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AISI 4140 Tube

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AISI 4140 Tube

Alloy AISI 4140 are low alloy elements that are economical in comparison to stainless steel. The AISI 4140 Tube is produced with a chemical composition of carbon, manganese, potassium, sulfur, silicon, chromium, and molybdenum. These tubes are designed to suffice in medium to high corrosion-induced environments. This 4140 Chrome Moly Tubing exibits resistance to crevice corrosion and cracking due to acids. They can be easily machined and fabricated to form desired elements. The 4140 Alloy Steel Tube has high ductility and can be easily annealed or galvanized. These tubes can be readily produced either by the cold or hot-rolling process. They are available in lengths up to 13500 mm. An AISI 4140 pipe exhibits superior strength and mechanical properties. These pipes possess a minimum tensile strength of 655Mpa and a minimum yield strength of 415Mpa. We follow all the standard processes and tests followed by all AISI 4140 Tube Suppliers while producing the best products.

SAE 4140 Pipe offers excellent fatigue resistance along with good wear resistance in different stress-induced environments. These pipes can be pickled to give them enhanced protection against various elements. The SAE 4140 Alloy Steel pipe exhibits exceptional torsion strength and enhanced hardness. These pipes are available in sizes ranging between 1/2NB to 24NB. An SAE 4140 Seamless Pipe exhibits superior strength as they are produced with a single piece of sheet metal. These pipes are highly reliable, and function well in high-pressure and temperature systems. The ASTM A519 Grade 4140 Welded Pipe is made with the help of welds and seams. These pipes are a cost-effective alternative to a seamless pipe. They are available with a wall thickness between 3mm to 12mm. The UNS G41400 Alloy Steel Tube is highly versatile and can be availed in plain, beveled, and threaded ends.

The pipes of this grade are available in different shapes and sizes. The AISI 4140 round tube is highly versatile and widely preferred in connecting rods, pump shafts, torsion bars, etc. They are available in schedules between schedules SCH 5 to SCH 160 and SCH XXS. DIN 1.7218 Steel Round Pipe exhibits exceptional dimensional accuracy and tolerances. These pipes have a melting point of 1416 degrees C and a density of 7.85 g/cm3. Our institution is a 4140 pipe suppliers who offer exceptional prices on all our products. Get in touch with us for offers or any other information.

AISI 4140 Tube

AISI 4140 Tube Specifications and Thickness

Sizes 1/2" NB to 36" NB
Specification ASTM A519/ ASME SA519
Length Single and Double Random, Cut to Length
Tolerance Cold rolled tube: +/-0.05 millimetre
Cold drawn tube: +/-0.1 millimetre
Thickness 3 - 12 millimeter, Cut to length
Form Hydraulic, Square, Rectangular, Round Etc.
End Beveled, Threaded, Plain
Type Welded | CDW | ERW | DOM | Seamless | Fabricated | CEW | LSAW
Surface Finish 2B, No.1, No.4, No.8 Mirror Finish
Schedule Thickness Ranges SCH XS, SCH 40, SCH 80S, SCH 5, SCH 80, SCH XXS, SCH 160, SCH10, All Schedules
Delivery Condition Annealed & Pickled, Polished, Bright & Annealed, etc

Refer Werkstoff Nr. 1.7218 Boiler Tube Equivalents, Manufacturer of AISI 4140 Steel Pipe and 4140 Alloy Steel Tube in Mumbai.

Alloy Steel UNS G41400 Equivalent

GRADE ASTM A519 4140
UNS G41400
DIN 1.7225
Check 4140 Chrome Moly Steel Tubing Weight Chart, Alloy Steel 4140 Annealed Tube Sizes, Exporter of 4140 Seamless Tubing.

Weight Table of 4140 Alloy Steel Pipe

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

AISI 4140 Square Tube Schedules Chart

NB Size (inch) 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            

Chemical Structure of DIN 1.7218 Steel Boiler Tube

Range C Si Mn P S Cr Mo
Min 0.38 0.15 0.75 - - 0.8 0.15
Max 0.43 0.35 1 0.035 0.04 1.1 0.25

Alloy Steel Grade 4140 Pipe Sizes

O.D. * Thk. O.D. * Thk. O.D. * Thk.
57 * 4.9 38.1 * 3.2 76.2 * 4
57 * 6.3 38.1 * 4 76.2 * 5
57 * 7.9 38.1 * 6.3 76.2 * 6.3
60.3 * 3.2 42.4 * 3.2 82.5 * 4.5
60.3 * 3.6 42.4 * 4 88.9 * 3.2
60.3 * 5 44.5 * 3.2 88.9 * 3.6
63.5 * 3.2 44.5 * 6.3 88.9 * 4
63.5 * 3.6 48.3 * 3.2 101.6 * 3.6
63.5 * 4 48.3 * 3.6 101.6 * 4.5
63.5 * 6.3 50.8 * 4.5 101.6 * 6.3
63.5 * 7.9 51 * 3.2 114.3 * 3.6
70 * 3.2 51 * 3.6 114.3 * 5
70 * 3.6 51 * 6.3 139.7 * 4
70 * 6.3 57 * 3.2 139.7 * 5
76.2 * 3.6 57 * 3.6 139.7 * 6.3

