Manufacture of ASTM A691, ASTM A-691 Carbon Steel And Alloy Steel EFW Electric-Fusion-Welded Pipe for High-Pressure Service At High Temperatures

Manufacture of ASTM A691, ASTM A-691 Carbon Steel And Alloy Steel EFW Electric-Fusion-Welded Pipe for High-Pressure Service At High Temperatures

Manufacturer of ASTM-A691, ASTM-A-691 Carbon-Steel And Alloy-Steel E.F.W Electric-Fusion-Welded Pipes for High-Pressure Services At High Temperature

A691 Material Specification

GradeAlloy Steel ASTM A691 Cl22, A691 GRADE 1 CR, GRADE 1/2 CR, GRADE 1 1/4 CR, GRADE 2 1/4 CR,GRADE 3 CR, GRADE 5 CR, GRADE 9 CR, GRADE 91, CM 65, CM 70, CM 75
Size1/2” NB to 36” NB
Thickness3-12mm
SchedulesSCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Class DesignationClass 10, 11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 34, 40, 41, 42, 43, 50,
51, 52, 53, 60, 61, 62, 63, 70, 71, 72, 73
ASTM A691 GradesASTM A691 Gr 11, ASTM A691 Gr.91, ASTM A691 9cr, ASTM A691 5cr, ASTM A691 1 1/4cr Cl22, ASTM A691m,
ASTM A691 Gr.5cr Cl22, ASTM A691 Cm70, ASTM A691 Class 22, ASTM A691 Class 42, ASTM A691-91, ASTM A691 Grade 2.1/4cr, ASTM A691 11/4cr Cl22
OriginEuropean, Japanese, Korean, US, Russian, 
ToleranceCold drawn pipe: +/-0.1mmCold rolled pipe: +/-0.05mm
CraftCold rolled and Cold drawn
TypeSeamless / ERW / Welded / Fabricated / LSAW Pipes
available in Form ofRound, Square, Rectangular, Hydraulic Etc.
LengthStandard
Double &
In Cut length also.
EndPlain End, Beveled End, Treaded
Specialized inLarge Diameter ASTM A691 Pipe
Additional TestingNACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc.
ApplicationSeamless Ferritic Alloy-Steel Pipe for High-Temperature Service

ASTM A691 Pipe chemical composition

Chemical Composition of A691 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy STEEL EFW PIPEs

1CR1-1/4CR2-1/4 CR5 CR9 CR91
C0.05-0.170.05-0.170.05-0.150.150.150.08-0.12
Mn0.40-0.650.40-0.650.30-0.600.30-0.600.30-0.600.30-0.60
P0.0250.0250.0250.0250.0250.020
S0.0250.0250.0250.0250.0250.010
Si0.15-0.400.50-0.800.500.501.000.20-0.50
Cr0.80-1.151.00-1.502.00-2.504.00-6.008.00-10.008.00-9.50
Mo0.45-0.600.45-0.650.90-1.100.45-0.650.90-1.100.85-1.05
V––––0.040.18-0.25

*Grade 91 also includes restrictions on Nickel 0.40 max, Columbium 0.06-0.10, Nitrogen 0.030-0.070, Aluminium 0.02 max, titanium 0.01 max, Zirconium 0.01 max.

