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4130 CHROMOLY TUBING FOR SALE

Siddhigiri Tubes is a distinguished leader in the metal tubing industry, known for delivering uncompromising quality and precision. As a leading supplier, we specialize in providing top-grade 4130 Chromoly Tubing, catering to diverse industries worldwide.

Looking for high-quality 4130 Chromoly Tubing? Look no further! Siddhigiri Tubes offers a wide range of top-grade 4130 Chromoly Tubing for sale. This specialized alloy steel is celebrated for its exceptional strength, durability, and excellent weldability. Manufactured from premium raw materials, our tubing is engineered to meet the rigorous demands of various industries. Recognized for its outstanding resistance to wear, corrosion, and fatigue, our 4130 Chromoly Tubing is the material of choice for critical applications in aerospace, automotive, and other high-stress environments.

4130 CHROMOLY TUBING FOR SALE

Untitled design - 2025-04-01T121649.171
4130 CHROMOLY TUBING FOR SALE
  • Good Hardness & Wear Resistance
  • Superior Weldability
  • Excellent Toughness & Ductility
  • Weldability and Formability
  • High Strength-to-Weight Ratio
  • Compliance and Certification
  • Diverse Range of Sizes
 
 
AISI 4130 CHROMOLY TUBING SIZE IN STOCK
OD X THICK
1/4” OD x 0.035” ( 6.35 MM OD X 0.9 MM )
1/4” OD x 0.04” ( 6.35 MM OD X 1 MM )
1/4” OD x 0.05” ( 6.35 MM OD X 1.25 MM )
1/4” OD x 0.06” ( 6.35 MM OD X 1.5 MM )
1/4” OD x 0.08” ( 6.35 MM OD X 2 MM )
8 MM OD X 0.9 MM
8 MM OD X 1 MM
8 MM OD X 1.25 MM
8 MM OD X 1.5 MM
8 MM OD X 2 MM
3/8” OD x 0.035” ( 9.5 MM OD X 0.9 MM )
3/8” OD x 0.04” ( 9.5 MM OD X 1 MM )
3/8” OD x 0.05” ( 9.5 MM OD X 1.25 MM )
3/8” OD x 0.06” ( 9.5 MM OD X 1.5 MM )
3/8” OD x 0.08” ( 9.5 MM OD X 2 MM )
10 MM OD X 0.9 MM
10 MM OD X 1 MM
10 MM OD X 1.25 MM
10 MM OD X 1.5 MM
10 MM OD X 2 MM
1/2” OD x 0.035” ( 12.7 MM OD X 0.9 MM )
1/2” OD x 0.04” ( 12.7 MM OD X 1 MM )
1/2” OD x 0.05” ( 12.7 MM OD X 1.25 MM )
1/2” OD x 0.06” ( 12.7 MM OD X 1.5 MM )
1/2” OD x 0.08” ( 12.7 MM OD X 2 MM )
5/8” OD x 0.035” ( 15.88 MM OD X 0.9 MM )
5/8” OD x 0.04” ( 15.88 MM OD X 1 MM )
5/8” OD x 0.05” ( 15.88 MM OD X 1.25 MM )
5/8” OD x 0.06” ( 15.88 MM OD X 1.5 MM )
5/8” OD x 0.08” ( 15.88 MM OD X 2 MM )
16 MM OD X 0.9 MM
16 MM OD X 1 MM
16 MM OD X 1.25 MM
16 MM OD X 1.5 MM
16 MM OD X 2 MM
18 MM OD X 0.9 MM
18 MM OD X 1 MM
