Inconel 718 Bolts Supplier

Ultra-High Strength and Excellent Toughness
Exceptional High-Temperature Performance
Ketahanan Korosi yang Luar Biasa
Excellent Fatigue and Creep Resistance

Inconel 718 Bolts: Ultra-High Strength Fasteners for Extreme Environments

SSM provides Inconel 718 bolts engineered for the most demanding high-temperature and corrosive environments. These precipitation-hardened nickel-chromium superalloy fasteners deliver an exceptional combination of ultra-high strength, outstanding fatigue life, and superior resistance to oxidation, corrosion, and stress corrosion cracking, making them the preferred choice for critical aerospace, oil & gas, and high-performance industrial applications.

SSM Inconel 718 Bolts are manufactured in strict accordance with ASTM, ASME, NASM, and DIN standards, with full material traceability and certification (including EN 10204 3.1) available. They are specifically engineered for use in gas turbines, jet engines, downhole tools, nuclear components, and other extreme-service applications where reliability under severe thermal and mechanical stress is paramount.

Technical Specifications

Parameter	Keterangan
Product Name	Inconel 718 Bolts / Stud Bolts
Bahan	Nickel-Chromium Superalloy UNS N07718
Tipe Produk	Bolts, Stud Bolts, Threaded Rods
Key Strengths	Ultra-High Tensile & Yield Strength; Excellent Fatigue & Creep Rupture Strength
Perlakuan Panas	Solution Annealed & Aged (per AMS/ ASTM standards)
Kisaran Suhu	Cryogenic to Approx. 700°C (1300°F)
Tahan Korosi	Excellent oxidation, carburization, and chloride SCC resistance
Standar yang Berlaku	ASTM / ASME, AMS, NASM, DIN, ISO (customizable)
Kisaran Ukuran	Customized (M3 to M100+ & equivalent inch series)
Permukaan Akhir	Plain / Xylan / Ni-PTFE or other anti-galling coatings (optional)
Primary Applications	Aerospace (engine components), Oil & Gas (downhole), Nuclear, High-Temperature Industrial
Certification	EN 10204 3.1 / 3.2, Mill Test Certificates, Full Traceability
Warranty	As per specific contract and application conditions
After-sales Service	Full technical documentation, material selection support, application consultation

Material Properties – inconel 718

Inconel 718 adalah nickel-chromium-iron-based superalloy strengthened by precipitation hardening (age hardening). It is renowned for its exceptional combination of strength, toughness, and fatigue resistance at high temperatures (up to 700°C), along with good corrosion resistance.

Chemical Composition (wt.%)

Elemen	Rentang Konten	Primary Function
Nikel (Ni)	50 – 55%	Base element, provides austenitic matrix, high-temperature strength, and corrosion resistance foundation.
Kromium (Cr)	17 – 21%	Provides oxidation and high-temperature corrosion resistance.
Besi (Fe)	Keseimbangan	Major alloying element, reduces cost, stabilizes the austenitic structure.
Niobium (Nb) + Tantalum (Ta)	4.75 – 5.50%	Key strengthening elements, form the primary age-hardening phase γ” (Ni₃Nb).
Molibdenum (Mo)	2.80 – 3.30%	Provides solid solution strengthening, enhances creep resistance and resistance to pitting/crevice corrosion.
Titanium (Ti)	0.65 – 1.15%	Secondary strengthening element, contributes to the formation of the strengthening phase γ’ (Ni₃(Al, Ti)).
Aluminium (Al)	0.20 – 0.80%	Secondary strengthening element, combines with titanium to form the γ’ phase.
Karbon (C)	≤ 0,08%	Controlled impurity, forms carbides.
Mangan (Mn)	≤ 0,35%	Impurity/deoxidizer.
Silikon (Si)	≤ 0,35%	Impurity/deoxidizer.
Tembaga (Cu)	≤ 0,30%	Controlled impurity.
Phosphorus (P), Sulfur (S)	≤ 0,015%	Strictly controlled harmful impurities.
Boron (B)	≤ 0.006%	Trace addition, improves grain boundary strength and creep resistance.

Sifat Mekanik (After Standard Heat Treatment)

Standard Heat Treatment: Typically involves solution annealing at 955-1010°C, followed by a two-step aging treatment at 718-760°C.

Typical Room Temperature Properties (e.g., bar/forgings):

Tensile Strength (Ultimate): ≥ 1275 MPa (185 ksi)
Yield Strength (0.2% Offset): ≥ 1035 MPa (150 ksi)
Pemanjangan: ≥ 12%
Reduction of Area: ≥ 15%

High-Temperature Performance (Core Advantage):

Retains a significant portion (approximately >80%) of its room temperature strength at 650°C (1200°F), which is one of its primary engineering advantages.
Bagus sekali creep Dan stress rupture resistance.

