A519 4130 Seamless Alloy Steel Tube

  • slide
  • slide
  • slide
  • slide
  • Get QUICK QUOTE now (best price guaranteed)

MD Exports LLP’s cold drawn seamless 4130 tubing is a lighter weight, higher strength alternative to carbon steel. As the market leader in seamless 4130 tubing, TW Metals delivers a full range of rounds, squares, rectangles, and streamline products. Our tubing is manufactured to Mil-T-6736B, AMS-T-6736, ASTM A519, and AMS 6360 specifications. MD Exports LLP manufactures & exports A519 4130 Seamless Alloy Steel Tube, Fittings, Flanges & API connections in material grades AISI 4130. MD Exports LLP manufactures its products in different sizes, range, type and schedule-class. MD Exports LLP regularly supplies A519 4130 Seamless Alloy Steel Tube to core industries such as refineries, chemical & petrochemical, oil & Gas, Water treatment plant, power plants, off-shore, ship building, EPC & other Engineering company.

  • A519 4130 Seamless Alloy Steel Tube Specification

A519 4130 Seamless Alloy Steel Tube SpecificationProduct Name: A519 4130 Seamless Alloy Steel Tube

We accept all small/large quantity orders.

A519 4130 Seamless Alloy Steel TubeApplications: Automobile and Bearing Industry, Mechanical and Structral Purpose, Hydraulic and Petrochemical Purpose, etc.

  • Know more about AISI 4130 Alloy Steel (UNS G41300)


  • Aerospace
  • Motorsports – chassis


  • Excellent weldability
  • High yield strength
  • High ultimate tensile strength

4130 pipe:

  • A519-4130
  • L80 and P110 heat treated mechanicals
  • NPS 2” to 12”
  • Schedules 120 through XXH
  • Non-Scheduled walls through 1.5”

Seamless Pipe is tubing made to the pipe schedule. Alloy pipe in the power industry generally refers to A335 material, but in the oil and gas market, 4130 pipe is used.This product is made to the pipe schedule but uses A519-4130 as the controlling seamless specification. The material is then heat treated to L80, P110 or the customer’s specified properties. This material is easily welded and is generally used for above ground applications and utilizes the fittings, flanges and other piping components with the same 4130 chemistry. This product is a good alternative to replace X65 through X80 piping items where the usage or repair is too small for mill production.


Get A519 4130 Seamless Alloy Steel Tube price list, send an email to us at [email protected],
  • A519 4130 Seamless Alloy Steel Tube quality certificates

A519 4130 Seamless Alloy Steel Tube delivered with Mill Test Certificate EN 10204/3.1B

  • A519 4130 Seamless Alloy Steel Tube Packaging & Shipping

A519 4130 Seamless Alloy Steel Tube Packed

A519 4130 Seamless Alloy Steel Tube Packed

A519 4130 Seamless Alloy Steel Tube Packing: Plastic plugs in both ends, bundles of max. 3,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper and sackcloth with several steel strips

A519 4130 Seamless Alloy Steel Tube Delivery Condition: Annealed (A), Bright Annealing, Normalized (N), Stress Relief Or Finish Anneal (SR), Quenched and Tempered (Q+T), etc.

A519 4130 Seamless Alloy Steel Tube Marking: All tubes are eddy current tested and are marked with size, cast number and specification. Or as per customer’s requirement;

Packing Type: Round , Square, Rectangle, Hexagon. Streamline, etc;

A519 4130 Seamless Alloy Steel Tube Inner packing:

Caps on two ends of every pipe

A519 4130 Seamless Alloy Steel Tube Outer packing:

Hexagonal shape bundles wrapped with strong steel trip or according to customers’requests.

So, besides the fact that we can arrange freight transportation for you, we can before that:

  • specifically mark parts or packages;
  • provide for a special packing according to what is required by the shipping method or by you.

We mark the A519 4130 Seamless Alloy Steel Tube as needed with the most suitable marking technique.