ASTM A691 Pipe Equivalent

ASTM A691 Pipe equivalent

Pipe GradeType of SteelASTM SpecificationHB, max
NumberGrade
CM-65carbon-molybdenum steelA204/A204MA201
CM-70carbon-molybdenum steelA204/A204MB201
CM-75carbon-molybdenum steelA204/A204MC201
CMSH-70carbon-manganese-silicon steel, normalizedA537/A537M1
CMS-75carbon-manganese-silicon steelA299/A299M——
CMSH-80carbon-manganese-silicon steel, quenched and temperedA537/A537M2
1/2 CR1/2 % chromium, 1/2 % molybdenum steelA387/A387M2201
1 CR1 % chromium, 1/2 % molybdenum steelA387/A387M12201
1 1/4 CR1 1/4 % chromium, 1/2 % molybdenum steelA387/A387M11201
2 1/4 CR2 1/4 % chromium, 1 % molybdenum steelA387/A387M22201
3 CR3 % chromium, 1 % molybdenum steelA387/A387M21201
5 CR5 % chromium, 1/2 % molybdenum steelA387/A387M5225
9 CR9 % chromium, 1 % molybdenum steelA387/A387M9241
919 % chromium, 1 % molybdenum, vanadium, columbiumA387/A387M91241
  • A Class I is Other Than Killed with a specified minimum tensile strength of 450 MPa or lower.
    • Class II is Other Than Killed with a specified minimum tensile strength of 450 to 520 MPa incl.
    • Class III is Killed with a specified minimum tensile strength of 450 MPa or lower.
    • Class IV is Killed with a specified minimum tensile strength of 450 to 520 MPa incl.
    • Class V is Killed with a specified minimum tensile strength of over 520 MPa to but not including 655 MPa.
    • Class VI is Killed with a specified minimum tensile strength of 655 MPa or over.
  • B Full size (10 by 10 mm) specimens.
  • C Testing temperature as specified in the purchase order, but no higher than 0°C

ASTM A691 Pipe mechanical properties

A691 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW LSAW Pipes Class

ClassHeat Treatment on Pipe Section see:Radiography,
see Section		Pressure
Test, see :
10nonenonenone
11none9none
12none98.3
13nonenone8.3
21stress relieved, see 6.3.1nonenone
21stress relieved, see 6.3.19none
ASTM A691 Class 22stress relieved, see 6.3.198.3
23stress relieved, see 6.3.1none8.3
31normalized, see 6.3.2nonenone
31normalized, see 6.3.29none
32normalized, see 6.3.298.3
33normalized, see 6.3.2none8.3
40normalized and tempered, see 6.3.3nonenone
43normalized and tempered, see 6.3.39none
43normalized and tempered, see 6.3.398.3
43normalized and tempered, see 6.3.3none8.3
50quenched and tempered, see 6.3.4nonenone
51quenched and tempered, see 6.3.49none
52quenched and tempered, see 6.3.498.3
53quenched and tempered, see 6.3.4none8.3
60normalized and precipitation heat none none treatednonenone
61normalized and precipitation heat none none treated9none
62normalized and precipitation heat none none treated98.3
63normalized and precipitation heat none none treatednone8.3
70normalized and precipitation heat none none treatednonenone
71normalized and precipitation heat none none treated9none
72normalized and precipitation heat none none treated98.3
73normalized and precipitation heat none none treatednone8.3

Heat Treatment of A691 Material

Pipe GradeASTM SpecificationPost-Weld Heat-Treat Temperature Range (Stress Relieving), °F (°C)Normalizing Temperature max unless otherwise noted,Quenching Temperature max unless otherwise noted,°F (°C)Tempering Temperature, min, °F (°C)
CM-65A 204/A 204M1100 to 1200 (590 to 650)1700 (925)……
CM-70A 204/A 204M1100 to 1200 (590 to 650)1700 (925)……
CM-75A 204/A 204M1100 to 1200 (590 to 650)1700 (925)……
CMSH-70A 537/A 537M1100 to 1200 (590 to 650)1700 (925)……
CMS-75A 299/A 299M1100 to 1200 (590 to 650)1700 (925)……
CMSH-80A 537/A 537M1100 to 1200 (590 to 650)A1700( 925)1100 to 1250 (590 to 675)
1/2CRA 387/A 387M1100 to 1300 (590 to 705)1850 (1010)1700( 925)150 to 1375 (620to745)
1CRA 387/A 387M1100 to 1350 (590 to 730)1850 (1010)1700 (925)150 to 1375 (620to745)
11⁄4CRA 387/A 387M1100 to 1375 (590 to 745)1850 (1010)1700 (925)150 to 1375 (620to745)
21⁄4CRA 387/A 387M1200 to 1400 (650 to 760)1850 (1010)1700 (925)250 to 1400(675 to760)
3CRA 387/A 387M1200 to 1400 (650 to 760)1850 (1010)1700 (925)250 to1400 (675 to760)
5CRA 387/A 387M1200 to 1400 (650 to 760)1850 (1010)1650 (900)1300 to1400 (705 to760)
9CRA 387/A 387M1325 to 1375 (715 to 745)B…1325 to1375 (715 to745)
ASTM A691 Gr.91A 387/A 387M1350 to 1420 (730 to 770)11900 to 2000 (1040 to 1095)1900 min (1040 min)1350 to 1440 (730 to 780)

