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ASTM A106 Grade B Pipe

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ASTM A106 Grade B Pipe

Wondering which pipes or tubes to be selected for your business. Which will work in high pressure and high temperature. ASTM A106 Grade B Pipe might be just the right option for you. SA106 Grade B Schedule 40 Pipes are available in black and galvanized grades. SA 106 Gr B Material can be molded into a seamless pipe or welded. A106 gr.b Welded Pipe that are less than 2 inches in size are usually cold drawn. Whereas, A106 Gr B Hot Dip Galvanized Pipe with size more than 2 inches are hot drawn. ASTM A106 Gr.B Seamless Pipe is widely used in high-temperature services due to the ease of flanging, bending, and welding.

A106 Gr B FBE Coated Pipe should be solution annealed as per the heat treatment. This helps in restoring the ferrite in A106 Grade B Line Pipe Material. Industries like power plants, chemical plants, refineries, use these A106b Seamless Pressure Pipe widely. The size range of the A106 Grade B Pipe varies between ½ inches to 36 inches. Whereas, the length of these A106 Grade B Seamless Pipe varies between 3m to 18m. A106 Pipe can be a plain end, threaded, or beveled. The process involved in welding includes end to end or longitudinal manner or spiral manner. Though ASTM A106 Gr B Sch 40 ERW Pipe is said to be used in high temperatures. The specification also allows these A106 galvanized pipes to be used at -20 degrees C.

Also as per the specification, ASTM A106 Gr.B Material can withstand a temperature of upto 800 degrees F. However, the resistance to stress of this A106 Steel Pipe drops drastically when the temperature in the environment goes beyond 400 degrees F. SA 106 Gr B Sch 40 Seamless Pipe manufactured by us are supplied across the globe. These A106 Carbon Steel Pipes are passed through various tests before being supplied to the customers. Our team of experts makes sure that A106 Gr B Epoxy coated pipes are made using high-quality raw material. This ensures that they maintain the desired properties. SA 106 Gr B Internally coated Pipe can also be customized as per the requirements of the customer. Our affordable price and timely delivery have made us one of the most reputed ASTM A106 Grade B Pipe suppliers in India.

ASTM A106 Grade B Pipe

Standard Specification of SA106 Grade B Schedule 40 Pipe

Standard ASTM A106/ ASME SA106
Specification Grade B
SA 106 Gr B Seamless Pipes OD 21.3 - 660mm ( Inch 1/2" – 26")
Tolerance Cold rolled pipe: +/-0.05 millimeter
Cold drawn pipe: +/-0.1 millimeter
Schedule Ranges SCH-5S, SCH XS, SCH 40, SCH 80S, SCH-10S, SCH 5, SCH 80, SCH-STD, SCH XXS, SCH 160, SCH-40S, SCH10, All Schedules
ASTM A106 Killed Carbon Steel Pipe Length 2000mm, Custom Length 12000mm, 6000mm, 3000mm, Single Random Length (SRL), 40FT, DRL, SRL, Double Random Length (DRL), 20FT
Approvals HAF 604, NORSOK M-650, PED 97/23/EC, Merkblatt W0, KNPC, EIL, PED, BP, ISO 17025 for Laboratories, L&T, ONGC, IBR, Shell, Saudi Aramco, AD2000, CS ASTM A106 Grade B Cement Lined Pipe
ANSI Standard B1.20
O.D. 21.3MM ~ 762MM
Wall Thickness Ranges 4.5mm to 60mm
Origin of CS A106 Grade B Nace Pipe material American, Japan, Ukraine, UK, Russian, Korean, Chinese, Africa, Latin-American, European, Indian, USA, Asian, Japanese, Gulf, ASTM A106 Ggrade B smys
Certificate NACE, SSC, HIC, EN-10204:3.1, Sour-Service, EN-10204:3.2, IBR, ASTM A106 Gr B sch 80 Pipe
Equivalent Standards SS, SAE, GOST, JIS, UNI, EN, AWWA, ISO, CSA, IS, AISI, NFA, API, BS, ASTM, KS, ANSI, DIN, GB, ASTM A106 Gr b Schedule 40 Hot Dip Galvanized Pipe
Test

