ASTM A513 TUBES : Manufacturer
Midland Alloys Inc. is a trusted Indian manufacturer and global supplier of ASTM A513 Tubes, offering precision-engineered tubing solutions tailored to the needs of various industries. ASTM A513 refers to electric-resistance-welded (ERW) mechanical tubing made from carbon steel and available in multiple shapes like round, square, and rectangular. This specification covers several grades such as 1010, 1020, and 1026 each with distinct mechanical and chemical characteristics. In order to ensure strength, and machinability, the chemical composition usually consists of carbon (up to 0.30%), manganese, sulfur and phosphorus. Strict ASTM requirements are fulfilled by mechanical properties such tensile strength (up to 550 MPa), elongation (15–25%) and area reduction. This tube is appropriate for precision applications, due to its tight dimensional tolerances, structural consistency, and reliable performance. Whether you’re sourcing ASTM A513 DOM Tubing, ASTM A513 square tube or ASTM A513 round tube, Midland Alloys Inc. ensures high-quality, specification designed products backed by robust testing.
Benefits of ASTM A513 Tubes
ASTM A513 Tubes provide a balanced combination of strength, dimensional tolerance and fabricating flexibility, thus are extremely valuable for both manufacturing and structural purposes. These tubes, being meant for mechanical applications, offer reliable performance under low to moderate stress conditions.
- According to normal circumstances, excellent resistance to wear and mild corrosion
- High machinability for procedures involving drilling, shaping, welding and cutting
- Better cost-performance ratio, than seamless substitutes
- Maintains up strength and functionality at low to moderate temperatures.
- Adaptable to various production methods and end finishes
- Close tolerances are appropriate for applications requiring exact dimensions
- Supports applications requiring modest to moderate loads.
ASME A513 Tubes Specification

1/2" (15 NB) to 48" (1200NB)

ASTM A513/ A513M

ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Threaded / Screwed / Forged / Plate

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Forging, Rolling, Casting

FNPT, NPT, BSPT, MNPT, BSPP
Contact us today to discuss how ASTM A513 Tubes can benefit your application. Whether you need guidance in selecting the right pipes or have specific requirements, our team of experts is here to help you find the optimal solution.
Technical Details & Delivery Condition
| Element | Carbon | Manganese | Phosphorus | Sulfur |
| Grade A | 0.06-0.18 | 0.27-0.63 | 0.035 | 0.04 |
| Grade B | 0.35 max | 0.80 max | 0.035 | 0.035 |
| Grade C | 0.27 max | 1.00-1.50 | 0.030 | 0.035 |
| Grade Designation | Chemical Composition Limits, % | |||
| Carbon | Manganese | Phosphorus, max | Sulfur,max | |
| 1010 | 0.05-0.15 | 0.30-0.60 | 0.035 | 0.035 |
| 1015 | 0.10-0.20 | 0.30-0.60 | 0.035 | 0.035 |
| 1020 | 0.15-0.25 | 0.30-0.60 | 0.035 | 0.035 |
| 1026 | 0.22-0.28 | 0.60-0.90 | 0.035 | 0.035 |
The difference between SA178 and ASTM A513 tubes
The primary distinction between SA178, and ASTM A513 tubes is found in their manufacturing procedures and range of applications. ASTM A513 is an ERW mechanical tubing specification typically used for structural and precision applications where tight tolerances, and surface finish are necessary. For better mechanical qualities and dimensional control it is frequently cold drawn. SA178. On the other hand, is a boiler tube specification designed to withstand conditions including high temperatures, and pressures. With an emphasis on pressure containment rather than dimensional correctness, as it covers carbon steel tubes used in boilers, condensers and heat exchangers. SA178 tubes are selected for temperature and pressure-related applications, whereas ASTM A513 DOM Tubing is favored for mechanical, furniture, and automotive assemblies.
Plate

Shear

Press

Inspection

Lathe

Drilling

Cleaning

Flange

Inspection

Analytic

Marking

Packing & Shipping
Applications of ASTM A513 Tubes
ASTM A513 Tubes are widely used across multiple industries due to their structural integrity, weldability, and dimensional precision. In the automotive sector, they are used for chassis components, steering columns, shock absorber housings, and exhaust systems. The mechanical and fabrication industries use ASTM A513 DOM tubing 1010 1020 1026 in jigs, fixtures, and high-precision machine parts. Construction projects leverage ASTM A513 square tube and rectangular profiles for frameworks, supports, and general fabrication. In furniture manufacturing, these tubes serve as durable frames and structural connectors. Agriculture and heavy equipment manufacturers use ASTM A513 round tube for hydraulic applications, linkages, and bracing elements. The tubes also find use in fitness equipment, recreational vehicles, and general engineering assemblies where consistency and strength are essential.
Why Choose ASTM A513 Tubes from Midland Alloys Inc.
Midland Alloys Inc., a prominent Indian producer and supplier of premium ASTM A513 tubes, provides customers in the Gulf, Europe, Africa and Southeast Asia with accuracy and consistency. We adhere to strict ASTM and ASME requirements as an ISO-certified company we offer customized solutions like as cut-to-length tubing, unique wall thicknesses, various end finishes and surface protection treatments. Every product is subjected to a thorough internal check for dimensions, mechanical characteristics, and chemical composition. It encompasses ASTM A513 DOM Tubing, square, roundand custom shapes. We also give Mill Test Certificates (MTC) and third-party inspection on a request. To abide by traceability and compliance, all tubes are duly marked as per ASTM/ASME standards.
FAQs
ASTM A513 Tubes come in outer diameters from 6 mm to 114 mm and from 0.7 mm to 6 mm for wall thickness, based on grade and application.
Tube size and tolerances are tightly controlled according to the ASTM A513 specification, with exact OD limits, wall thickness limits, length limits, and concentricity limits to provide uniform mechanical properties.
ASTM A513 encompasses several grades like 1010, 1020, and 1026, each differing in chemical makeup, mechanical properties, and elongation. The grades are chosen depending on formability, strength needed, and application.



