ASTM A513 Alloy Mechanical Tube

ASTM A513 ERW Carbon and Alloy Steel Mechanical Tubing

ASTM A513 covers round, square, rectangular, and special shape electric-resistance-welded carbon and alloy steel mechanical tubing produced by hot- or cold-rolling. The types of tubing covered here are:

Type 1a, as-welded from hot-rolled steel (with mill scale);

Type 1b, as-welded from hot-rolled pickled and oiled steel (mill scale removed);

Type 2, as-welded from cold-rolled steel;

Type 3, sink-drawn hot-rolled steel;

Type 4, sink-drawn cold-rolled steel;

Type 5, drawn over a mandrel; and

Type 6, special smooth inside diameter.

Heat and product analyses shall be made to determine the percentages of chemical elements to which the steel specimens shall conform.

ERW Tubing from Hot-Rolled Steel:

OD: 1/2" - 15" (12.7 - 380mm)

WT: 0.065" - 0.650" (1.65 - 16.5mm)

ERW Tubing from Cold-Rolled Steel:

OD: 3/8" - 12" (9.5 - 300mm)

WT: 0.022" - 0.134" (0.56 - 3.40mm)

Our ASTM A513 Alloy Mechanical Tube is manufactured in strict accordance with ASTM standards. Each batch is tested for mechanical properties and dimensional accuracy. High-precision models like Type 5 DOM tubing maintain a wall thickness deviation of <=5%, eliminating defective products and making them suitable for demanding assembly scenarios.

We offer a full range of material grades, including 1008/1020/4130, and all types from Type 1 to 5, from standard round tubing to custom square and rectangular tubing, eliminating the need for multiple sourcing channels.

We stock standard specifications and ship within 3 days of order placement. Custom models can be delivered within 7-10 days. We also offer value-added processing such as cutting and galvanizing, shortening your production cycle.

Our professional team can recommend suitable materials and types based on your load and processing requirements. We provide material reports and quality traceability after sales, ensuring peace of mind.

ASTM A513 Alloy Mechanical Tube chemical composition:

Our Quality Control of ASTM A513 Alloy Mechanical Tube

We conduct mandatory mechanical property testing (tensile strength, yield strength, elongation), dimensional deviation testing (outer diameter, wall thickness, roundness), and surface defect inspection (free of cracks, scars, and dents) to ensure consistent performance across each batch of pipes.

Type 1A (Hot-rolled Welded Scale): This retains the hot-rolled scale layer on the surface, resulting in lower cost and is suitable for structural parts with less demanding surface appearance (such as agricultural machinery brackets);

Type 1B (Hot-rolled Pickled and Oiled): This is followed by pickling and anti-rust oiling after scale removal, resulting in a highly clean surface and facilitating subsequent welding or painting.

Type 2 (Cold-rolled Welded): This cold-rolling process improves dimensional accuracy and surface smoothness, making it suitable for parts requiring higher precision (such as automotive shock absorber bushings).

Type 5 (Mandrel Drawn / DOM): This process uses a mandrel-drawn (Draw Over Mandrel) process to achieve high precision and uniform wall thickness on both the inner and outer surfaces, making it the preferred choice for high-load structural parts (such as mechanical transmission shafts).

We offer a variety of surface finishes, including black, pickling, and oiling. Customized finishes are also available. Galvanizing and other coatings are also available to enhance corrosion resistance.

ASTM A513 Alloy Mechanical Tube is commonly used in automotive parts, industrial machinery, agricultural equipment, and other structural applications requiring high precision and strength, such as automotive frames, engine mounts, and mechanical drive shafts.

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