Ultrasonic Test, Burst Test, Straightness, TM0284, Surface Roughness Test, Charpy V-Notch Test, , Mechanical, Fine Grain, Metallurgical & Stereo Microscopy, TM0177, Positive Material Identification(PMI), Impact, Chemical, HIC- Hydrogen-induced Cracking, Bend Test Bend test / Guided Bend, Stress , Hardness, Hardness Test, Eddy current, SSC- Sulfide Stress Corrosion Cracking, Charpy V Impact Test, Salt Spray Test to test Phosphating, IGC- Intergranular Corrosion Test, Ferrite, Creep, Flux Leakage examination or Magnetic Flaw detection, Ultrasonic, Macro, Hydro test, Non Destructive Testing NACE MR0175, Micro, IBR, Radiography, Tensile, H2 SERVICE, ASTM A106 Grade b killed carbon steel Lined Pipe
Additional Services and Facility Threading, Cutting, Polishing, Sawing, Beveling, Laser/ Water Jet Cutting, Tapping, ASTM A106 Gr. B Carbon Steel Pipes
Material Test Certificate (MTC) provided by P265GH Pipe suppliers

NDE, EIL, ISO 14001:2015, ISO 9001:2005, EN 10204 3.1, PED, Ultrasonic Testing (UT), Radiographic Testing (RT), IBR, EN 10216-2 P235gh Seamless Pipe
Supplier of Large Diameter Carbon Steel ASTM A106 Pipe in various shapes Elliptical, Square, Rhomboid, Semi-Rhomboid, Semi-oval, Triangle, Semi-Round, Round, Hollow, Rectangle Hollow, Oval, A106 Steel Epoxy Lined Pipe
Coated ASTM A106 Grade B Pipe suppliers in India FBE Coated Pipes, FBE Lining, Mild Steel Rubber lining (MSRL), Dual Layer FEB, Clad Material, Dual Layer ARO Coating, Varnish, Temporary Corrosion Protection, Anti-Corrosion Paint, Black Japan, Concrete weight coating (CWC), Fusion Bonded Epoxy Coating, UV Dual Layer Coating, 3LPP Coated (Three Layer Polyethylene Coating), Galvanizing, LPE Coating And Lining, Primer, Coal tar enamel (CTE), Black Paint, PE Coated, Internal and External Expoxy Coated, ASTM A106 Seamless Schedule 40 Pipe
Leading ASTM A106 Welded Pipe manufacturers/ make Sumitomo Corporation, TATA Steel, Jindal Saw Limited (JSL), Boly Pipe, JFE, United Seamless Tubulaar Pvt. Ltd (USTPL), Indian Seamless Metal (ISMT), TMK Interpipe, , Benteler, Arcelormittal, Maharshtra Seamless Limited (MSL), ASTM A106-B Pipe
A106 ASTM Material Cutting Techniques Tapping, Water-Jet, Laser, Sawing, Burrless Cuts, CS A106 Grade B Hot Dip Galvanized Pipe
Surface Treatment of ASTM A106 Class B Heavy Wall Pipe
  • Carbon Steel ASTM A106 Grade B Galvanized Pipe
  • Thick Wall Steel A106 Gr B Pipe with Transparent oil, anti-rust oil
  • ASTM A106 Standard material with PVC, Black and color coating
  • SA106 Gr B Bare pipe, Painted,
  • 3PE, FBE, Epoxy Coating SA106 Grade B Carbon Steel Square Pipe
  • or as per clients requirement
Surface Finish 2B, No.1, No.4, No.8 Mirror Finish
Different methods used by CS ASTM A106 Gr B Epoxy Lined Pipe manufacturers' Horizontal Submerged Arc Welded (HSAW), Hot Finish Seamless (HFS), Extrusion, 100% X Ray/ Gamma Ray Welded, Seamless, Cold Drawn Seamless (CDS), Fabricated, Submerged Arc Welded (SAW), Electric Resistance Welded (ERW), CDW, Welded, Electro Fusion Seam Welded (EFSW), Longitudinally Submerged Arc Welded (LSAW), ASTM A106 Grade B Pipe
ERW and HFW 1/2" NB – 24" NB
Delivery Condition Annealed & Pickled, Polished, Bright & Annealed, etc
ASTM A106 Carbon Steel Pipe End BOE-Beveled One End TOE -Treaded One End, PBE -Plain Both Ends, POE -Plain One End, BE -Beveled end, BLE -Bevel large end, BSE -Bevel small end, TBE -Treaded Both Ends, BBE -Bevel both ends
LSAW / DSAW 16' OD TO 54" OD (8 millimetre TO 50 millimetre THK)
Type Welded | ERW | Seamless | Fabricated
ASTM A106 Gr.B SAW 16" - 100" NB
Marking of SA106 Carbon Steel Natural Gas Pipe suppliers
  • Specification of ASME SA106 Grade B Double Wall Pipe
  • Material Grade
  • Nominal Pipe Sizes (NPS)
  • Wall Thickness or Schedule No.
  • Manufacturing Process (ASTM A106 Grade B Seamless/ EFW/ ERW/ Welded)
  • Heat Number
  • Dealer/ Stockholder/ Supplier or Manufacturer’s Name or Custom Logo - as required