Several Test on AISI 4140 Pipe

  •  Chemical analysis
  •  Flaring and Flattening test
  •  Radiography test
  •  Mechanical test
  •  Ultrasonic test
  •  Pitting resistance test
  •  Hydrostatic test
  •  Macro/micro test
  •  Hardness test

Price List of Alloy Steel 4140 Seamless Tubing

Product Price
4140 Alloy steel seamless tubing $1.75/ Piece
DIN 1.7225 SAE 4140 Pipe $1,425.00 - $1,480.00/ Ton
AISI 4140 Cold Rolled Seamless Industrial Alloy Steel Pipe $1.25 - $2.55/ Kilogram
AISI 4140 30Crmo seamless steel tube $0.48 - $2.95/ Kilogram

Find your sizes in our stock of AISI 4140 Rectangular Tubing in Mumbai, Many Seamless 4140 Tube suppliers, stockholders, exporters, retailers, distributors, stockists, dealers, importers, and wholesalers choose us for the best price of SAE 4140 Steel Seamless Tube in India, Contact for a Quick Quote!

Density of 4140 Steel Round Tube

Properties Metric Imperial
Density 7.85 g/cm3 0.284 lb/in³

SAE 4140 Rectangular Tube Melting Point

Properties Metric Imperial
Melting point 1416°C 2580°F

Heat Conditions for AISI 4140 Seamless Pipe

Condition Grade Medium
Quenched and tempered A519-4140 Polymer or oil
Annealed or normalized A519-4140 Air

4140 Heat Treated Tubing Thermal Properties

Properties Metric Imperial
Thermal conductivity (@ 100°C) 42.6 W/mK 296 BTU in/hr.ft².°F
Thermal expansion co-efficient (@ 0-100°C/32-212°F) 12.2 µm/m°C 6.78 µin/in°F

SAE 4140 Standard Specification Other Grades

GB/T 3077 JIS AISI/SAE DIN BS ISO
30CrMo SCM420 4140 25CrMo4 25CrMo4 -
30CrMoA SCM430 4140 34CrMo4 34CrMo4 -

AISI 4140 Mechanical Tubing Applications

  •  Food Processing Industry
  •  Power Generation Industry
  •  Offshore and Onshore Services
  •  Paper & Pulp Industry
  •  Oil & Gas Industry
  •  Sugar Industry
Get SAE Grade 4140 Square Tube at best price, Find out Grade 4140 Welded Pipe Mechanical Properties, 4140 Steel Tubing Suppliers in India.

ASTM A519 Grade 4140 Mechanical Properties

Tensile Strength 689 MPa min 100,000 psi min
Yield Strength 552 MPa min 655 MPa max
  80,000 psi min 95,000 psi max
Total Elongation Under Load 20.000 % -
Hardness 23 Max HRC  

Tensile Strength of 4140 Alloy Steel Tube

Grade Designation Condition Ultimate Strength Yield Strength Elongation in 2 in.or 50mm,% Rockwell,Hardness B Scale
ksi Mpa ksi Mpa
4140 HR 90 621 70 483 20 89
  SR 105 724 85 586 10 95
  A 75 517 55 379 30 81
  N 90 621 60 414 20 89

Surface Treatment on AISI 4140 Steel Pipe

  •  Passivation
  •  Shot Blasting
  •  Oil-dip
  •  Phosphating
  •  Epoxy & FBE Coating Painting
  •  Varnish

AISI 4140 Chromoly Tube Tolerances

Condition O.D. Wall
Quenched and tempered +/- 1%A VariesB
Annealed or normalized ASTM A519 ASTM A519

Advantages of 4140 Dom Tubing

  •  Great Hardenability
  •  Inexpensive Rates
  •  Excellent Strength
  •  High Resistance to thermal properties
  •  Good Tenacity

SAE 4140 Mechanical Tube Surfaces Conditions

  •  Peeled for external and internal surface, or external or internal surface
  •  Black surface with oxygen skin
  •  Grinded for external and internal surface, or external or internal surface

Pre-heat temperature for SAE 4140 Chrome-Molybdenum Pipe

Section (mm) 25 40 50 75 150 +
oC 370 400 425 455 510