18 MM OD X 1.25 MM
18 MM OD X 1.5 MM
18 MM OD X 2 MM
3/4” OD x 0.035” ( 19.05 MM OD X 0.9 MM )
3/4” OD x 0.04” ( 19.05 MM OD X 1 MM )
3/4” OD x 0.05” ( 19.05 MM OD X 1.25 MM )
3/4” OD x 0.06” ( 19.05 MM OD X 1.5 MM )
3/4” OD x 0.08” ( 19.05 MM OD X 2 MM )
7/8” OD x 0.035” ( 22.2 MM OD X 0.9 MM )
7/8” OD x 0.04” ( 22.2 MM OD X 1 MM )
7/8” OD x 0.05” ( 22.2 MM OD X 1.25 MM )
7/8” OD x 0.06” ( 22.2 MM OD X 1.5 MM )
7/8” OD x 0.08” ( 22.2 MM OD X 2 MM )
1” OD x 0.035” ( 25.4 MM OD X 0.9 MM )
1” OD x 0.04” ( 25.4 MM OD X 1 MM )
1” OD x 0.05” ( 25.4 MM OD X 1.25 MM )
1” OD x 0.06” ( 25.4 MM OD X 1.5 MM )
1” OD x 0.08” ( 25.4 MM OD X 2 MM )
1” OD x 0.095” ( 25.4 MM OD X 2.5 MM )
1” OD x 0.12” ( 25.4 MM OD X 3 MM )
1.1” OD x 0.035” ( 28.2 MM OD X 0.9 MM )
1.1” OD x 0.04” ( 28.2 MM OD X 1 MM )
1.1” OD x 0.05” ( 28.2 MM OD X 1.25 MM )
1.1” OD x 0.06” ( 28.2 MM OD X 1.5 MM )
1.1” OD x 0.08” ( 28.2 MM OD X 2 MM )
1.1” OD x 0.095” ( 28.2 MM OD X 2.5 MM )
1.1” OD x 0.12” ( 28.2 MM OD X 3 MM )
1.15” OD x 0.035” ( 29.2 MM OD X 0.9 MM )
1.15” OD x 0.04” ( 29.2 MM OD X 1 MM )
1.15” OD x 0.05” ( 29.2 MM OD X 1.25 MM )
1.15” OD x 0.06” ( 29.2 MM OD X 1.5 MM )
1.15” OD x 0.08” ( 29.2 MM OD X 2 MM )
1.15” OD x 0.095” ( 29.2 MM OD X 2.5 MM )
1.15” OD x 0.12” ( 29.2 MM OD X 3 MM )
1.25” OD x 0.035” ( 31.75 MM OD X 0.9 MM )
1.25” OD x 0.04” ( 31.75 MM OD X 1 MM )
1.25” OD x 0.05” ( 31.75 MM OD X 1.25 MM )
1.25” OD x 0.06” ( 31.75 MM OD X 1.5 MM )
1.25” OD x 0.08” ( 31.75 MM OD X 2 MM )
1.25” OD x 0.095” ( 31.75 MM OD X 2.5 MM )
1.25” OD x 0.12” ( 31.75 MM OD X 3 MM )
1.5” OD x 0.035” ( 38.1 MM OD X 0.9 MM )
1.5” OD x 0.04” ( 38.1 MM OD X 1 MM )
1.5” OD x 0.05” ( 38.1 MM OD X 1.25 MM )
1.5” OD x 0.06” ( 38.1 MM OD X 1.5 MM )
1.5” OD x 0.08” ( 38.1 MM OD X 2 MM )
1.5” OD x 0.095” ( 38.1 MM OD X 2.5 MM )
1.5” OD x 0.12” ( 38.1 MM OD X 3 MM )
1.75” OD x 0.035” ( 44.5 MM OD X 0.9 MM )
1.75” OD x 0.04” ( 44.5 MM OD X 1 MM )
1.75” OD x 0.05” ( 44.5 MM OD X 1.25 MM )
1.75” OD x 0.06” ( 44.5 MM OD X 1.5 MM )
1.75” OD x 0.08” ( 44.5 MM OD X 2 MM )
1.75” OD x 0.095” ( 44.5 MM OD X 2.5 MM )
1.750” OD x 0.12” ( 44.5 MM OD X 3 MM )
2” OD x 0.035” ( 50.8 MM OD X 0.9 MM )
2” OD x 0.04” ( 50.8 MM OD X 1 MM )
2” OD x 0.05” ( 50.8 MM OD X 1.25 MM )
2” OD x 0.06” ( 50.8 MM OD X 1.5 MM )
2” OD x 0.08” ( 50.8 MM OD X 2 MM )
2” OD x 0.095” ( 50.8 MM OD X 2.5 MM )
2” OD x 0.12” ( 50.8 MM OD X 3 MM )

