SAE 4130 & AISI 4130 Chromoly Steel Tubing

4130 Chromoly tubing is a type of low-alloy steel containing chromium and molybdenum. It is highly valued for its excellent strength-to-weight ratio and high-temperature resistance.

This 4130 tubing material is widely used in industries requiring lightweight strength, such as aerospace and motorsports. It's also popular for bicycle frames, roll cages, and firearm parts. Being easy to weld and form, the 4130 tube offers versatility.

In addition to strength, 4130 tubing provides good ductility and toughness, resisting cracking and deformation, and has excellent corrosion resistance, making it a durable choice for harsh environments.

4130 Alloy Tubing, AISI 4130 Alloy Steel Seamless Pipes and 4130 Chromoly Tubing supplier in India

Solitaire Overseas is a prominent manufacturer and 4130 tubing supplier of AISI 4130 tubing from Mumbai, India. As one of the leading 4130 chromoly tubing suppliers, we ensure that SAE gr 4130 tube is made with a high-quality fine-grain steel structure, significantly increasing durability and providing excellent thickness and strength in both the transverse and longitudinal directions. The hot-working process of AISI 4130 tubing may be performed at temperatures ranging from 816 to 1093 degrees C (1500 to 2000 degrees F). AISI 4130 tubing is cold-worked using standard methods and annealed at 843°C (1550 degrees F) followed by air cooling to 482° C (900 degrees F).

AISI 4130 Tubing has been manufactured to the exact tolerances of the industry. It is also double-certified to ensure it conforms to the most current offshore drilling standards. AISI 4130 pipes are used extensively in the Oil & Gas and Oil Exploration industries. Specific applications include the manufacture of Choke & Kill manifolds (including Control Panel), Mud Manifolds, and Cement Manifolds, as well as the production of Mud / Gas Separators and fabrication pipe line terminations and Manifold Equipment for areas where high stress and pressure are to be expected.

We also guarantee that our products are in line with the 4130 steel tubing specifications of the industry as well as the specific demands of our customers. Our AISI 4130 tubes are offered in various thicknesses, sizes, and dimensions and customized specifications according to the requirements of our customers at competitive prices.

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Table of Contents

4130 Chromoly Steel Tubing Specifications

The following table details the key 4130 steel tubing specifications.

Specification Category Detail
Standard Chrome Moly, SAE 4130, A519
4130 Tubes Specifications (Fittings) ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Dimensional Specification ANSI/ASME B36.19M, ANSI/ASME B36.10M
4130 Seamless Tube Size (Nominal Bore - NB) $1/2''$ NB - $16''$ NB
Outside Diameter (OD) $6.00 \text{ mm}$ OD up to $914.4 \text{ mm}$ OD. Sizes up to $24''$ NB available Ex-stock.
Manufacturing Shapes Hydraulic, Round, Rectangle, Square, Hex, Honed
Manufacturing Techniques Seamless / Fabricated / CDW (Cold Drawn Welded) / $100\%$ X Ray Welded
AISI 4130 Tube Schedule Thickness Range SCH 5, SCH 10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Types Plain End, Bevelled End, Threaded One End, TBE (Threaded Both Ends)

4130 Steel Equivalent Grades

The 4130 steel tubing has several equivalent designations across different international standards, including:

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

4130 Steel Tube Chemical Composition

The defining characteristic of 4130 chromoly steel tubing is its blend of alloying elements. The typical chemical composition includes:

Grade Ni C Mo Mn Si Fe Cu S P Cr
AISI 4130 0.50 max 0.28-0.33 0.15-0.25 0.40-0.60 0.15-0.35 97.3-98.22 0.025 MAX 0.035 MAX 0.80-1.10

4130 Chromoly Tubing Mechanical Properties

The high strength-to-weight ratio of 4130 chromoly tubing is evident in its mechanical properties:

Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
0.28 2580 460 MPa 560 MPa 20 %

AISI 4130 Tubes: Outside Diameter (OD) & Wall Thickness (WT)

The dimensional ranges for AISI 4130 tubes depend on their specific form and intended use.

Product Description Outside Diamter, OD (in mm) Wall Thickness, WT (in mm)
AISI 4130 Round Tube 6mm – 630mm 0.5mm-30mm
AISI 4130 Square Tube 12.7mm* 12.7mm to 300mm* 300mm 0.5mm-30mm
AISI 4130 Rectangular Tube 10*20mm to 100*200mm 0.5mm-30mm
Seamless 4130 Alloy Steel Tubes 6mm to 630mm 0.5mm-30mm
Chrome Moly 4130 Tube 12.7mm to 76.2mm 0.5mm-2.0mm
AISI 4130 Tubing 12.7mm to 250mm 0.5mm-30mm
AISI 4130 Round Tube 12.7mm to 76.2mm 0.5mm-2.0mm
AISI 4130 Steel Tube 16mm to 85mm 0.5mm-3.0mm
AISI 4130 Alloy Steel Tube 13mm to 85mm 0.5mm-2.0mm
AISI 4130 Custom Tube 20mm to 200mm 0.5mm-2.0mm
4130 Thin-Wall AISI Tubes 22mm*0.7mm to 108mm*2.0mm 0.5mm-2.0mm
4130 Inner/Outside AISI Tubes 12.5mm to 203.2mm 1.0mm – 5mm
AISI 4130 Seamless Tubes 6mm to 430mm 0.8mm – 30mm
AISI 4130 Capillary Tubes 0.28mm to 10mm 0.08mm – 1.2mm

