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ASTM B446-03(2008)

Historical Reaffirmation

Standard Specification for Nickel-Chromium-Molybdenum-Niobium Alloy, Nickel-Chromium-Molybdenum-Silicon Alloy, and Nickel-Chromium-Molybdenum-Tungsten Alloy Rod and Bar

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1.1 This specification covers nickel-chromium-molybdenum-columbium (UNS N06625), nickel-chromium-molybdenum-silicon alloy (UNS N06219), and Nickel-Chromium-Molybdenum-Tungsten Alloy (UNS N06650)* in the form of hot-worked rod and bar and cold-worked rod in the conditions shown in Table 1.

1.1.1 UNS N06625 products are furnished in two grades of different heat-treated conditions:

1.1.1.1 Grade 1 (Annealed)Material is normally employed in service temperatures up to 1100°F (593°C).

1.1.1.2 Grade 2 (Solution Annealed)Material is normally employed in service temperatures above 1100°F (593°C) when resistance to creep and rupture is required.

Note 1—Hot-working or reannealing may change properties significantly, depending on working history and temperatures.

1.1.2 Alloys UNS N06219 and UNS N06650 are supplied in solution annealed condition only.

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 The following precautionary caveat pertains only to the test methods portion, Section 12, of this specification: 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 (MSDS) 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.

This specification covers nickel-chromium-molybdenum-columbium (UNS N06625), nickel-chromium-molybdenum-silicon alloy (UNS N06219), and nickel-chromium-molybdenum-tungsten alloy (UNS N06650) in the form of hot-worked rod and bar and cold-worked rod. The matreial shall conform to the required chemical composition for carbon, manganese, silicon, phosphorus, sulfur, chromium, columbium, tantalum, cobalt, molybdenum, iorn, aluminum, titanium, copper, nickel, tungsten, and nitrogen. The materials shall conform to the the heat treatment and room temperature tensile properties such as tensile strength, yield strength, and elongation. Dimensions of the alloys such as diameter, thickness, or width, length and straightness shall also be determined.


SDO ASTM: ASTM International
Document Number B446
Publication Date March 1, 2008
Language en - English
Page Count 5
Revision Level 03(2008)
Supercedes
Committee B02.07
Publish Date Document Id Type View
Nov. 1, 2024 B0446-24 Revision
Nov. 1, 2023 B0446-23 Revision
April 1, 2019 B0446-19 Revision
March 1, 2008 B0446-03R08E01 Revision
June 10, 2003 B0446-03 Revision
May 10, 2002 B0446-02 Revision
May 10, 2002 B0446-00E01 Revision
Oct. 1, 2014 B0446-03R14 Reaffirmation
March 1, 2008 B0446-03R08 Reaffirmation