4130 Chromoly Tubes Pressure Ratings

OD inchesAve. Wall inchesMin Yield Strength (PSI)Min Tensile Strength (PSI)Theoretical Burst Pressure * (PSI)Working Pressure (PSI) 25% of BurstTheoretical Yield Point ** (PSI)Collapse Pressure *** (PSI)
0.2500.02030,00075,00014,2863,5715,7144,416
0.2500.02830,00075,00021,6495,4128,6605,967
0.2500.03530,00075,00029,1677,29211,6677,224
0.2500.04930,00075,00048,35512,08919,3429,455
0.2500.06530,00075,00081,25020,31332,50011,544
0.3750.02030,00075,0008,9552,2393,5823,029
0.3750.02830,00075,00013,1663,2925,2664,145
0.3750.03530,00075,00017,2134,3036,8855,077
0.3750.04930,00075,00026,5346,63410,6146,816
0.3750.06530,00075,00039,7969,94915,9188,597
0.5000.02030,00075,0006,5221,6302,6092,201
0.5000.02830,00075,0009,4592,3653,7843,172
0.5000.03530,00075,00012,2093,0524,8843,906
0.5000.04930,00075,00018,2844,5717,3135,201
0.5000.06530,00075,00026,3516,58810,5416,786
0.5000.08330,00075,00037,2759,31914,9108,307
0.6250.02030,00075,0005,1281,2822,0511,859
0.6250.02830,00075,0007,3811,8452,9532,568
0.6250.03530,00075,0009,4592,3653,7843,172
0.6250.04930,00075,00013,9473,4875,5794,335
0.6250.06530,00075,00019,6974,9247,8795,591
0.6250.08330,00075,00027,1246,78110,8506,910
0.6250.09530,00075,00032,7598,19013,1037,734
0.6250.10930,00075,00040,17210,04316,0698,639
0.7500.02830,00075,0006,0521,5132,4212,156
0.7500.03530,00075,0007,7211,9303,0882,669
0.7500.04930,00075,00011,2732,8184,5093,664
0.7500.06530,00075,00015,7263,9316,2904,749
0.7500.08330,00075,00021,3185,3308,5275,905
0.7500.09530,00075,00025,4466,36210,1796,637
0.7500.10930,00075,00030,7337,68312,2937,453
0.7500.12030,00075,00035,2948,82414,1188,064
0.8750.02030,00075,0003,5938981,4371,340
0.8750.02830,00075,0005,1281,2822,0511,859
0.8750.03530,00075,0006,5221,6302,6092,201
0.8750.04930,00075,0009,4592,3653,7843,172
0.8750.06530,00075,00013,0873,2725,2354,126
0.8750.08330,00075,00017,5604,3907,0245,152
0.8750.09530,00075,00020,8035,2018,3215,807
0.8750.10930,00075,00024,8866,2219,9546,543
0.8750.12030,00075,00028,3467,08711,3397,100
1.0000.02830,00075,0004,4491,1121,7801,633
1.0000.03530,00075,0005,6451,4112,2582,027
1.0000.04930,00075,0008,1492,0373,2592,796
1.0000.06530,00075,00011,2072,8024,4833,647
1.0000.08330,00075,00014,9283,7325,9714,567
1.0000.09530,00075,00017,5934,3987,0375,159
1.0000.10930,00075,00020,9085,2278,3635,827
1.0000.12030,00075,00023,6845,9219,4746,336
1.0000.13430,00075,00027,4596,86510,9846,963
1.2500.03530,00075,0004,4491,1121,7801,633
1.2500.04930,00075,0006,3801,5952,5522,260
1.2500.06530,00075,0008,7052,1763,4822,958
1.2500.08330,00075,00011,4852,8714,5943,719
1.2500.09530,00075,00013,4433,3615,3774,213
1.2500.10930,00075,00015,8433,9616,3374,776
1.2500.12030,00075,00017,8224,4557,1295,207
1.2500.13430,00075,00020,4685,1178,1875,742
1.5000.03530,00075,0003,6719181,4691,367
1.5000.04930,00075,0005,2431,3112,0971,896
1.5000.06530,00075,0007,1171,7792,8472,487
1.5000.08330,00075,0009,3332,3333,7333,136
1.5000.09530,00075,00010,8782,7194,3513,559
1.5000.10930,00075,00012,7543,1885,1014,043
1.5000.12030,00075,00014,2863,5715,7144,416
1.5000.13430,00075,00016,3154,0796,5264,881
1.5000.14830,00075,00018,4394,6107,3755,336
1.7500.03530,00075,0003,1257811,2501,176
1.7500.04930,00075,0003,8649661,5461,434
1.7500.06530,00075,0006,0191,5052,4072,146
1.7500.08330,00075,0007,8601,9653,1442,711
1.7500.09530,00075,0009,1352,2843,6543,080
1.7500.10930,00075,00010,6722,6684,2133,504
1.7500.12030,00075,00011,9212,9804,7683,832
1.7500.13430,00075,00013,5633,3915,4254,242
1.7500.14830,00075,00015,2683,8176,1074,645
1.7500.16530,00075,00017,4304,3576,9725,124
2.0000.03530,00075,0002,7206801,0881,032
2.0000.04930,00075,0003,8649661,5461,434
2.0000.06530,00075,0005,2141,3032,0861,887
2.0000.08330,00075,0006,7881,6972,7152,387
2.0000.09530,00075,0007,8731,9683,1492,715
2.0000.10930,00075,0009,1752,2943,6703,092
2.0000.12030,00075,00010,2272,5574,0913,384
2.0000.13430,00075,00011,6052,9014,6423,751
2.0000.14830,00075,00013,0283,2575,2114,111
2.0000.16530,00075,00014,8203,7055,9284,542

