ASTM A210 Grade A1 boiler tubes are designed to maintain mechanical integrity under elevated temperatures commonly encountered in boiler and heat exchanger service.
Typical mechanical properties include:
l Tensile Strength: ≥ 415 MPa
l Yield Strength: ≥ 255 MPa
l Elongation: ≥ 30%
These properties ensure that A210 A1 tubes can safely withstand internal pressure, thermal expansion, and long-term continuous operation, making them a dependable choice for steam and water circulation systems.
Manufacturing Process and Heat Treatment
All ASTM A210 Grade A1 tubes supplied by Womic Steel are produced using a seamless steel tube manufacturing process, including hot rolling or hot extrusion followed by cold drawing when tighter tolerances are required.
After forming, the tubes undergo mandatory heat treatment, typically including:
l Hot-finished tubes: Normalizing or isothermal annealing
l Cold-drawn tubes: Annealing or normalizing + tempering
This heat treatment process refines the grain structure, relieves internal stress, and ensures uniform mechanical performance throughout the tube length.
Dimensional Range and Tolerance Control
Womic Steel supplies ASTM A210 Grade A1 boiler tubes in a wide range of sizes to meet different boiler and heat exchanger designs.
Typical supply range includes outside diameters from 12.7 mm to 114.3 mm, wall thickness from 1.2 mm to 12.0 mm, and lengths up to 12 meters, including fixed-length cutting upon request.
All dimensions are strictly controlled according to ASTM A210 tolerances, ensuring excellent straightness, roundness, and wall thickness uniformity for smooth boiler assembly and welding.
Inspection, Testing, and Quality Assurance
Each ASTM A210 Grade A1 tube undergoes a comprehensive inspection and testing program before delivery. This includes:
l Chemical analysis verification
l Tensile and mechanical testing
l Flattening and flaring tests
l Hydrostatic or nondestructive pressure testing
l Dimensional inspection and visual examination
Mill Test Certificates are issued in accordance with EN 10204 3.1, ensuring full traceability from raw material to finished tubes.
Applications of ASTM A210 Grade A1 Boiler Tubes
ASTM A210 Grade A1 tubes supplied by Womic Steel are widely used in:
l Power plant boilers and superheaters
l Industrial steam boilers
l Heat exchangers and economizers
l Pressure piping systems
l Thermal equipment in refineries and chemical plants
Their stable performance and cost efficiency make them a preferred material for large-scale boiler projects and long-term maintenance replacement.
Packaging, Delivery, and Supply Advantages
Womic Steel applies export-grade packaging for all ASTM A210 Grade A1 tubes, including bundled packing with steel straps, plastic end caps, moisture protection, and wooden cases when required. This ensures safe transportation during long-distance sea and land shipments.
With stable raw material sourcing, flexible production scheduling, and no minimum order quantity, Womic Steel can support both single-tube replacement needs and large boiler project orders, offering reliable delivery times and consistent quality.
Why Choose Womic Steel for ASTM A210 Grade A1
By combining strict standard compliance, mature manufacturing technology, experienced quality control, and strong export logistics, Womic Steel provides ASTM A210 Grade A1 boiler tubes that meet the demanding requirements of global boiler and pressure equipment industries.
We pride ourselves on our customization services, fast production cycles, and global delivery network, ensuring your specific needs are met with precision and excellence.
Website: www.womicsteel.com
Email: sales@womicsteel.com
Tel/WhatsApp/WeChat: Victor: +86-15575100681 or Jack: +86-18390957568
Post time: Jan-29-2026