Tensile Requirements of A691 Pipe

GradeTensile (MPa)Yield (MPa)Elong. (50mm)Reduc’n of Area*
1CR380 – 550230 min22% min–
1-1/4CR415 – 585240 min22% min–
2-1/4CR, 5CR, 9CR415 – 585205 min18% min40% min
91415 – 585205 min18% min40% min

Grade Tensile (MPa) Yield (MPa) Elong. (50 mm) Reduc’n of Area*

2485 – 620310 min22% min–
1-1/4CR515 – 690310 min22% min–
1CR450 – 585275 min22% min–
2-1/4CR, 5CR, 9CR515 – 690310 min18% min40% min
91585 – 760415 min18% min–

ASTM A691 Grade 5CR Grade-5 Alloy Steel EFW Pipe

We are Stockholder & Distributors of ASTM A691 Alloy Steel EFW Electric Fusion Welded Pipes in Grade 1CR Grade-12, 1.1/4CR Grade-11, 2.1/4CR Grade-22, 3CR Grade-21, 5CR Grade-5, 9CR Grade-9, Grade-91

ASTM A691 Grade 5, ASTM A691 Grade-5

ASTM A691 Carbon Steel & Alloy Steel Electric-Fusion Welded Pipes

ASTM A691 Grade 1.1/4CR, ASTM A691 Grade-1.1/4 CR

ASTM A691 Grade 11, ASTM A691 Grade-11

ASTM A691 Grade CM70, ASTM A691 Grade CM-70

ASTM A691 Grade CM75, ASTM A691 Grade CM-75

ASTM A691 Grade CMS75, ASTM A691 Grade CMS-75

ASTM A691 Grade 5CR, ASTM A691 Grade-5 CR

ASTM A691 Grade 1/2CR, ASTM A691 Grade-1/2 CR

ASTM A691 GRADE 1 1/4 CR Alloy Steel Pipes – contact Trio Steel for best price

ASTM A691 Grade 1CR, ASTM A691 Grade-1 CR

ASTM A691 Grade 12, ASTM A691 Grade-12

ASTM A691 Grade 2.1/4CR, ASTM A691 Grade-2.1/4 CR

ASTM A691 Grade 22, ASTM A691 Grade-22

ASTM A691 Grade CM65, ASTM A691 Grade CM-65

ASTM A691 Grade 3CR, ASTM A691 Grade-3 CR

ASTM A691 Grade 21, ASTM A691 Grade-21

ASTM A691 Grade 9CR, ASTM A691 Grade-9 CR

ASTM A691 Grade CMSH70, ASTM A691 Grade CMSH-70

ASTM A691 Grade 9, ASTM A691 Grade-9

ASTM A691 Grade 91, ASTM A691 Grade-91

ASTM A691 Pipe TypesOut diameterWall thicknessLength
A691 Alloy Steel EFW Pipe (Custom Sizes)1/2″ NB – 60″ NBSCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160Custom
ASTM A691 Welded Pipe (in Stock + Custom Sizes)1/2″ NB – 24″ NBAs per requirementCustom
ASTM A691 ERW Pipe (Custom Sizes)1/2″ NB – 24″ NBAs per requirementCustom
Alloy Gr.5 CR High Pressure Boiler Pipe16″ NB – 100″ NBAs per requirementCustom