Kinerja Suhu Rendah:

Maintains excellent toughness and strength at cryogenic temperatures (e.g., liquid hydrogen, helium temperatures) with no ductile-to-brittle transition.

Inconel 718 Bolts Applications

Antariksa: Turbine disks, blades, casings, and fasteners for jet engines; rocket engine components.
Power Generation: Gas turbine blades, disks, bolts; nuclear reactor components.
Minyak & Gas: Deep-well downhole tools, valves, logging equipment, high-strength fasteners.
High-Performance Manufacturing: Molds, extrusion screws, high-temperature testing equipment.

Penyedia Flange Terpadu untuk Semua Kebutuhan Anda

SSM has significant product advantages in manufacturing Inconel 718 Bolts. Whether it’s quality or price, we will meet your needs.

Inconel 718 Bolts standards and specifications

Inconel 718 bolts (UNS N07718) are a benchmark high-performance fastener solution in aerospace, energy, and high-temperature industries. The main standards and specifications commonly referenced by international buyers are organized below into “Material / Fasteners / Manufacturing / Testing / Coating” categories.

Kategori	Standard / System	Description / Notes (For Inconel 718 Bolts)
Material Standards	Nomor PBB N07718	Nickel-chromium superalloy grade (core identification standard).
	AMS 5662 / 5663	Aerospace Material Specification for bar, forgings, and ring forgings (primary standard).
	ASTM B637 / ASME SB-637	Precipitation-hardening nickel alloy bars, forgings, and fastener stock.
Fastener Standards	ASTM A286 / AMS 5737	High-temperature alloy steel bolts, often used as a reference class, but specific 718 specs supersede. For 718, technical agreements referencing AMS 5662/5663 or ASTM B637 are key.
	ASTM A453 / AMS 5731	High-temperature alloy steel bolts (Grade 660), a common performance benchmark, with Inconel 718 typically exceeding its capabilities.
	NASM / NAS	National Aerospace Standards (e.g., NASM 11300 series) for aerospace fasteners. Specific detailed standards govern design.
	ASME B18.2.1 / B18.31.2	Hex bolts and stud bolts dimensional standards (applied based on material spec).
European / International Standards	DIN / EN	Referenced via EN standards for nickel alloys or specific project procurement specifications.
	ISO 2604 / ISO 6208	International standards for steel and nickel alloy products (less common than AMS for aerospace).
	EN 10204 3.1 / 3.2	Material test certificate (often mandatory for European projects, providing full traceability).
Chemical & Metallurgical Properties	AMS 5662 / ASTM B637	Define required chemical composition ranges.
	Solution & Aging Heat Treat	Per AMS 5662/5663: Solution Anneal (1700-1800°F) + Age (1325°F for 8 hrs, furnace cool to 1150°F, hold 8+ hrs, air cool). Critical for achieving specified mechanical properties.
Inspection & Testing	ASTM E8 / E21	Tensile testing at room & elevated temperatures (mandatory).
	ASTM E10 / E18	Brinell/Rockwell hardness testing.
	ASTM E139 / E292	Creep and stress-rupture testing (for critical applications).
	Grain Size (ASTM E112)	Fine grain size (typically ASTM 5 or finer) required for optimal fatigue and stress rupture life.
	PMI Testing (XRF / OES)	Positive Material Identification to verify alloy chemistry.
Surface Treatment & Anti-Galling	Passivation	Per AMS 2700 or ASTM A967 (Nitric acid method), to remove free iron and improve surface corrosion resistance.
	Anti-Galling Coatings	PTFE / Xylan / Molybdenum Disulfide (MoS₂) / Nickel-PTFE composite coatings. Highly recommended for threaded assemblies to prevent seizing in high-temperature/stress conditions.
	Shot Peening (Optional)	Per AMS 2430, to induce compressive surface stresses and improve fatigue life.
Industry Standards / References	AMS Specifications	The primary governing system for aerospace applications (e.g., AMS 5662, 5737).
	ASME Boiler & Pressure Vessel Code, Section III (Nuclear)	Specifies requirements for nuclear component fasteners.
	API 6A / 17D	For oil & gas downhole and subsea equipment, specifying materials for sour service (NACE MR0175 compliance).
	NACE MR0175 / ISO 15156	Material requirements for sulfide stress cracking (SSC) resistance in sour oil & gas environments (718 generally has excellent resistance).

Catatan: For Inconel 718 fasteners, procurement is typically governed by detailed technical purchase specifications that directly invoke AMS standards (for aerospace/defense) or ASTM/ASME standards with supplementary project requirements (for oil & gas, power generation). The specific heat treatment condition, testing regimen, and coating requirements must be explicitly defined in the purchase order.

Sumber Daya Lainnya:

https://en.wikipedia.org/wiki/Stainless_steel