A334 Boiler Tubes SA334 Tubes

ASTM A334 standard covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. ASTM A334 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. All seamless and welded pipes shall be treated to control their microstructure. Tensile tests, impact tests, hydrostatic tests, and nondestructive electric tests shall be made in accordance to specified requirements.









A334 Boiler Tubes SA334 Tubes Features-


Low-temperature services serve at -45F°F (-45°C) Excellent strength and ductility.
Conductivity than alloy steels.
Higher strength with low coefficients of thermal.
Better weldability and greater toughness.



Product information of

A334 Boiler Tubes SA334 Tubes-


Seamless steel pipes certified with ISO9001 , API 5L & API 5CT 
Material: Carbon steel, Alloy steel and stainless steel
(ASTM A36, A53, A106, A519,A572, API 5L GR.B-X70 ,SS304, SS304L, SS316, SS316L).

NPS: 1/8"~48"
OD: 10.3mm ~ 1219.2mm
WT: 1.73mm ~ 55mm 
LENGTH: Fixed Length (5.8/6/12m), SRL, DRL

Ends:(Square End/Plain Ends (straight cut, saw cut, torch cut), Beveled End )
Surface: (Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosive Coating )
Packing: (Steel Strips bundled/In Bulk, Plastic Caps plugged, Waterproof Paper wrapped etc).





Bundle packing.
Bevelled end or plain end or warnished as per buyer’s required
Marking: As per customer’s requests.
Painting varnish coating on the pipe.
Plastic caps at ends.


Supply range


Seamless steel pipe
ERW steel pipe
Steel casing
Hot-rolled steel pipe
Spiral steel pipe
Hot-galvanized steel pipe



ASTM A334 specifications-


Size Range
4" to 26"
20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier.
A334 Grade 1, A334 Grade 3, A334 Grade 4, A334 Grade 6, A334 Grade 7, A334 Grade 8, A334 Grade 9, A334 Grade 10, A334 Grade 11 Seamless Pipes .
Oil Refineries, Petrochemicals, Power Generation (Nuclear/Thermal), Steel, Sugar, Boiler Equipments, Pressure Vessels and General Engineering Purposes.
End Connections for Line Pipes
Plain, Bevel, Screwed, Threaded
ERW / Welded / Fabricated / CDW
Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes.
Single Random, Double Random & Required Length, Custom Size – 12 Meter lengths.
Plain End, Beveled End, Treaded
End Protection
Plastic Caps
Outside Coating
Black Painting, Anti-Corrosion Oil, Galvanised Finish, Finish as per customer Requirements.
Delivery Condition
Annealed, Normalized, Normalized and Tempered
Inspection, Test Reports Chemical Composition inspection, Mechanical Properties Test(Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Hardness, Impact Test), Surface and Dimension Test, No-destructive Test, Hydrostatic Test.





Why Choose us?



Quick response in quotation, delivery, after-service.

Focus on pipe & tube solution for project application.

Third party inspection is accepted.




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