ASTM B536-19 (2025) PDF

Full title and description

ASTM B536-19 — Standard Specification for Nickel‑Iron‑Chromium‑Silicon Alloys Plate, Sheet, and Strip (covers UNS N08330 and UNS N08332). Specifies chemical composition, heat treatment/annealing, mechanical properties, grain‑size requirements (where applicable), dimensional tolerances and required tests for plate, sheet and strip intended for heat‑resisting and general corrosive service.

Abstract

This specification defines requirements for two nickel‑iron‑chromium‑silicon alloys (UNS N08330 and UNS N08332) supplied as plate, sheet and strip for heat‑resisting and corrosive environments. It sets composition limits, minimum tensile/yield/elongation requirements in the annealed condition, mandatory annealing temperatures, grain‑size criteria for UNS N08332, hardness ranges, and reference to general flat‑rolled nickel‑alloy requirements. Material is subject to chemical and mechanical verification and to the ordering/marking and tolerances described.

General information

• Status: Current (approved edition: B536‑19).
• Publication date: Current edition approved April 1, 2019; published 2019 (document commonly referenced as B536‑19).
• Publisher: ASTM International (formerly ASTM — American Society for Testing and Materials).
• ICS / categories: 77.150.40 — Nickel and chromium products (Products of non‑ferrous metals).
• Edition / version: B536‑19 (2019 edition).
• Number of pages: 3 pages (standard technical sheet length).

Scope

Applies to plate, sheet and strip of nickel‑iron‑chromium‑silicon alloys UNS N08330 and UNS N08332 intended for heat‑resisting applications and general corrosive service. Values are provided in inch‑pound units as standard (SI conversions informational). The specification does not address all safety issues; users must consult applicable SDS and safe‑handling requirements. Where appropriate, material must also meet the general requirements in ASTM B906 for flat‑rolled nickel and nickel alloys.

Key topics and requirements

• Covered alloys: UNS N08330 (Incoloy 330 / Alloy DS) and UNS N08332.
• Chemical composition limits (representative): Ni ≈ 34.0–37.0%, Cr ≈ 17.0–20.0%, Si 0.75–1.50%, C max (N08330) 0.08%, Mn ≤ 2.00%, P ≤ 0.03%, S ≤ 0.03%, Cu ≤ 1.00%, Pb ≤ 0.005%, Sn ≤ 0.025%; iron balance.
• Mechanical property minima (annealed): typical tensile and yield values — e.g. N08330 tensile ≈ 70,000 psi (483 MPa) minimum; N08332 tensile ≈ 67,000 psi (462 MPa) minimum; elongation ≥ 30% (in specified gauge length); Rockwell hardness ranges given for annealed condition.
• Heat treatment/annealing: specified minimum annealing temperatures (example: N08330 ≈ 1900°F / 1040°C; N08332 ≈ 2100°F / 1150°C) and cooling/processing notes.
• Microstructure: grain‑size requirement for annealed UNS N08332 (ASTM No. 5 or coarser); no grain‑size requirement for UNS N08330.
• Testing and inspection: mandatory heat/product chemical analysis, tensile testing, hardness checks and dimensional/tolerance inspection; conformity to referenced ASTM test methods where specified.
• Ordering information: purchaser to specify product form, condition, dimensional tolerances, special tests or supplementary requirements as needed.

Typical use and users

Used by material specifiers, end‑users and fabricators in chemical processing, heat‑treatment equipment, furnace components, heat exchangers and other applications requiring heat resistance and corrosion performance. Typical users include materials engineers, procurement/specification teams, metal service centers, plate/sheet manufacturers, and testing/quality control laboratories.

Related standards

Commonly referenced ASTM standards and documents associated with B536 include ASTM B906 (general requirements for flat‑rolled nickel and nickel alloys plate, sheet and strip), ASTM B899 (terminology for non‑ferrous metals and alloys), ASTM E112 (grain‑size determination) and relevant ASTM test methods for chemical and mechanical analysis. Other related product specifications and pipe/tube/fitting standards for the same alloys (e.g., B511/B511M, B546, B710 series) are used in conjunction where applicable.

Keywords

N08330; N08332; Incoloy 330; Alloy DS; nickel‑iron‑chromium‑silicon; plate; sheet; strip; heat‑resisting alloy; corrosive service; annealing; tensile; grain size; ASTM B536‑19.

FAQ

Q: What is this standard?

A: ASTM B536‑19 is the ASTM International specification for nickel‑iron‑chromium‑silicon alloys (UNS N08330 and UNS N08332) supplied as plate, sheet and strip, defining composition, heat treatment and required mechanical and inspection criteria.

Q: What does it cover?

A: It covers chemical composition limits, minimum mechanical properties in the annealed condition, required annealing temperatures, applicable grain‑size requirements (for N08332), hardness ranges, dimensional tolerances and required tests/inspections for plate, sheet and strip intended for heat‑resisting and general corrosive service.

Q: Who typically uses it?

A: Materials and mechanical engineers, procurement/specification professionals, producers and distributors of nickel alloys, fabricators, and QA/test laboratories involved in selecting, supplying or inspecting heat‑resisting alloy plate, sheet and strip.

Q: Is it current or superseded?

A: The designation B536‑19 refers to the 2019 edition (B536‑19). That 2019 edition is the currently referenced ASTM edition for this designation; purchasers should verify with ASTM International for any amendments, reissues or later revisions before critical procurement. (Check the official ASTM catalog for the absolute latest status.)

Q: Is it part of a series?

A: Yes. B536 is part of the suite of ASTM B‑series specifications administered by Committee B02 (Nonferrous Metals and Alloys), subcommittee B02.07 (Refined Nickel and Cobalt and Their Alloys). It sits alongside other flat‑rolled and wrought product specifications for nickel and nickel‑alloys and cross‑references general requirement documents such as ASTM B906 and terminology standards such as B899.

Q: What are the key keywords?

A: N08330, N08332, Incoloy 330, Alloy DS, nickel‑iron‑chromium‑silicon, plate, sheet, strip, heat‑resisting, corrosive service, annealing, tensile, grain size.