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AISI 4130 Chromoly Pipe, ASTM A29 AISI 4130 Pipe

AISI 4130 Seamless Pipes, ASME SA29 EFW Pipes, AISI DIN NR. 1.7218 Hexagonal pipe, AISI 4130 Pipe Price, ASTM A519 Grade 4130 Steel Tube Suppliers, Alloy 4130 Pipe Exporters, UNS G41300 Welded Pipe Stockist, AISI WERKSTOFF NR. 1.7218 Pipe Manufacturer

AISI4130 is a low-alloy chromium-molybdenum steel where 41 in the name AISI4130 is a low-alloy chromium molybdenum steel. The meaning of the 41 in the name is Cr-Mo and the meaning of the 30 is approximately 0.30 percent of carbon. It makes it easier to form and to fabricate, hence 4130 chrome moly tube is often used in industrial constructions. 4130 chrome moly tubing is highly performing with tensile strength of approximately 560 Mpa and yield strength of 460 Mpa, with a good level of ductility. Having a melting point of about 1432 C and density of about 7.85 g/cm 3, 4130 chromoly pipes do not oxidize and suffer normal corrosion in normal service. ASTM A519 Grade 4130 pipe is supplied either plain or beveled or threaded end as required and can operate at metal temperatures up to approximately 500 o C when designed to code.

 It is an alloy steel AISI 4130 which welds readily with qualified procedures and may be heat treated or machined to provide the necessary strength and toughness. Electropolished 4130 chromoly pipe is also available to have a cleaner inside surface and a smoother flow. With its strength to weight and reliability, chrome moly tube finds its application in the field of aerospace and defense structures, performance automotive chassis and rollover parts, and in mechanical tubing applications that require toughness, weldability, and dimensional accuracy.

4130 Chromoly Tubing/AISI 4130 Pipe Suppliers

Kalpataru Piping Solutions supplies 4130 chromoly pipes with a focus on precision, smooth finish, corrosion resistance, and high strength. AISI 4130 pipe sizes follow ASTM A519 / ASME SA519 with diameters from 4 mm to 219 mm and wall thicknesses from 0.5 mm to 20 mm. You can order seamless, ERW, welded, or fabricated pipes cut to single random, double random, or custom lengths—up to 13,500 mm.

As a leading 4130 chromoly tubing supplier, we offer AISI 4130 EFW pipes and AISI Werkstoff Nr. 1.7218 pipes in round, square, and rectangular shapes. Our AISI 4130 tubes are produced from hot steel billets and through seamless extrusion, cold rolling, and cold drawing for tight dimensions, clean finish, and higher load capacity in corrosive media. We tailor pipes with annealing, normalizing, and quenching so your tubing meets the required hardness, toughness, and performance for the application.
AISI 4130 Alloy Steel Seamless Pipes, 4130 Chromium Molybdenum Pipe, 4130 Chrome Moly Tubes in Welded Form, Request a Quote Now!

AISI 4130 Seamless Pipe

AISI 4130 Seamless Pipe

AISI 4130 Welded Pipe

AISI 4130 Welded Pipe

AISI 4130 ERW Pipe

AISI 4130 ERW Pipe

At Kalpataru Piping Solutions, we are committed to providing reliable, high-quality alloy steel products at competitive prices. If you’re looking for AISI 4130 chromoly pipe products or need information about A29 AISI 4140 pipe prices, feel free to reach out to us.

AISI 4130 Chromoly Pipe Specifications

Specifications ASTM A29 ASME SA29
Dimensions ASTM, ASME and API
Size 4 to 219mm W. T.: 0.5 to 20mm
Specialized in Large Diameter Size
Length Within 13500mm
Type Seamless / ERW / Welded / Fabricated
Form Round, Hydraulic Etc
Length Single Random, Double Random & Cut Length.
End Plain End, Beveled End, Threaded

ASTM A519 4130 Chrome Moly Tube Chemical Composition

Element Content (%)
Iron, Fe 97.03 – 98.22
Chromium, Cr 0.80 – 1.10
Manganese, Mn 0.40 – 0.60
Carbon, C 0.280 – 0.330
Silicon, Si 0.15 – 0.30
Molybdenum, Mo 0.15 – 0.25
Sulfur, S 0.040
Phosphorous, P 0.035

