ASTM B463

This specification covers UNS N08020, UNS N08026,* and UNS N08024 alloy plate, sheet, and strip. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

Chemical Properties

UNS Designation	Carbon, max	Manganese, max	Phosphorus, max	Sulfur, max	Silicon, max	Nickel	Chromium	Molybdenum	Copper	Columbium (Nb) + tantalum	Nitrogen	Iron
N08026	0.03	1.00	0.03	0.03	0.50	33.00-37.20	22.00-26.00	5.00-6.70	2.00-4.00	-	0.10-0.16	remainderA
N08020	0.07	2.00	0.045	0.035	1.00	32.00-38.00	19.00-21.00	2.00-3.00	3.00-4.00	8 * carbon-1.00	-	remainderA
N08024	0.03	1.00	0.035	0.035	0.50	35.00-40.00	22.50-25.00	3.50-5.00	0.50-1.50	0.15-0.35	-	remainder

Note A: By difference.

Mechanical Properties

Tensile Strength, min ksi [MPa]	Yield Strength,Amin ksi [MPa]	ElongationB in 2 in. (50.8 mm),min %
80 [551]	35 [241]	30.0

Note A: AYield strength shall be determined by the offset method at 0.2 % limiting permanent set in accordance with Test Methods E 8. An alternative method of determining yield strength may be based on a total extension under load of 0.5 %. Note B: Elongation for thickness, less than 0.015 in. (0.38 mm) shall be 20 % minimum, in 1 in. (25.4 mm).

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