ASTM A519 Grade 1010 (UNS G10100) Carbon Steel Tubes
ASTM A519 1010 (UNS G10100) is a low-carbon mild steel grade designed for seamless mechanical tubing applications that require a combination of good strength, high ductility, excellent weldability, and clean surface finish. Manufactured using hot-finished or cold-drawn processes, A519 1010 tubes deliver exceptional dimensional accuracy and consistent mechanical performance suitable for precision components across industrial sectors.
This makes it ideal for bending, flaring, swaging, drawing, machining, and other fabrication processes. Its low carbon chemistry ensures exceptional weldability without compromising toughness, making the material suitable for structural assemblies and engineering components.
ASTM A519 1010 (UNS G10100) seamless tubes are extensively used in automotive manufacturing, hydraulic systems, crankshafts, bushings, conveyor rollers, axles, machinery parts, and fabricated structures. With excellent cold-working properties, uniform hardness distribution, and stable performance under continuous stress, Grade 1010 is a trusted material for critical mechanical applications requiring durability and precision.
Key Features
- Seamless construction ensures superior structural integrity
- Excellent ductility and cold-working properties
- Smooth internal and external surface finish
- Suitable for machining, forming, and precision engineering
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| UNS | G10100 |
| SAE/AISI | 1010 |
| EN/DIN | 1.1121 (Approx. Equivalent) |
| JIS | S10C (Comparable Grade) |
Chemical Composition
| Element | % |
|---|---|
| Carbon (C) | 0.08 – 0.13 |
| Manganese (Mn) | 0.30 – 0.60 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.050 |
| Silicon (Si) | ≤ 0.10 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 315–440 MPa |
| Yield Strength | 180–240 MPa |
| Elongation | 28–35% |
| Hardness | 70–85 HRB |
Types Available
- Seamless Mechanical Tubes
- Cold Drawn Precision Tubes
- Hot Finished Mechanical Tubes
- Hydraulic Cylinder Tubes
- Structural Mechanical Tubing
Available Sizes
Outside Diameter (OD) Range
- 12.7 mm (½”) to 323.8 mm (12¾”)
- Custom OD available on request for precision mechanical applications
Wall Thickness (WT) Range
- 1.5 mm to 50 mm
- Heavy wall & extra heavy wall thicknesses available
- Thin-wall precision tubes for hydraulic systems available
Standard Lengths
- Up to 6 meters
- Up to 12 meters
- Cut-to-length services provided as per customer requirements
Dimensional Tolerances
- OD Tolerance: ±0.5% (tighter tolerance available for cold-drawn tubes)
- WT Tolerance: ±10% or as per client requirement
- Length Tolerance: +5 / -0 mm (for custom cut lengths)
Applications
- Automotive Components & Assemblies
- Hydraulic Cylinders & Pneumatic Systems
- Machinery Parts & Shafts
- Axles, Rollers, Bushings
- Fabricated Structures
- Precision Mechanical Parts
- Cold-formed and deep-drawn components
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