ASTM A106 Seamless Pipe Marking Sample: ASME B36.10 Carbon Steel SA106 12" NB SCH 40S PIPE SEAMLESS HEAT NO. B26212

 

ASTM A106 Grade b Carbon steel pipe Working Pressure

NPS OD Sch
(inches) (inches) 10 20 STD 30 XS 40 60 80 100 XXS 120 140 160
3/8 0.675     6606   9147 6606   9147          
1/2 0.84     6358   8575 6358   8575   17150     10908
1 1.315     4956   6670 4956   6670   13340     9316
1 1/4 1.66     4133   5638 4133   5638   11276     7380
2 2.375     3177   4498 3177   4498   8995     7097
2 1/2 2.875     3460   4704 3460   4704   9408     6391
3 1/2 4     2769   3896 2769   3896          
4 4.5     2581   3670 2581   3670   7339 4769   5782
6 6.625     2071   3195 2071   3195   6390 4157   5318
8 8.625   1420 1829 1574 2841 1829 2307 2841 3375 4971 4085 4613 5147
12 12.75   961 1441 1268 1922 1560 2160 2644 3244 3843 3843 4324 5042
14 14 875 1092 1313 1313 1750 1533 2079 2625 3283   3829 4375 4921
18 18 681 849 1021 1192 1361 1530 2042 2553 3147   3743 4252 4848
20 20 613 919 919 1225 1225 1455 1989 2526 3138   3675 4288 4824
24 24 510 766 766 1147 1021 1405 1978 2489 3126   3700 4210 4786
30 30 510 817 613 1021 817                
34 34 450 721 540 901   992              
42 42   583 438 729   875              

View ASTM A106 Grade B Galvanized Pipe, ASTM A106 SCH 40 Pipe Dimensions in mm, Get ASTM A106 Grade b Carbon steel pipe upto minimum 18 m length.

ASTM A106b Pipe Dimensions

Standard Permissible Variations in O.D.
NPS” OVER UNDER
ASTM A106-15 1/8 to 1-1/2 1/64” (0.015”) 1/64” (0.015”)
ASTM A106-15 Over 1-1/2 to 4 1/32” (0.031”) 1/32” (0.031”)
ASTM A106-15 Over 4 to 8 1/16” (0.062”) 1/32” (0.031”)
ASTM A106-15 Over 8 to 18 3/32” (0.093”) 1/32” (0.031”)
ASTM A106-15 Over 18 to 26 1/8” (0.125”) 1/32” (0.031”)
ASTM A106-15 Over 26 to 34 5/32” (0.156”) 1/32” (0.031”)
ASTM A106-15 Over 34 to 48 3/16” (0.187”) 1/32” (0.031”)
ASTM A106 Gr b smls material stock in Schedule 80/ SCH 160, Check ASME SA-106 Grade b Square/ Hollow Section Pipes Chemical property, ASTM A106 Grade B seamless pipe wall thickness.

A106 Grade B Seamless Pipe Chemical Resistance Guide

Standard Grade Chemical Composition %
C Mn P S Si Cr Cu Ni Mo V
ASTM A106 B ≤0.30 0.29-1.06 ≤0.035 ≤0.035 >0.10 ≤0.40 ≤0.40 ≤0.40 ≤0.15 ≤0.08

Mechanical Strength of ASTM A106 Gr B Sch 40 ERW Pipe

Standard Grade Tensile Strength
(MPa)		 Yield Strength
(MPa)		 Trans.Elongation
(%)		 Impact Test
(J)
ASTM A106 B >415 ≥240 ≥16.5 -

 

Equivalent Grades of A106 Carbon Steel Pipe

  Former New
Execution Standard Material Standard Material
Seamless ASTM A106 GRADE B EN 10216-2 P265GH

ASTM A106 Galvanized Pipe Schedule Chart

NB Size O.D. 40S 5S 10S S10 S20 S40 S60 XS/80S S80 S100 S120 S140 S160 XXS
mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm
  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            

ASTM A106 Grade B Pipe Sizes

ASTM A106 Gr B Pipe Size :

