What is an Alloy? A Complete Guide to Alloy Metal

    What is an Alloy? A Complete Guide to Alloy Metal

    by | May 9, 2025 |

    Ever think about alloys all around you. Strong car wheels for example. Or kitchen tools that don't rust. Yes, alloys are everywhere. But many people do not really know what is an alloy. In this blog, we will discuss everything about alloys. We will talk about what...

    Related Products

    Send Us Message

    Got a  question? We'd love to hear from you. Send us a message & we'll respond as soon as possible.

      [hidden post-url default:shortcode[_post_url]]

      Fill the Captcha