1. Q: What material is ASTM A519 1010 steel pipe made of?
A:
Composition: 1010 is a low-carbon steel (carbon content approximately 0.10%) with a low manganese content (0.30-0.60%), exhibiting good ductility and weldability.
Standard: ASTM A519 specifies seamless cold-drawn or hot-rolled carbon and alloy steel pipe for mechanical applications, and 1010 belongs to its carbon steel series.
Properties: Moderate strength (tensile strength approximately 365 MPa), easy to form, and suitable for processes such as cold bending and welding.
2. Q: What are the main uses of ASTM A519 1010 steel pipe?
A:
Typical Applications:
Mechanical structural parts (such as shafts, connecting rods, and hydraulic cylinders);
Automotive parts (non-load-bearing components);
General engineering pipe (such as for conveying low-pressure fluids).
Limitations: Due to its low strength, it is not suitable for high-pressure or high-stress environments. 3. Q: What is the difference between ASTM A519 1010 steel pipe and other similar standards (such as ASTM A106)?
A:
A519 vs. A106:
A106: Seamless carbon steel pipe designed for high-temperature service (such as boiler tubing), with stricter sulfur and phosphorus content controls.
A519: Emphasizes machinability and is often used for cold-worked parts, without high-temperature performance requirements.
1010 vs. 1020: 1020 has a slightly higher carbon content (0.20%) and slightly better strength than 1010.
4. Q: What are the dimensions and tolerances for ASTM A519 1010 steel pipe?
A:
Dimension Range: OD is typically 6.35mm to 120mm (depending on the cold-drawing or hot-rolling process).
Tolerances:
OD tolerance: ±0.10mm (precision cold-drawn pipe).
Wall thickness tolerance: ±10% to 12.5% (depending on the specification). For specific values, please refer to the ASTM A519 standard table.
5. Q: What are the surface treatment and corrosion protection requirements for ASTM A519 1010 steel pipe?
A:
Default condition: Typically delivered uncoated (black skin) or bright annealed after cold drawing.
Corrosion protection options:
Galvanized (to be specified);
Oil-coated for rust prevention (for short-term storage);
Phosphate coating or painting are optional.
