Alloy 330 Flat Head Screws
RAYCHIN SPECIALTY METALS FASTENERS: BOLTS, NUTS, SCREWS, WASHERS, STUDS, THREADED RODS, U-BOLT, J-BOLTS
STANDARD AND CUSTOMIZED, SMALL BATCH AND LARGE BATCH, IMPERIAL AND METRIC
An engineered high temperature resistant steel
Excellent high temperature stability and chemistry and specifications
Very oxidation and carburization resistant to 2100°F
Good resistance to thermal shock and quenching
Resistance to thermal shock from repeated quenching
High level of resistance to oxidation and carburization
Ability to handle thermal cycling
Provides resistance to scale formation up to about 2000°F
Good resistance to nitrogen-containing atmospheres where the oxygen content is low
High nickel content of 34-37% provides high resistance to chloride stress corrosion cracking and embrittlement
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RAYCHIN LIMITED
Specialist in Alloy 330 Flat Head Screws · UNS N08330 · 1.4886Alloy 330 Flat Head Screws: Countersunk Excellence for Extreme Heat
RAYCHIN LIMITED is a premier manufacturer of Alloy 330 Flat Head Screws. Designed for high‑temperature furnace environments, these screws feature a flush‑mounting countersunk head (82°, 90°, 100°, or custom angle) with your choice of slotted, Phillips, or hex drive. Our Alloy 330 flat head screws withstand cyclic oxidation, carburization, and thermal shock up to 1150°C. Ideal for vacuum furnaces, heat treating fixtures, petrochemical heaters, and gas turbine components. Produced to NAS, AN, MS, ANSI, ASTM, ASME, SAE, API, NACE, ISO, DIN, KS – or completely custom.
Alloy 330 Flat Head Screw – Types & Drive Options
We manufacture all common drive systems and head angles: 82° (UNC/UNF inch series), 90° (metric / ISO), 100° (aerospace / NAS), and special angles on request. Diameters from #0 (M1.6) up to 1" (M24), lengths 3mm to 200mm. Full thread, partial thread, and custom shank lengths available.
International Standards & Global Designations for Alloy 330
Our Alloy 330 Flat Head Screws are manufactured from material meeting these worldwide specifications:
UNS N08330 1.4886 X12NiCrSi35-16 ASTM B408 AMS 5592 AMS 5716 NAS 330 AN 330
Chemical Composition (Weight %) – Alloy 330 (UNS N08330 / 1.4886)
Our Alloy 330 flat head screws are produced from certified melts conforming to ASTM B408 / A473 limits:
Complete Mechanical Properties – Alloy 330 Flat Head Screws (Solution Annealed)
All screws are supplied in the solution annealed condition (1038‑1066°C / water quench). Minimum tensile requirements per ASTM B408 / A473 for bar stock used in fasteners:
High Temperature Performance of Alloy 330 Flat Head Screws
Alloy 330 is specifically formulated for elevated temperature service. The following data represent short‑time elevated temperature yield strength (0.2% offset) based on typical annealed condition:
Oxidation resistance: Continuous service in air up to 1150°C (2100°F); excellent resistance to scaling and carburization. [citation:1][citation:7]
Thermal Stability & Physical Data
Corrosion Resistance of Alloy 330 Flat Head Screws
While Alloy 330 is optimized for high‑temperature environments, it offers good resistance to many corrosive conditions:
- Oxidation & carburization: Exceptional resistance in air, combustion gases, and sulfur‑bearing atmospheres up to 1150°C. [citation:1]
- Nitriding: Good resistance to nitrogen‑rich atmospheres (e.g., cracked ammonia). [citation:1]
- Stress corrosion cracking: High nickel content (34‑37%) provides immunity to chloride SCC. [citation:1][citation:6]
- Aqueous corrosion: Similar to 310 stainless; suitable for organic acids, but NOT intended for strong reducing acids or chloride pitting environments (for seawater use 254 SMO).
Precision Manufacturing & Global Standards Compliance
CNC Machining & Heat Treatment
Our Alloy 330 flat head screws are CNC formed and thread rolled from solution‑annealed bar stock. Each lot undergoes solution annealing (1038‑1066°C) and water quenching to guarantee optimum high‑temperature properties. Automated optical inspection verifies head angle, drive depth, and thread form to ASME/ISO specifications.
Traceability & Third‑Party Testing
Full traceability from melt to finished product. Certificates EN 10204 3.1/3.2. NDT (PT, MT, UT) available on request. Our quality system: ISO 9001:2015, AS9100D. We also comply with NAS, AN, MS, ANSI, ASTM, ASME, SAE, API, NACE, ISO, DIN, KS, JIS, GB. Custom designs welcome.
Flat Head Screw Countersink Angles & Typical Uses
Our Alloy 330 flat head screws are used in vacuum furnaces, annealing covers, burner nozzles, ceramic fiber module attachments, and exhaust systems.
Why RAYCHIN LIMITED – The Alloy 330 Flat Head Screw Authority
Metallurgical expertise
Engineers specializing in high‑temperature alloys. We guarantee proper solution annealing and rapid quench for every Alloy 330 flat head screw. In‑house PMI and mechanical testing.
Global approvals & inventory
ISO 9001:2015, AS9100D. Extensive stock of inch & metric sizes, all common drives. Fast turnaround for prototypes and shutdowns.
Custom capabilities
Special head angles, non‑standard lengths, reduced shank, left‑hand threads, and custom drive depths. High‑temperature anti‑seize coatings available.
Full compliance
Manufactured to NAS, AN, MS, ANSI, ASTM, ASME, SAE, API, NACE, ISO, DIN, KS. Material certifications with full traceability. We speak English, German, Mandarin, Japanese.
Request a quote for Alloy 330 Flat Head Screws – any standard or custom specification.
Contact our engineering team for application assistance, high‑temperature performance data, or NACE MR0175 suitability (case‑by‑case).
sales@ray-chin.com | +86 534 2166 566ISO 9001:2015 · AS9100D · EN 10204 3.1/3.2 · third‑party inspection (DNV, Lloyds, TÜV) welcome.
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