Types of ASTM A691 Pipe

ASME SA / ASTM A691 Steel pipeAlloy Steel A691 material
ASTM A691 Pipe SuppliersAlloy Gr.9 CR Welded Pipe in suppliers
ASTM A691 GR 91 CR Alloy Steel Pipes DealerASTM A691 CMSH 70 Alloy Steel Pipes stockist
ASTM A691 Gr 2 1/4 CR Alloy Steel PipeASTM A691 CM 65 Alloy Seamless Pipes
Alloy Steel ASME SA / ASTM A691 Seamless PipeAlloy ASME SA691 Gr.1 1/4 CR EFW Pipe
IBR approved Alloy Steel A691 PipeAlloy Steel Grade 1 CR Fabricated Pipe
Grade 3 CR ASTM A691 Alloy Steel PipeAlloy Gr.5 CR High Pressure Pipe
ASTM A691 CM 75 Alloy Steel Pipes ExporterASTM A691 Gr 91 Alloy Steel Pipe
ASTM A691 CMSH 80 Alloy Steel PipeASTM A691 Gr.1 1/4 CR Alloy Pipe

ASTM A691 Pipe Weight

ASTM A691 Pipe Dimensions and weights section modulus and gallons capacity per linear foot

ASTM A691 Steel Pipe Size NPSASTM A691 Steel Pipe Pipe O.D.ASTM A691 Steel Pipe Wall ThicknessASTM A691 Steel Pipe Pipe I.D.ASTM A691 Steel Pipe Weight per FootASTM A691 Steel Pipe Standard to XXHYASTM A691 Steel Pipe Schedule
Pipe #		ASTM A691 Steel Pipe Section ModulusASTM A691 Steel Pipe Gallon Capacity Per Linear Foot
1/20.840.1090.6220.85STD40.0407.0158
0.1470.5461.09XHY80.0478.0122
0.1880.4641.31160.0528.0088
0.2940.2521.72XXHY.0577.0026
3/41.050.1130.8241.13STD40.0705.0277
0.1540.7421.48XHY80.0853.0225
0.2190.6121.95160.1006.0153
0.3080.4342.44XXHY.1103.0077
11.3150.1331.0491.68STD40.1328.0449
0.1790.9572.17XHY80.1606.0374
0.2500.8152.85160.1904.0271
0.3580.5993.66XXHY.2136.0146
1 1/41.660.1401.3802.27STD40.2346.0777
0.1911.2783.00XHY80.2913.0666
0.2501.1603.77160.3421.0549
0.3820.8965.22.4110.0328
1 1/21.900.1451.6102.72STD40.3262.1058
0.2001.5003.63XHY80.4118.0918
0.2811.3384.86160.5079.0730
0.4001.1006.41.5977.0494
22.3750.1092.1572.6410.4205.1898
0.1542.0673.66STD40.5606.1743
0.2181.9395.03XHY80.7309.1534
0.2501.8755.68.8045.1434
0.2811.8136.29.8666.1344
0.3441.6877.47160.9806.1161
0.4361.5039.04XXHY1.1043.0922
2 1/22.8750.1202.6353.5310.6870.2833
0.2032.4695.80STD.401.0640.2487
0.2162.4436.141.1169.2435
0.2502.3757.021.2468.2301
0.2762.3237.67XHY801.3386.2202
0.3752.12510.021601.6371.1842
0.5521.77113.71XXXHY1.9971.1280
33.500.1203.2604.341.0411.4336
0.1563.1885.581.3122.4147
0.1723.1566.121.4265.4064
0.1883.1246.661.5342.3984
0.2163.0687.58STD.401.7241.3840
0.2503.0008.691.9372.3672
0.2812.9389.672.1207.3521
0.3002.90010.26XHY802.2253.3431
0.4382.62414.341602.8774.2811
0.6002.30018.6XXHY3.4243.2158
3 1/24.00.1203.7604.98101.3776.5768
0.2263.5489.12STD.1402.3939.5136
0.2503.50010.022.6001.4998
0.2813.43811.172.8562.4821
0.3183.36412.52XHY803.1400.4617
0.6362..72822.87XXHY4.8795.3085
44.50.1204.2605.62101.7612.7404
0.1564.1887.242.2354.7156
0.1884.1248.672.6296.6942
0.2034.0949.322.8173.6838
0.2194.06210.023.0184.6725
0.2374.02610.80STD.403.2145.6613
0.2504.00011.363.3611.6528
0.2813.93812.67603.7021.6326
0.3123.87613.974.0273.6126
0.3373.82615.00XHY804.2713.5972
0.4383.62419.021205.1790.5361
0.5313.43822.531605.8997.4822
0.6743.15227.57XXHY6.7927.4054
55.5630.1885.18710.804.11611.0979
0.2195.12512.514.72791.0716
0.2585.04714.63STD.405.45001.0391
0.2815.00115.875.86441.0204
0.3124.93917.516.4074.99647
0.3444.87519.196.9358.9696
0.3754.81320.80XHY807.4300.9449
0.5004.56327.061209.2534.8495
0.6254.31332.9916010.7976.7590
0.7504.06338.59XXHY12.0954.6734
66.6250.1096.4077.5953.57691.6748
0.1346.3579.30104.34751.6488
0.1566.31310.795.01071.6260
0.1886.24912.945.93511.5937
0.2036.21913.946.38041.5780
0.2196.18715.006.82611.5620
0.2506.12517.047.69051.5306
0.2806.06518.99STD.408.49581.5008
0.3126.00121.069.34161.4688
0.3445.93723.1010.1111.4391
0.3755.87525.0510.8931.4082
0.4325.76128.60XHY8012.2241.3541
0.5005.62532.7413.7111.2909
0.5625.50136.4312014.98061.2346
0.6255.37540.0916.18211.1787
0.7195.18745.3916017.82431.0977
0.8644.89753.21XXHY20.025.9784
1.0004.62560.1321.7719.8727
1.1254.37566.1423.1237.7809