4130 Chromoly Pipe Types

AISI 4130 Pipe

AISI 4130 Pipe

A519 Gr 4130 Pipes

A519 Gr 4130 Pipes

ASTM A519 Gr 4130 Seamless Pipes

ASTM A519 Gr 4130 Seamless Pipes

4130 Chromoly Pipes

4130 Material Pipes

4130 Tubing

4130 Tubing

Mechanical Properties Of AISI 4130 Steel Tube

Properties Metric Imperial
Tensile strength, ultimate 560 MPa 81200 psi
Tensile strength, yield 460 MPa 66700 psi
Modulus of elasticity 190-210 GPa 27557-30458 ksi
Bulk modulus (Typical for steel) 140 GPa 20300 ksi
Shear modulus (Typical for steel) 80 GPa 11600 ksi
Poissons ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 21.50% 21.50%
Reduction of area 59.6 59.60%
Hardness, Brinell 217 217
Hardness, Knoop (Converted from Brinell hardness) 240 240
Hardness, Rockwell B (Converted from Brinell hardness) 95 95
Hardness, Rockwell C (Converted from Brinell hardness, value below normal HRC range, for comparison purposes only.) 17 17
Hardness, Vickers (Converted from Brinell hardness) 228 228
Machinability (Annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.) 70 70

Equivalent Grades for AISI 4130 Pipe

STANDARD UNS WERKSTOFF NR. AFNOR EN JIS BS GOST
AISI 4130 G41300 1.7218 25CrMo4 JIS G4105 BS 970

Buy Cut-to-length AISI 4130 Pipe and Tube With Wall Thickness 0.5 To 20mm at Best Price in India

AISI 4130 Chromoly Pipe Size Chart

O.D.(mm) x Thickness(mm) O.D(mm) x Thickness(mm) O.D(mm) x Thickness(mm)
38.1 x 3.2 57.0 x 4.9 76.2 x 4.0
38.1 x 4.0 57.0 x 6.3 76.2 x 5.0
38.1 x 6.3 57.0 x 7.9 76.2 x 6.3
42.4 x 3.2 60.3 x 3.2 82.5 x 4.5
42.4 x 4.0 60.3 x 3.6 88.9 x 3.2
44.5 x 3.2 60.3 x 5.0 88.9 x 3.6
44.5 x 6.3 63.5 x 3.2 88.9 x 4.0
48.3 x 3.2 63.5 x 3.6 101.6 x 3.6
48.3 x 3.6 63.5 x 4.0 101.6 x 4.5
50.8 x 4.5 63.5 x 6.3 101.6 x 6.3
51.0 x 3.2 63.5 x 7.9 114.3 x 3.6
51.0 x 3.6 70.0 x 3.2 114.3 x 5.0
51.0 x 6.3 70.0 x 3.6 139.7 x 4.0
57.0 x 3.2 70.0 x 6.3 139.7 x 5.0
57.0 x 3.6 76.2 x 3.6 139.7 x 6.3

Alloy Steel AISI 4130 Pipe Weight

AISI 4130 Pipe Dimensions and weights section modulus and gallons capacity per linear foot

Size NPS Pipe O.D. Wall Thickness Pipe I.D. Weight per Foot Standard to XXHY Schedule
Pipe #
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
  &nbsnbsp; 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

Physical Properties Of 4130 Pipes

Properties Metric Imperial
Density 7.85 g/cm3 0.284 lb/in³
Melting point 1432°C 2610°F

AISI 4130 Pipe Dimensions

OD x WT (mm) OD x WT (mm) OD x WT (mm)
76.2 x 6.3 57 x 7.9 38.1 x 6.3
76.2 x 5 57 x 6.3 38.1 x 4
82.5 x 4.5 60.3 x 3.2 42.4 x 3.2
88.9 x 3.6 60.3 x 5 44.5 x 3.2
88.9 x 3.2 60.3 x 3.6 42.4 x 4
88.9 x 4 63.5 x 3.2 44.5 x 6.3
101.6 x 4.5 63.5 x 4 48.3 x 3.6
101.6 x 3.6 63.5 x 3.6 48.3 x 3.2
101.6 x 6.3 63.5 x 6.3 50.8 x 4.5
114.3 x 5 70 x 3.2 51 x 3.6
76.2 x 4 57 x 4.9 38.1 x 3.2
114.3 x 3.6 63.5 x 7.9 51 x 3.2
139.7 x 4 70 x 3.6 51 x 6.3
139.7 x 6.3 76.2 x 3.6 57 x 3.6
139.7 x 5 70 x 6.3 57 x 3.2