When packaging and packing, our experienced warehouse staff systematically takes the greatest precautions for your A519 4130 Seamless Alloy Steel Tube to be optimally protected during transportation. We pack the A519 4130 Seamless Alloy Steel Tube according to the appropriate method: strapped pallet, wooden crate, overseas packing (ISPM15).

  • >AISI 4130 other Alloy Steel Products

  • >A519 4130 Seamless Alloy Steel Tube Useful info

AISI 4130 Alloy Steel (UNS G41300)

Alloy steels are designated by AISI four-digit numbers. They are more responsive to mechanical and heat treatments than carbon steels. They comprise different types of steels with compositions which exceed the limitations of B, C, Mn, Mo, Ni, Si, Cr, and Va in the carbon steels.

AISI 4130 alloy steel contains chromium and molybdenum as strengthening agents. It has low carbon content, and hence it can be welded easily. The datasheet given below provides more details about AISI 4130 alloy steel.

4130 is a Seamless  tubing, and is produced by using a extrusion or rotary piercing process. Chromoly is specified by the “SAE” Society of Automotive Engineers. the Alloy elements of 4130 are chromium and molybdenum,

this is why its often called chromoly  or cromo. Chromoly has an excellent strength to weight ratio, is easily welded and are considerably stronger and harder than standard 1020 mild seamed and DOM tube steels.

The numbers 4130 defines the chemical composition of the steel.

  • 41 means a low alloy steel containing 1 % chromium and 0.2 % molybdenum.
  • 30 means a carbon content of 0.30%.
  • In addition there will be around 0.2-0.5 % silicon, 0.5-1.0 % manganese, and under 0.1 % of each of a dozen or so other elements whose presence is unavoidable.
  • The remaining 97-98 % is iron.

4130 chromoly tubing  began its first use in the aircraft industry. Race chassis builders began using the tubing for its strength to weight ratio.

4130 tubing is used for anything from bicycle frames, AK-47 receivers, tubular chasis, suspension parts, aircraft parts and air frames etc… Ive used cromo for suspension components, cages / tube chassis and machined parts.

AISI 4130 is a Standard grade Alloy Steel. It is commonly called AISI 4130 Chromium-molybdenum steel. It is composed of (in weight percentage) 0.28-0.33% Carbon (C), 0.40-0.60% Manganese (Mn), 0.035%(max) Phosphorus (P), 0.04%(max) Sulfur (S), 0.15-0.30% Silicon (Si), 0.80-1.10% Chromium (Cr), 0.15-0.25% Molybdenum (Mo), and the base metal Iron (Fe). Other designations of AISI 4130 alloy steel include UNS G41300 and AISI 4130.

Steel is the common name for a large family of iron alloys. Steels can either be cast directly to shape, or into ingots which are reheated and hot worked into a wrought shape by forging, extrusion, rolling, or other processes. Wrought steels are the most common engineering material used, and come in a variety of forms with different finishes and properties. Alloy steels are steels that exceed the element limits for Carbon steels. However, steels containing more than 3.99% chromium are classified differently as stainless and tool steels. Alloy steels also includes steels that contain elements not found in carbon steels such as nickel, chromium (up to 3.99%), cobalt, etc.

The typical elastic modulus of alloy steels at room temperature (25°C) ranges from 190 to 210 GPa. The typical density of alloy steels is about 7.85 g/cm3. The typical tensile strength varies between 758 and 1882 MPa. The wide range of ultimate tensile strength is largely due to different heat treatment conditions.

AISI 4130 steel is a low alloy steel that is used in structural designs that may be found in applications such as aircraft engine mounts or welded tubing. It is well known for its ease of welding and ability to harden in commercial applications. It is commonly referred to as chromium-molybdenum steel.

Chemistry Data:


0.28 – 0.33


0.8 – 1.1


0.7 – 0.9


0.15 – 0.25


0.035 max


0.15 – 0.35


0.04 max













  • >AISI 4130 Stock & A519 4130 Seamless Alloy Steel Tube Price