Siddhigiri Tubes is a leading provider of premium quality 4130 chromoly tubes, catering to diverse industrial sectors with precision-engineered solutions. Established on the principles of reliability, innovation, and integrity, we have emerged as a trusted name in the field of metallurgy and tubing technologies. With a commitment to excellence, Siddhigiri Tubes continues to redefine industry standards and deliver unmatched products to our valued clients.
The 4130 CHROMOLY TUBING is a versatile and highly sought-after alloy steel, renowned for its exceptional mechanical properties. Manufactured from premium raw materials, our tubing is engineered to meet the rigorous demands of various industries. Recognized for its outstanding strength-to-weight ratio, superior weldability, and excellent formability, this tubing finds extensive application in aerospace, motorsports, and other high-stress environments.
4130 CHROMOLY TUBING KEY FEATURES:

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 TUBING MECHANICAL PROPERTIES
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 |
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
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 TUBING PHYSICAL PROPERTIES
Properties | Metric | Imperial |
---|---|---|
Density | 7.85 g/cm3 | 0.284 lb/in³ |
Melting point | 1432°C | 2610°F |
AISI 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 3.2 | 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 |
AISI 4130 TUBING NB SIZE SCHEDULE CHART
Available Stock Of 4130 Chromoly Tubing
UNS G41300 Tubes Supplier
AISI 4130 Chromoly Exhaust Tube Suppliers
BS 970 Chromium Molybdenum Condenser Tube
4130 Aerospace Tubing Supplier
ASTM A519 Grade 4130 Capillary Tubing
large diameter ASTM A519 Grade 4130 Tubes
AISI 4130 Chromoly Square Tube
6 Inch AISI 4130 Chromoly Tubes
Schedule 40 AISI 4130 Chromoly Polish Tube
Schedule 80 SS AISI 4130 Tube Per Foot
AISI 4130 Chromoly Coil Tube
AISI 4130 Chromoly Schedule 80 Perforated Tubes
Schedule 10 AISI 4130 Chromoly Tubing
SS AISI 4130 Mechanical Tube Supplier
6 Inch AISI 4130 Chromoly Rectangular Tube
AISI 4130 Chromoly U Shaped Tubes
AISI 4130 Chromoly Nuclear Tubes
6 Inch AISI 4130 Chromoly Tubes
ASTM A519 Grade 4130 Square Tubing
WNR. 1.7218 Electropolished Tubes
EN 25CrMo4 Instrumentation Tube
1/2″ NB in Thickness SS AISI 4130 Tubes
JIS G4105 High Pressure Tube
AISI 4130 Chromoly Instrumentation Tubes
Schedule 80 AISI 4130 Chromoly Tubes
AISI 4130 Chromoly Round Tube
ASTM A519 Grade 4130 Tubing
Schedule 10 SS AISI 4130 Heat Resistant Tubing
EN 25CrMo4 Bellows Tubes
ASTM A519 Grade 4130 Exhaust Tube Supplier
AISI 4130 Chromoly Sanitary Tube
SS DIN 1.7218 Round Tubing
custom Chromium Molybdenum Tubing
14″ NB in Thickness Schedule ASTM A519 Grade 4130 Tube
SS AISI 4130 Needle Tube
AISI 4130 Chromoly Oval Tubes Supplier
2 Inch ASTM A519 Grade 4130 Finned Tube
JIS G4105 Chromoly Thin Wall Tubing
EN 25CrMo4 Seamless Manufacturer in India
AISI 4130 Chromoly Pressure Tubing
AISI 4130 Chromoly Tube Schedule 80
AISI 4130 Chromoly Oval Tube Supplier
AISI 4130 Chromoly Tubes Supplier
ASTM A519 Grade 4130 Aircraft Tubing
SS AISI 4130 Tubing Supplier
4130 Chassis Tube Racing Cars
AISI 4130 Chromoly Hot Finished Seamless Tubing
AISI 4130 Chromoly Tube Supplier in Mumbai
AISI 4130 Chromoly Pressure Tubing
AISI 4130 Chromoly Boiler Tube
Schedule 40 AISI 4130 Chromoly Tubes Supplier
AISI 4130 Chromoly exhaust Tubes suppliers
Marine Grade AISI 4130 Chromoly Tube
6 Inch ASTM A519 Grade 4130 Exhaust Tubing
AISI 4130 Chromoly Electropolished Tube
Chromium Molybdenum Seamless Tubing
Stainless Steel U Tube
5″ NB in Thickness Schedule SS AISI 4130 Tube
ASTM A519 Grade 4130 Seamless Tubes supplier
Schedule 40 SS AISI 4130 Cold drawn Seamless Tubing
SS AISI 4130 Rectangular Tubes
AISI 4130 Chromoly Hollow Tube Exporter
ASTM A519 Grade 4130 Radiant Tube
AISI 4130 Chromoly Precision Tubing Suppliers
High Quality ASTM A519 Grade 4130 Seamless Tube
16″ NB in Thickness AISI 4130 Chromoly Tube
AISI 4130 Chromoly Aircraft Tubing
SS AISI 4130 Hollow Tube Supplier
Aircraft Spruce 4130 Tubing Supplier
Alloy 4130 Stainless Steel Tubes Boiler
Cold Rolled ASTM A519 Grade 4130 Tube Suppliers
4130 Chromium Molybdenum SCH 40 Welded Tube
UNS G41300 Ornamental Tube
Alloy 4130 Stainless Steel Capillary Tubes
DIN. 1.7218 Tubing
AISI 4130 Chromoly Tube Schedule 80 Supplier
AISI 4130 Chromoly Decorative Tube
EN 25CrMo4 Chromoly Capillary Tube
Schedule 10 ASTM A519 Grade 4130 Hollow Tubes
AISI 4130 Chromoly Secondary & Surplus Tube
ASTM A519 Grade 4130 Small Diameter Tubes
AISI 4130 Chromoly Capillary Tube Supplier
4″ NB in Thickness Schedule SS AISI 4130 Tube Supplier
UNS G41300 Seamless Tubes
Alloy 4130 SS SCH 80 Tube
AISI 4130 Chromoly Hollow Tube
AISI 4130 Chromoly Perforated Tube
WERKSTOFF NR. 1.7218 Condensers Tubes
ASTM A519 Grade 4130 Precision Tubing Suppliers
18″ NB in Thickness Schedule SS AISI 4130 Tube
AISI 4130 Chromoly Round Tubes suppliers
Alloy 4130 Stainless Steel Rectangular Tube
6″ NB in Thickness AISI 4130 Chromoly Tube Supplier
ASTM A519 Grade 4130 Capillary Tubes
AISI 4130 Chromoly Mechanical Tube
WERKSTOFF NR. 1.7218 Capillary Tubes
AISI 4130 Chromoly Elliptical Tube
SS AISI 4130 Round Tubes Supplier & Manufacturer
4130 Roll Cage Tubing Supplier
Chromium Molybdenum 4130 Hydraulic Tubes
NB | Size | OD | 40S | 5S | 10S | S10 | S20 | S40 | S60 | XS/80S | S80 | S100 | S120 | S140 | S160 | XXS |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 |