AISI 4130 Tubing Forms & Availability

Products Size
Chrome Moly 4130 Square Tube Chrome Moly 4130 High Pressure Tubing Sizes 3.35 mm OD To 101.6 mm OD
Chrome Moly 4130 Exhaust Tube Alloy Steel 4130 Flexible Tube
AISI 4130 Seamless Tube Chrome Moly 4130 Rectangular Tube
Chrome Moly 4130 Round Tube Chrome Moly 4130 Seamless Tubing
Alloy Steel 4130 Heat Exchanger Tubes AISI 4130 Custom Tubing
Chrome Moly 4130 Oval Tubes AISI 4130 Threaded Tube
Alloy Steel 4130 Seamless Tube AISI 4130 Custom Tubes
Chrome Moly 4130 Seamless Tubes Chrome Moly 4130 streamline tube
Chrome Moly 4130 Coiled Tubing 4130 Chrome Moly Tubing

Stock Availability of AISI 4130 Tubing

Products UNS DIN
AISI 4130 Seamless Tube UNS G41300 Seamless Tubes 1.7218 Seamless Tubing
AISI 4130 Round Tube UNS G41300 Round Tubes 1.7218 Round Tubing
AISI 4130 Custom Tube UNS G41300 Custom Tubes 1.7218 Custom Tubing

AISI 4130 Pipe Sizes

Commonly available AISI 4140 tubing sizes are listed by Nominal Bore (NB).

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 

4130 Chromoly Pipe Types

AISI 4130 Pipe
AISI 4130 Pipe
4130 Pipes
4130 Pipes
A519 Gr 4130 Pipes
A519 Gr 4130 Pipes
ASTM A519 Gr 4130 Seamless Pipes
ASTM A519 Gr 4130 Seamless Pipes
AISI 4130 Tube
AISI 4130 Tube
AISI 4130 Steel Tube
AISI 4130 Steel Tube
ASTM A519 Gr 4130 Tube
ASTM A519 Gr 4130 Tube
AISI 4130 Seamless Pipes
AISI 4130 Seamless Pipes
4130 Chromoly Pipes
4130 Chromoly Pipes
4130 Material Pipes
4130 Material Pipes
4130 Tubing
4130 Tubing

4130 Steel Tubing Applications

4130 steel tubing is a foundational material in high-stress, lightweight-critical environments:

  • Air Preheater Unit
  • Steam generating Boiler
  • Power Generation
  • Economiser
  • Heat Exchangers
  • Electric Power Plants
  • Fossil Fuel Plants
  • Water Supply Systems
  • Waste Heat Plants
  • Cogeneration Facilities

AISI 4130 Tubing Price List

The price of AISI 4130 tubing is influenced by several factors, including the tube's specific dimensions (OD, WT), manufacturing process (seamless or welded), required quantity, and current market conditions. The following list provides a representative guide to the pricing of 4130 tube based on common specifications and forms.

Description Per Unit (INR)
SEAMLESS PIPES AISI 4130(OD(MILIMETER 141.3 WT.21.65 MILIMETER) LENGTH 6-7.5 74
SEAMLESS PIPES AISI 4130 (54 PCS)(LENGHT 7.5 MTR)(OD 73MILIMETER/ WT 8 MILIMETER) 76
SEAMLESS PIPES AISI 4130 ( 27 PCS)(LENGHT 7.5 MTR)(OD 60.3 MILIMETER/ WT 11.1 MILIMETER) 76
SEAMLESS PIPES AISI 4130 (104 PCS)(LENGHT 7.5 MTR)(OD 88.9 MILIMETER/ WT 6.5MILIMETER) 76

Frequently Asked Questions About AISI 4130 Steel Tube

AISI 4130 is a chromoly steel, also known as chrome moly steel. It's a medium-carbon, low-alloy steel popular for its balance of strength, toughness, and machinability.

Strength offers good tensile strength and yield strength, making it suitable for various load-bearing applications. Exhibits good impact resistance, allowing it to absorb energy under stress without breaking. It can be machined relatively easily compared to some high-alloy steels. It can also be welded using various techniques, but preheating and post-weld heat treatment might be required to minimize distortion and cracking. Heat treatability which responds well to heat treatment processes like quenching and tempering, allowing for customization of its mechanical properties.

AISI 4130 is available in various product forms including Plate, Sheet, Bar and Tube hollow sections with circular or square shapes.

Depending on your specific application requirements, some potential alternatives include AISI 1045 which is a lower-cost option with good strength but less hardenability and toughness compared to 4130 and 4140 Chromoly similar to 4130 but with slightly higher.

4130 steel is utilized in demanding applications such as aircraft and automotive construction. Its excellent properties make it suitable for manufacturing structural frames and fasteners used in ships, bridges, and buildings.

No, 4130 steel does not rust easily. The presence of chromium in its alloy composition grants it good corrosion resistance, particularly when exposed to mildly corrosive conditions.