Alloy Steel AISI 4130 Chromoly Pipe Tolerances

AISI 4130 Pipe Diameter

NPS [DN] Designator Over Under
in. mm in. mm
1/8 to 1 1/2 [6 to 40], incl. 1/64 (0.015) 0.40 1/64 (0.015) 0.40
Over 1 1/2 to 4 [40 to 100], incl. 1/32 (0.031) 0.79 1/32 (0.031) 0.79
Over 4 to 8 [100 to 200], incl. 1/16 (0.062) 1.59 1/32 (0.031) 0.79
Over 8 to 12 [200 to 300], incl. 3/32 (0.093) 2.38 1/32 (0.031) 0.79
Over 12 [300] +/- 1% of the specified outside diameter

AISI 4130 Pipes Wall Thickness

NPS [DN] Designator Tolerance, % from Specified
Over Under
1/8 to 2 1/2 [6 to 65] incl., all t/D ratios 20.0% 12.5%
Above 2 1/2 [65], t/D < or = 5% 22.5% 12.5%
Above 2 1/2 [65], t/D > 5% 15.0% 12.5%
(t = Specified Wall Thickness; D = Specified Outside Diameter)
APPLICATIONS

Applications of SAE 4130 Tubes

  • Textile machinery
  • Oil and gas industry
  • Pulp and paper industry
  • Power plants
  • Energy industries
  • Furniture
  • Pharmaceutical processing industry
  • Modern architecture
  • Home appliances
  • Water waste projects
  • Synthetic fiber
  • Heat exchanger
  • Fluid piping
  • Dairy and food processing

AISI 4130 Pipes Stock Range

ASTM A335 Chrome Moly Pipes

ASTM A213 Chrome Moly Tubes

A519 grade 4140 pipes

A519 gr 4130 pipes

AISI 4130 Grade L80 pipes

A519 Grade 4130 Seamless Pipes

aisi 4130 welded Tubes

aisi 4130 erw pipes

AISI 4130 Pipes

ASTM A519 Grade 4130 Pipes

Chromoly 4130 Pipes

Aisi 4130 Pipes

AISI 4130 Decorative Pipes

Alloy Steel 4130 Seamless Pipes

Large Diameter AISI 4130 Seamless Pipes

Cr-Mo 4130 Schedule 80 Pipes

AISI 4130 Pipes Exporter

AISI 4130 EN 10217-7 Pipes

AISI 4130 Colour Coated Tubes

Alloy EN 10217-7 Pipes

ASTM A519 EN 10216-5 Seamless Pipes

AISI 4130 Seamless Pipes

Austenitic Alloy Steel 4130 Pipes

Cr-Mo 4130 Hexagonal Pipes

ASTM A519 Alloy Steel 4130 Custom Pipes

AISI 4130 Pipes

AISI 4130 Oval Tubes

AISI 4130 Hydraulic Pipes

Alloy Steel 4130 Round Tubes

Chromium Molybdenum 4130 Industrial Pipes

ASTM SA519 AISI 4130 Round Tubes

Alloy Steel 4130 Pipes

Frequently Asked Questions About 4130 Chromoly Tubes/Pipes

What is AISI 4130 Alloy Steel?
AISI 4130 is a low-alloy steel with chromium and molybdenum added to enhance its strength, toughness, and hardenability. While not as resistant to corrosion as stainless steel, it offers an excellent balance of weldability, machinability, and mechanical performance.
Why should I choose AISI 4130 Chromoly tubes for certain applications?
Choose AISI 4130 chromoly for its high strength-to-weight, broad versatility, and strong value. It’s widely available, welds easily, and resists fatigue and moderate corrosion. Ideal for aerospace, automotive/motorsport, and construction where light, strong, fabrication-friendly tubing is needed.
What are the common uses of AISI 4130 Chromoly Pipes and Tubes?
AISI 4130 Chromoly pipes and tubes are commonly used in aerospace, automotive, and motorsport industries for components like roll cages, engine mounts, and high-pressure piping due to their strength and lightweight properties.
How does the heat treatment process affect AISI 4130 Chromoly Pipes and Tubes?
Heat treatment processes like annealing, normalizing, and quenching enhance the strength, hardness, and toughness of AISI 4130 pipes and tubes, making them more suitable for high-stress applications.

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