This specification covers nickel-chromium-iron-molybdenum-copper alloy rods (UNS N06007, N06975, N06985, N06030, and N08031), hot- or cold-finished, solution annealed, ground, or turned, for use in general corrosive service. Heat and product (check) analysis of the alloy shall conform to the chemical composition requirements prescribed for nickel, chromium, iron, molybdenum, copper, manganese, cobalt, carbon, tungsten, silicon, phosphorus, sulfur, columbium and tantalum, titanium, and nitrogen. The material shall conform to the specified straightness criteria and to the mechanical property requirements including tensile strength, yield strength, and elongation, as determined by tension test.

1.1 This 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

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

⁵/₁₆ to ³/₄ (7.94 to 19.05), incl

90 000 (621)

35 000 (241)

35

Over ³/₄ to 3¹/₂ (19.05 to 88.9), incl

85 000 (586)

30 000 (207)

30

N06975

⁵/₁₆ to 3¹/₂ (7.94 to 88.9), incl

85 000 (586)

32 000 (221)

40

N06985

⁵/₁₆ to ³/₄ (7.9 to 19.05), incl

90 000 (621)

35 000 (241)

45

Over ³/₄ to 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

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

⁵/₁₆ to ⁷/₁₆ (7.94 to 11.11), incl

0.012 (0.305)

0.012 (0.305)

0.018 (0.457)

Over ⁷/₁₆ to ⁵/₈ (11.11 to 15.87), incl

0.014 (0.355)

0.014 (0.355)

0.020 (0.508)

Over ⁵/₈ to 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

³/₄ to 3¹/₂ (19.05 to 88.9), incl

0.010 (0.254)

0

0.008 (0.203)

1.2 The following products are covered under this specification:

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

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

1.3 The 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.

1.4 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 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.

1.5 This 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.