ASTM A409/A409M-08a

1.1 This specification covers straight seam or spiral seam electric-fusion-welded, light-wall, austenitic chromium-nickel alloy steel pipe for corrosive or high-temperature service. The sizes covered are NPS 14 to 30 with extra light (Schedule 5S) and light (Schedule 10S) wall thicknesses. Table shows the wall thickness of Schedule 5S and 10S pipe. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification.

1.2 Several grades of alloy steel are covered as indicated in Table 1.

1.3 Optional supplementary requirements are provided. These call for additional tests to be made, and when desired shall be stated in the order, together with the number of such tests required.

1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the "M" designation of this specification is specified in the order.

Note 1 - The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as nominal diameter, size, and nominal size.

TABLE 1 Chemical Requirements

	UNS Designa- tionsA	Composition, %
		Car- bon, max	Man- ganese, max	Phos- phorus, max	Sulfur, max	Sili- con	Nickel	Chromium	Molyb- denum	Tita- nium	Colum- bium	Cerium	Other Elements
TP201	S20100	0.15	5.5-7.5	0.060	0.030	1.00	16.0-18.0	3.5-5.5	. . .	. . .	. . .	. . .	N 0.25
TP201LN	S20153	0.03	6.4-7.5	0.045	0.015	0.75	16.0-17.5	4.0-5.0	. . .	. . .	. . .	. . .	N 0.10-0.25, Cu 1.00
TP304	S30400	0.08	2.00	0.045	0.030	1.00 max	8.0-11.0	18.0-20.0	. . .	. . .	. . .	. . .	Document History ASTM A409/A409M-15 ASTM A409/A409M-14 ASTM A409/A409M-09 ASTM A409/A409M-08a ASTM A409/A409M-08 ASTM A409/A409M-01 ASTM E800-99 Standard Guide for Measurement of Gases Present or Generated During Fires.. $33.00 $65.00 Add to Cart ASTM D5664-99 Standard Test Method for Evaluating the Effects of Fire-Retardant Treatments and Elevated Temperatur.. $29.00 $58.00 Add to Cart ASTM C914-95(1999) Standard Test Method for Bulk Density and Volume of Solid Refractories by Wax Immersion.. $25.00 $50.00 Add to Cart ASTM C43-99 Standard Terminology of Structural Clay Products.. $25.00 $50.00 Add to Cart