Wall Thickness of Carbon steel A106 Grade b Pipe smys

Different Types of CS Pipe ASTM A106 Grade B O.D. Wall thk. Length
ASTM A106 Grade B SAW Pipe 16" NB - 100" NB As per requirement Customized
ASTM A106 Gr b welded pipe (in Stock + Custom Sizes) 1/2" NB - 24" NB As per requirement Customized
ASTM A106 Gr b ERW pipe (As per demand Sizes) 1/2" NB - 24" NB As per requirement Customized
ASTM A106 Gr b seamless pipe (As per demand Sizes) 1/2" NB - 60" NB SCH 5 | SCH 10 | SCH 40 | SCH 80 | SCH 160 Customized

Carbon Steel ASTM A106 Gr B Pipe Price Per Kg

Product Price
Carbon Steel Seamless Pipes ASTM A106 Grade B (Size: 580 Mm X 75 Mm) $0.75 - $57.72/ Kg
Seamless Pipes ASTM/ASME A/SA 106 Grade B,c=max.o,22%, Outside Rust protected, Tol. Od >114.3mm+/- 1%) $2.48 - $1117.61/ Kg
Carbon Steel Pipe 114.3 X 11.13 4 Sch120 Seamless Pipes ASTM/ASME A/SA106 Grade B/c $12.39 - $346.77/ Kg
ASTM A106 sch xs sch40 sch80 sch 160 seamless carbon steel pipes $530.00 - $635.00/ Ton
ASTM A106 Gr.B 6 INCH SCH40 Carbon Seamless Steel Pipes $698.00 - $725.00/ Ton
ASTM A106 gr.b thin wall SMLS cold drawn seamless steel pipes $368.00 - $545.00/ Ton
ASTM A106 Grade B 830mm Black Cold Drawn Carbon Seamless Steel Pipes $485.00 - $570.00/ Ton

Choose us for the best price of ASTM A106 Grade B Tube in India, Many ASTM A106 Grade B Pipe suppliers, dealers, stockists, wholesalers, retailers, importers, stockholders, distributors, and exporters find your sizes in our stock of ASTM A106 Grade B SCH 40 Pipe in Mumbai, Contact for a Quick Quote!

A106 Gr B Carbon Steel ERW Pipe Application

  •  Power Plants
  •  Heat Exchangers
  •  Pharmaceutical Equipment
  •  Nuclear Power
  •  Off-Shore Oil Drilling Companies
  •  Condensers

CS ASTM A106 Gr B Maximum Temperature

  •  ASME allows for use as low as -20F (-29°C). It can be used upwards of 800°F (427°C), though the SA106 allowable stresses drop significantly above 400°F (200°C).

