ASTM A209 Seamless Carbon Steel Tube

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ASTM A209

Standard-Übersicht:
ASTM A209 is mainly concerned with seamless carbon-molybdenum alloy steel boiler and superheater tubes for high temperature service.

Hauptmaterial:
Carbon-molybdenum alloy steel, especially T1 and T1a grades.

Umfang der Anwendung:
Mainly used in boiler and superheater systems, especially in industrial environments such as power stations, chemical plants and refineries that require high temperature and high pressure operation.

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Specification of ASTM A209

Standard	ASTM A209
Anmeldung	Seamless carbon-molybdenum alloy-steel boiler and superheater tubes
Verfahren	Nahtlos
Stahlsorte	Gr.T1 , Gr.T1a , Gr.T1b
Toleranz	Wall Thickness: +/- 10%, Mass: 0/+16%

Dimension

Außendurchmesser：	1⁄2 bis 5 Zoll [12,7 bis 127 mm]
Wanddicke：	0,035 bis 0,500 in. [0,9 bis 12,7 mm]

Chemischer Bedarf

Chemical Composition Requirements
Element	Zusammensetzung, %
Element	Grade T1	Grade T1a	Grade T1b
Kohlenstoff	0.10-0.20	0.15–0.25	0.14 max
Mangan	0.30-0.80	0.30-0.80	0.30-0.80
Phosphor, max.	0.025	0.025	0.025
Schwefel, max.	0.025	0.025	0.025
Silizium	0.10-0.50	0.10-0.50	0.10-0.50
Molybdän	0.44-0.65	0.44-0.65	0.44-0.65

Mechanische Anforderung

Anforderungen an die Zugfestigkeit
Mechanische Eigenschaften	Grade T1	Grade T1b	Grade T1a
Zugfestigkeit, min, ksi [MPa]	55 [380]	53 [365]	60 [415]
Streckgrenze, min, ksi [MPa]	30 [205]	28 [195]	32 [220]
Dehnung in 2 Zoll oder 50 mm, min, %	30	30	30
For longitudinal strip tests a deduction shall be made for each 1⁄32-in. [0.8-mm] decrease in wall thickness below 5⁄16 in. [8 mm] from the basic minimum elongation of the following percentageWhen standard round 2-in. or 50-mm gage length or smaller proportion ally sized specimen with the gage length equal to 4D (four times the diameter) is used	1.50A 22	1.50A 22	1.50A 22

Warum UNIASEN wählen?

We offer a variety of shapes and sizes, using the latest technology to manufacture them and selecting the best steel for strength and longevity.
You can choose from different coatings, end types, and ways to connect the pipes.
We make sure the steel has just the right amount of carbon, molybdenum, and other elements. This makes our pipes strong and durable and helps them resist rust.
We test ASTM A209 steel pipes to ensure they are strong and tough enough to withstand high pressures and temperatures.

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