AISI 4130 Tubing NB Size Schedule Chart

NBSizeOD40S5S10SS10S20S40S60XS/80SS80S100S120S140S160XXS
mmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
 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     
151/2”21.342.81.72.1  2.77 3.733.73   4.787.47
203/4”26.672.91.72.1  2.87 3.913.91   5.567.82
251”33.43.41.72.8  3.38 4.554.55   6.359.09
321 1/4”42.163.61.72.8  3.56 4.854.85   6.359.7
401 1/2”48.263.71.72.8  3.68 5.085.08   7.1410.2
502”60.333.91.72.8  3.91 5.545.54   9.7411.1
652 1/2”73.035.22.13.1  5.16 7.017.01   9.5314
803”88.95.52.13.1  5.49 7.627.62   11.115.2
903 1/2”101.65.72.13.1  5.74 8.088.08     
1004”114.362.13.1  6.02 8.568.56 11.1 13.517.1
1255”141.36.62.83.4  6.55 9.539.53 12.7 15.919.1
1506”168.37.12.83.4  7.11 10.9711 14.3 18.322
2008”219.18.22.83.8 6.48.1810.312.712.715.119.320.62322.2
25010”273.19.33.44.2 6.49.2712.712.715.119.321.425.428.625.4
30012”323.99.544.6 6.410.314.312.717.521.425.428.633.325.4
35014”355.69.544.86.47.911.115.112.719.123.827.831.835.7 
40016”406.49.54.24.86.47.912.716.712.721.426.23136.540.5 
45018”457.29.54.24.86.47.914.319.112.723.829.434.939.745.2 
50020”5089.54.85.56.49.515.120.612.726.232.538.144.550 
55022”558.89.54.85.56.49.5 22.212.728.634.941.347.654 
60024”609.69.55.56.46.49.517.524.612.73138.94652.459.5 
65026”660.49.5  7.913  12.7      
70028”711.29.5  7.913  12.7      
75030”7629.56.47.97.913  12.7      
80032”812.89.5  7.91317.5 12.7      
85034”863.69.5  7.91317.5 12.7      
90036”914.49.5  7.91319.1 12.7      

