Inconel Alloy 600 Fasteners

Nickel-Chromium Alloy – High-Temperature & Corrosion Service

Buy Inconel 600 (UNS N06600 / Werkstoff 2.4816 / ASTM B166) bolts, stud bolts, hex nuts, and custom fasteners from Exotic Alloy. Inconel 600 is a nickel-chromium alloy with outstanding resistance to high-temperature oxidation and a wide range of corrosive media. It retains strength from cryogenic temperatures up to 1093°C (2000°F).

Exotic Alloy manufactures Inconel 600 fasteners conforming to ASTM B166, ASME SB-166, AMS 5665, and DIN 2.4816 in metric (M6–M100) and imperial (¼"–4") sizes for furnace applications, chemical processing reactors, and nuclear reactors.

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Product Range

Alloy 600 Fasteners Available

Alloy 600
Hex Bolts

Alloy 600
Heavy Hex Bolts

Alloy 600
Stud Bolts

Alloy 600
Threaded Rods

Alloy 600
Anchor Bolts

Alloy 600
Hex Nuts

Alloy 600
Washers

Alloy 600
Cotter Pins

Alloy 600
Springs

Alloy 600
Circlips

Alloy 600
Coated Fasteners

Alloy 600
Custom Spacers

Technical Data

Alloy 600 Specifications

Chemical Composition — Inconel Alloy 600 (wt. %)

Element	Ni	Cr	Fe	Mn	Cu	Si	C	S
Min %	72.00	14.00	6.00	–	–	–	–	–
Max %	Balance	17.00	10.00	1.00	0.50	0.50	0.15	0.015

Mechanical Properties — Inconel Alloy 600

Condition	UTS (MPa)	YS 0.2% (MPa)	Elongation (%)	Hardness
Annealed	550–750	240	30	≤ 92 HRB
Cold Drawn (Spring Temper)	≥ 895	≥ 586	20	≤ 40 HRC

Physical Properties

Density	8.47 g/cm³
Melting Range	1354–1413°C (2470–2575°F)
Specific Heat Capacity	444 J/kg·K at 20°C
Thermal Conductivity	14.9 W/m·K at 21°C
Thermal Expansion	13.3 µm/m·°C (21–538°C)
Electrical Resistivity	1.03 µΩ·m

Equivalent Grades & Standards

UNS	Werkstoff / DIN	EN / BS	AFNOR
N06600	2.4816	NiCr15Fe	NC15FE11M

Key Specifications: ASTM B166 / B167 / B168 / ASME SB-166

Machinability: Inconel 600 machines similarly to austenitic stainless steels. Use low speeds, high feeds, flood cooling, and sharp carbide tooling to minimize work hardening. Electrochemical grinding (ECG) is preferred for tight-tolerance threaded features.

Welding: Easily welded by GTAW, GMAW, and SMAW with Inconel 82 (filler) or Inconel 182 (electrode). No post-weld heat treatment required for most corrosion service. Keep interpass temperature below 100°C.

Forging: Hot forge between 927–1177°C (1700–2150°F). Material can also be cold formed in the annealed condition with intermediate anneals at 1010–1066°C (1850–1950°F).

Heat Treatment: Anneal at 1010–1066°C (1850–1950°F), followed by rapid water quench or air cool. No age-hardening treatment exists for Alloy 600.

Alloy 600 offers outstanding resistance to dry chlorine and HCl gases at high temperatures, strongly alkaline solutions, and sulfur-containing atmospheres. High nickel content (72% min) provides immunity to chloride-induced SCC.

Key Characteristics

Outstanding high-temperature strength and oxidation resistance.
Excellent resistance to pitting, crevice corrosion, and intergranular attack.
High fatigue and thermal-fatigue strength in cyclic temperature service.
Superb resistance to chloride-ion stress-corrosion cracking.
Maintains structural integrity from cryogenic to extreme high-temperature service.

Typical Applications

Aerospace engineering: jet engine turbine blades, discs, and casings.
Chemical processing: reactor vessels, pressure containment bolting.
Marine and subsea: offshore wellhead, Christmas tree, HPHT connectors.
Nuclear power: reactor core hardware, primary coolant system fasteners.
Power generation: steam turbine bolting, ultra-supercritical boiler components.

Alloy 600