ASME SA691 Pipe Tensile Requirements

ASTM A691 Steel Pipe GradeASTM A691 Steel Pipe Tensile (MPa)ASTM A691 Steel Pipe Yield (MPa)ASTM A691 Steel Pipe Elong. (50mm)ASTM A691 Steel Pipe Reduc’n of Area*
1CR380 – 550230 min22% min–
1-1/4CR415 – 585240 min22% min–
2-1/4CR, 5CR, 9CR415 – 585205 min18% min40% min
91415 – 585205 min18% min40% min
2485 – 620310 min22% min–
1-1/4CR515 – 690310 min22% min–
1CR450 – 585275 min22% min–
2-1/4CR, 5CR, 9CR515 – 690310 min18% min40% min
91585 – 760415 min18% min–
ASTM A691 class 22 pipe, A691 material, ASME SA 691 Alloy Steel Pipe & ASTM A691 Pipe supplier are used in many industries such as power plants, shipbuilding, refineries, chemical, oil mills, oil & gas, petrochemical

Inspection & Approval Certificates : C/W Certificate (Calibration Works Certificate) EN 10204 3.1 / DIN 50049 3.1 / ISO 10474 3.1 Mill Test Certificate,
NACE HIC TM-0284 / NACE MR-0103 / NACE MR-0175 / ISO 15166, CE Marked, European Pressure Equipment Directive PED-2014/68/EU, AD-2000-WO,
ASME Boiler & Pressure Vessel Code Section-II Part A Edition 2019, API 6A (American Petroleum Institute), with 3.2 Certificate duly Certified &
Approved by IBR (Indian Boiler Regulations), LR Class (Lloyd’s Register), GL (Germanischer Lloyd), BV (Bureau Veritas), DNV (Det Norske Veritas),
ABS Class (American Bureau of Shipping), SGS, TUV, RINA, IR Class (Indian Register of Shipping), NORSOK Approved Standard M-630, M-650 Rev.3

If you have any requirement of above items, please feel free to contact us

Regards,

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MUKESH SHAH
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