4130 Chromoly Tubing Mechanical Properties

PropertiesMetricImperial
Tensile strength, ultimate560 MPa81200 psi
Tensile strength, yield460 MPa66700 psi
Modulus of elasticity190-210 GPa27557-30458 ksi
Bulk modulus (Typical for steel)140 GPa20300 ksi
Shear modulus (Typical for steel)80 GPa11600 ksi
Poissons ratio0.27-0.300.27-0.30
Elongation at break (in 50 mm)21.50%21.50%
Reduction of area59.659.60%
Hardness, Brinell217217
Hardness, Knoop (Converted from Brinell hardness)240240
Hardness, Rockwell B (Converted from Brinell hardness)9595
Hardness, Rockwell C (Converted from Brinell hardness, value below normal HRC range, for comparison purposes only.)1717
Hardness, Vickers (Converted from Brinell hardness)228228
Machinability (Annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.)7070

 

4130 Chromoly Tubing Diameter Tolerances

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

 

4130 Chromoly Tubing Chemical Compositions

ElementContent (%)
Iron, Fe97.03 – 98.22
Chromium, Cr0.80 – 1.10
Manganese, Mn0.40 – 0.60
Carbon, C0.280 – 0.330
Silicon, Si0.15 – 0.30
Molybdenum, Mo0.15 – 0.25
Sulfur, S0.040
Phosphorous, P0.035

 

4130 Chromoly Tubing Physical Properties

PropertiesMetricImperial
Density7.85 g/cm30.284 lb/in³
Melting point1432°C2610°F

 

4130 Chromoly Tubing Mechanical Properties

PropertiesMetricImperial
Tensile strength, ultimate560 MPa81200 psi
Tensile strength, yield460 MPa66700 psi
Modulus of elasticity190-210 GPa27557-30458 ksi
Bulk modulus (Typical for steel)140 GPa20300 ksi
Shear modulus (Typical for steel)80 GPa11600 ksi
Poissons ratio0.27-0.300.27-0.30
Elongation at break (in 50 mm)21.50%21.50%
Reduction of area59.659.60%
Hardness, Brinell217217
Hardness, Knoop (Converted from Brinell hardness)240240
Hardness, Rockwell B (Converted from Brinell hardness)9595
Hardness, Rockwell C (Converted from Brinell hardness, value below normal HRC range, for comparison purposes only.)1717
Hardness, Vickers (Converted from Brinell hardness)228228
Machinability (Annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.)7070

 

 4130 Tubing Dimensions Chart

O.D.(mm) x Thickness(mm)O.D(mm) x Thickness(mm)O.D(mm) x Thickness(mm)
38.1 x 3.257.0 x 4.976.2 x 4.0
38.1 x 4.057.0 x 6.376.2 x 5.0
38.1 x 6.357.0 x 7.976.2 x 6.3
42.4 x 3.260.3 x 3.282.5 x 4.5
42.4 x 4.060.3 x 3.688.9 x 3.2
44.5 x 3.260.3 x 5.088.9 x 3.6
44.5 x 6.363.5 x 3.288.9 x 4.0
48.3 x 3.263.5 x 3.6101.6 x 3.6
48.3 x 3.663.5 x 4.0101.6 x 4.5
50.8 x 4.563.5 x 6.3101.6 x 6.3
51.0 x 3.263.5 x 7.9114.3 x 3.6
51.0 x 3.670.0 x 3.2114.3 x 5.0
51.0 x 6.370.0 x 3.6139.7 x 4.0
57.0 x 3.270.0 x 6.3139.7 x 5.0
57.0 x 3.676.2 x 3.6139.7 x 6.3
 

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