ASTM A106 Pipe Weight Chart

Size NPS O.D. Wall Thickness I.D. Weight per Foot Standard to XXHY Schedule
Pipes #		 Section Modulus Gallon Capacity Per Linear Foot
1/2 0.84 0.109 0.622 0.85 STD 40 .0407 .0158
    0.147 0.546 1.09 XHY 80 .0478 .0122
    0.188 0.464 1.31   160 .0528 .0088
    0.294 0.252 1.72 XXHY   .0577 .0026
3/4 1.05 0.113 0.824 1.13 STD 40 .0705 .0277
    0.154 0.742 1.48 XHY 80 .0853 .0225
    0.219 0.612 1.95   160 .1006 .0153
    0.308 0.434 2.44 XXHY   .1103 .0077
1 1.315 0.133 1.049 1.68 STD 40 .1328 .0449
    0.179 0.957 2.17 XHY 80 .1606 .0374
    0.250 0.815 2.85   160 .1904 .0271
    0.358 0.599 3.66 XXHY   .2136 .0146
1 1/4 1.66 0.140 1.380 2.27 STD 40 .2346 .0777
    0.191 1.278 3.00 XHY 80 .2913 .0666
    0.250 1.160 3.77   160 .3421 .0549
    0.382 0.896 5.22     .4110 .0328
1 1/2 1.90 0.145 1.610 2.72 STD 40 .3262 .1058
    0.200 1.500 3.63 XHY 80 .4118 .0918
    0.281 1.338 4.86   160 .5079 .0730
    0.400 1.100 6.41     .5977 .0494
2 2.375 0.109 2.157 2.64   10 .4205 .1898
    0.154 2.067 3.66 STD 40 .5606 .1743
    0.218 1.939 5.03 XHY 80 .7309 .1534
    0.250 1.875 5.68     .8045 .1434
    0.281 1.813 6.29     .8666 .1344
    0.344 1.687 7.47   160 .9806 .1161
    0.436 1.503 9.04 XXHY   1.1043 .0922
2 1/2 2.875 0.120 2.635 3.53   10 .6870 .2833
    0.203 2.469 5.80 STD. 40 1.0640 .2487
    0.216 2.443 6.14     1.1169 .2435
    0.250 2.375 7.02     1.2468 .2301
    0.276 2.323 7.67 XHY 80 1.3386 .2202
    0.375 2.125 10.02   160 1.6371 .1842
    0.552 1.771 13.71 XXXHY   1.9971 .1280
3 3.50 0.120 3.260 4.34     1.0411 .4336
    0.156 3.188 5.58     1.3122 .4147
    0.172 3.156 6.12     1.4265 .4064
    0.188 3.124 6.66     1.5342 .3984
    0.216 3.068 7.58 STD. 40 1.7241 .3840
    0.250 3.000 8.69     1.9372 .3672
    0.281 2.938 9.67     2.1207 .3521
    0.300 2.900 10.26 XHY 80 2.2253 .3431
    0.438 2.624 14.34   160 2.8774 .2811
    0.600 2.300 18.6 XXHY   3.4243 .2158
3 1/2 4.0 0.120 3.760 4.98   10 1.3776 .5768
    0.226 3.548 9.12 STD. 140 2.3939 .5136
    0.250 3.500 10.02     2.6001 .4998
    0.281 3.438 11.17     2.8562 .4821
    0.318 3.364 12.52 XHY 80 3.1400 .4617
    0.636 2..728 22.87 XXHY   4.8795 .3085
4 4.5 0.120 4.260 5.62   10 1.7612 .7404
    0.156 4.188 7.24     2.2354 .7156
    0.188 4.124 8.67     2.6296 .6942
    0.203 4.094 9.32     2.8173 .6838
    0.219 4.062 10.02     3.0184 .6725
    0.237 4.026 10.80 STD. 40 3.2145 .6613
    0.250 4.000 11.36     3.3611 .6528
    0.281 3.938 12.67   60 3.7021 .6326
    0.312 3.876 13.97     4.0273 .6126
    0.337 3.826 15.00 XHY 80 4.2713 .5972
    0.438 3.624 19.02   120 5.1790 .5361
    0.531 3.438 22.53   160 5.8997 .4822
    0.674 3.152 27.57 XXHY   6.7927 .4054
5 5.563 0.188 5.187 10.80     4.1161 1.0979
    0.219 5.125 12.51     4.7279 1.0716
    0.258 5.047 14.63 STD. 40 5.4500 1.0391
    0.281 5.001 15.87     5.8644 1.0204
    0.312 4.939 17.51     6.4074 .99647
    0.344 4.875 19.19     6.9358 .9696
    0.375 4.813 20.80 XHY 80 7.4300 .9449
    0.500 4.563 27.06   120 9.2534 .8495
    0.625 4.313 32.99   160 10.7976 .7590
    0.750 4.063 38.59 XXHY   12.0954 .6734
6 6.625 0.109 6.407 7.59   5 3.5769 1.6748
    0.134 6.357 9.30   10 4.3475 1.6488
    0.156 6.313 10.79     5.0107 1.6260
    0.188 6.249 12.94     5.9351 1.5937
    0.203 6.219 13.94     6.3804 1.5780
    0.219 6.187 15.00     6.8261 1.5620
    0.250 6.125 17.04     7.6905 1.5306
    0.280 6.065 18.99 STD. 40 8.4958 1.5008
    0.312 6.001 21.06     9.3416 1.4688
    0.344 5.937 23.10     10.111 1.4391
    0.375 5.875 25.05     10.893 1.4082
    0.432 5.761 28.60 XHY 80 12.224 1.3541
    0.500 5.625 32.74     13.711 1.2909
    0.562 5.501 36.43   120 14.9806 1.2346
    0.625 5.375 40.09     16.1821 1.1787
    0.719 5.187 45.39   160 17.8243 1.0977
    0.864 4.897 53.21 XXHY   20.025 .9784
    1.000 4.625 60.13     21.7719 .8727
    1.125 4.375 66.14     23.1237 .7809

ASTM A106 Grade b ERW Pipe Mechanical Tested Specified

  •  Smaller than NPS 8 - weighed in lots. Larger sizes - by length
  •  Tensile Test - NPS 8 and larger - either transverse or longitudinal acceptable
  •  Bending Test(Cold) - NPS 2 and under
  •  Flattening Test - NPS 2 and larger
  Degree of Bend Diameter of Mandrel
For Normal ASTM A106 Gr.B uses 90 12 x nom. diam. of pipes
For Close Coiling 180 8 x nom. diam. of pipes

ASTM A106 Killed Carbon Steel Outside Diameter

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