ASTM B581-17

Standard Specification for Nickel-Chromium-Iron-Molybdenum-Copper Alloy Rod

ASTM International , 07/01/2017

Publisher: ASTM

File Format: PDF

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Description

Standard By:ASTM International , 07/01/2017

Published:07/01/2017

Pages:4

File Size:1 file , 78 KB

Language:English

Note:This product is unavailable in Russia, Ukraine, Belarus

1.1This specification2 covers rod of Ni-Cr-Fe-Mo-Cu alloys (UNS N06007, N06975, N06985, N06030, N08031, and N08034)3 as shown in Tables 1-3, for use in general corrosive service.

TABLE 1 Chemical Requirements Element Composition Limits, % Alloy N06007 Alloy N06975 Alloy N06985 Alloy N06030 Alloy N08031 Alloy N08034 Nickel remainder^A 47.0-52.0 remainder^A remainder^A 30.0-32.0 33.5-35.0 Chromium 21.0-23.5 23.0-26.0 21.0-23.5 28.0-31.5 26.0-28.0 26.0-27.0 Iron 18.0-21.0 remainder^A 18.0-21.0 13.0-17.0 remainder^A remainder^A Molybdenum 5.5-7.5 5.0-7.0 6.0-8.0 4.0-6.0 6.0-7.0 6.0-7.0 Copper 1.5-2.5 0.70-1.20 1.5-2.5 1.0-2.4 1.0-1.4 0.5-1.5 Manganese 1.0-2.0 1.0 max 1.0 max 1.5 max 2.0 max 1.0-4.0 Cobalt, max 2.5 ... 5.0 max 5.0 max ... ... Carbon, max 0.05 0.03 0.015 max 0.03 max 0.015 0.01 Tungsten 1.0 max ... 1.5 max 1.5-4.0 ... ... Silicon, max 1.0 1.0 1.0 max 0.8 max 0.3 0.1 Phosphorus, max 0.04 0.03 0.04 max 0.04 max 0.020 0.020 Sulfur, max 0.03 0.03 0.03 max 0.02 max 0.010 0.010 Columbium + tantalum 1.75-2.50 ... 0.50 max 0.30-1.50 ... ... Titanium ... 0.7-1.5 ... ... ... ... Nitrogen 0.15-0.25 ... ... ... ... 0.10-0.25 Aluminum 0.3

(A)See 13.1.1.

TABLE 2 Mechanical Property Requirements Alloy Specified Diameter, in. (mm) Tensile Strength min, psi (MPa) Yield Strength (0.2 % Offset), min, psi (MPa) Elongation in 2 in. or 50.8 mm or 4D ^A min N06007 ⁵/₁₆to ³/₄(7.94 to 19.05), incl 90 000 (621) 35 000 (241) 35 Over ³/₄to 3¹/₂(19.05 to 88.9), incl 85 000 (586) 30 000 (207) 30 N06975 ⁵/₁₆to 3¹/₂(7.94 to 88.9), incl 85 000 (586) 32 000 (221) 40 N06985 ⁵/₁₆to ³/₄(7.9 to 19.05), incl 90 000 (621) 35 000 (241) 45 Over ³/₄to 3¹/₂(19.05 to 88.9), incl 85 000 (586) 30 000 (207) 35 N06030 ... 85 000 (586) 35 000 (241) 30 N08031 All sizes 94 000 (648) 40 000 (276) 40 N08034 All sizes 94 000 (650) 40 000 (280) 40

(A)D refers to the diameter of the tension specimen.

TABLE 3 Permissible Variations in Diameter and Out-of-Roundness of Rods Specified Diameter, in. (mm) Permissible Variations, in. (mm) Diameter Out-of-Roundness, max + − Hot-Finished, Annealed, and Descaled Rods ⁵/₁₆to ⁷/₁₆(7.94 to 11.11), incl 0.012 (0.305) 0.012 (0.305) 0.018 (0.457) Over ⁷/₁₆to ⁵/₈(11.11 to 15.87), incl 0.014 (0.355) 0.014 (0.355) 0.020 (0.508) Over ⁵/₈to ³/₄(15.87 to 19.05), excl 0.016 (0.406) 0.016 (0.406) 0.024 (0.610) Hot-Finished, Annealed, and Ground or Turned Rods ³/₄to 3¹/₂(19.05 to 88.9), incl 0.010 (0.254) 0 0.008 (0.203)

1.2The following products are covered under this specification:

1.2.1Rods ⁵/₁₆to ³/₄in. (7.94 to 19.05 mm) excl in diameter, hot- or cold-finished, solution annealed and pickled or mechanically descaled.

1.2.2Rods ³/₄to 3¹/₂in. (19.05 to 88.9 mm) incl in diameter, hot- or cold-finished, solution annealed, ground or turned.

1.3The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4This 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 Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health and environmental practices, and determine the applicability of regulatory limitations prior to use.

1.5This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.