Alloy 600 (UNS N06600)
The base nickel–chromium–iron engineering alloy: oxidation and chloride-cracking resistance across a very wide temperature span.
- UNS
- N06600
- W.Nr / EN
- 2.4816
- Density
- 8.47 g/cm³
- Service range
- Cryogenic to ~1095 °C (oxidation)
About Alloy 600
Alloy 600 is a solid-solution nickel–chromium–iron alloy that serves as the general-purpose material of the nickel family. Its high nickel content gives near-immunity to chloride-ion stress-corrosion cracking, while chromium provides oxidation resistance in continuous service to roughly 1095 °C.
It is non-magnetic, readily formed and welded, and does not embrittle at cryogenic temperatures — a rare combination that keeps it specified across furnace, chemical and heat-treating equipment. DMK Alloys produces Alloy 600 blanks, bars and components for heat-resistant assemblies.
Alloy 600 chemical composition (weight %)
| Element | Limit / range |
|---|---|
| Ni (+Co) | ≥ 72.0 |
| Cr | 14.0 – 17.0 |
| Fe | 6.0 – 10.0 |
| C | ≤ 0.15 |
| Mn | ≤ 1.0 |
| Si | ≤ 0.50 |
| Cu | ≤ 0.50 |
| S | ≤ 0.015 |
Composition limits per the commonly referenced standards listed below. Order-specific limits may differ — confirm against the governing specification.
Alloy 600 mechanical properties (typical)
| Condition / form | Tensile, MPa | 0.2% Yield, MPa | Elongation, % |
|---|---|---|---|
| Bar, annealed, room temp. | 550 – 690 | ≥ 240 | ≥ 30 |
| Sheet, annealed, room temp. | ≥ 550 | ≥ 240 | ≥ 30 |
Values are typical or specification-minimum levels for guidance only — not a guarantee of properties. Certified values are established by testing against the ordered specification.
Alloy 600 specifications & international equivalents
| System | Designation | Covers |
|---|---|---|
| UNS | N06600 | All product forms |
| AMS | AMS 5665 | Bars, forgings |
| AMS | AMS 5540 | Sheet, strip, plate |
| ASTM | ASTM B166 | Rod, bar, wire |
| ASTM | ASTM B168 | Plate, sheet, strip |
| BS | BS 3076 NA14 | Bars (UK cross-reference) |
| W.Nr / EN | 2.4816 · NiCr15Fe | European cross-reference |
Cross-references are for guidance; the governing document is always the specification cited on your purchase order or drawing.
Alloy 600 physical properties
| Property | Typical value |
|---|---|
| Density | 8.47 g/cm³ |
| Melting range | 1354 – 1413 °C |
| Modulus of elasticity (family-typical) | ≈ 200 – 220 GPa |
| Indicative service range | Cryogenic to ~1095 °C (oxidation) |
Forms we manufacture
- Bars
- Forged blanks
- Sheet-based fabrications
- Components to drawing
Dimensional ranges and delivery conditions are confirmed per enquiry.
Where Alloy 600 earns its keep
Typically specified for:
- Furnace muffles
- Retorts
- Heat-treatment fixtures
- Chemical-process equipment
- Steam-generator components
Also consider
Alloy 625
UNS N06625 · W.Nr 2.4856AMS 5666 · AMS 5599
Solid-solution nickel–chromium–molybdenum–niobium alloy with outstanding corrosion resistance and strength without age hardening.
Alloy X-750
UNS N07750 · W.Nr 2.4669AMS 5667 / 5668 / 5670 / 5671 · AMS 5598
Age-hardenable nickel–chromium alloy for springs, fasteners and rotating hardware needing strength plus relaxation resistance.
Alloy 601
UNS N06601 · W.Nr 2.4851AMS 5870 · ASTM B166
Aluminium-bearing nickel–chromium alloy with exceptional resistance to oxidation and spalling in cyclic high-temperature service.
Request Alloy 600 to your specification
State the governing standard, form, dimensions, quantity and testing requirements — the export team responds with a manufacturer's quotation.