Oshwin Overseas manufactures Incoloy 800 Bolts in Mumbai, India, to ASTM B408 UNS N08800. These bolts are used in furnaces and heat exchangers that go through repeated heating and cooling. We produce threaded rod, stud bolts, nuts, screws and washers as per client's drawing.
Nickel Alloy 800 costs less than Inconel but still handles high heat well. Oshwin supplies Incoloy 800 fasteners to UAE, Saudi Arabia, Qatar and the USA with test certificates on every batch.
Furnace-Grade Ni Alloy 800
Chromium-nickel balance built for repeated heat cycles.
M6-M64 Currently Stocked
Priority dispatch for process-plant shutdowns.
(Base 800)
- Grade
- UNS N08800
- Standard
- ASTM B408 / ASME SB408
- Size Range
- M6-M64 / ¼″-2.5″
- Hardness
- 192 HB max
- MTC
- EN 10204 3.1
- Lead Time
- 2-5 Days
Incoloy 800 Threaded Rod Manufacturer in India for High-Temperature Furnace and Process Applications
ASTM B408 UNS N08800 Hex Bolts to ASME B18.2.1 & Heavy Hex Nuts to ASME B18.2.2, Available in M6 to M64
Table of Contents
- Incoloy 800 Bolts Specification
- ASTM B408 UNS N08800 Fastener Types
- Alloy 800 Bolts Chemical Composition
- UNS N08800 Bolts Mechanical Properties
- DIN 1.4876 Nut Bolt Equivalent Grades
- Incoloy 800 Bolts High-Temperature Oxidation Resistance
- Alloy 800 Hex Bolts & Nuts Torque Formula
- AMS 5766 Pin Bolt & Coupling Nut Assemblies
- UNS N08800 Bolts & Nuts Buyer Enquiries We Handle
- Applications of Incoloy Alloy 800 Fasteners
- FAQs - Incoloy 800 Bolts
Incoloy 800 Bolts Specification
Oshwin Overseas runs both cold-headed and hot-forged production lines for Incoloy 800 Bolts from our Kalamboli, Navi Mumbai factory. Incoloy 800 is a softer, solid-solution alloy compared with age-hardened nickel superalloys, so a wider size range stays cold-formable.
Ex-stock includes Incoloy 800 Hex Bolts, Heavy Hex Bolts and Stud Bolts. All are cut to length on request.
Incoloy 800 Cold Headed Bolts
M6-M30 / 1/4″-1-1/4″, lengths 6-200mm
Alloy 800 Hot Forged Fasteners
M30-M100 / 1-1/4″-4″, lengths up to 1200mm
Certification
EN 10204 3.1 Material Test Certificate
Compliance
NACE MR0175, PMI testing on request
Service Range
Up to 980°C (1800°F) in oxidizing atmospheres
Hex Bolt Dimensions
ASME B18.2.1 - head, WAF & thread length
Hex Nut Dimensions
ASME B18.2.2 - thickness & WAF
Thread Tolerance
Metric Coarse, UNC & UNF thread forms
Sizes Buyers Order Most
Same-Day Quote - share your bolt type and size, get an ex-Mumbai price within 24 hours.
Incoloy 800 Bolts Manufacturer in India for Pin Bolts, Coupling Nuts & Hex Sets
Every batch goes through forging, machining and testing before it ships.
Request Quote NowASTM B408 UNS N08800 Fastener Types
From Incoloy 800 Hex Bolts to threaded rod and coupling nuts, Oshwin stocks the full range. It's built for furnace and process-plant bolting.
Alloy 800 Bolts Chemical Composition
Per ASTM B408 (Ni-Fe-Cr, solid-solution strengthened). Alloy 800 Bolts derive their oxidation resistance from this chromium-nickel balance. Full heat-wise composition on the EN 10204 3.1 certificate.
UNS N08800 Bolts Mechanical Properties
UNS N08800 Bolts mechanical properties are set by ASTM B408 in the annealed condition. Confirm these figures against your mill certificate for design use.
Physical properties below are typical figures published for the Incoloy 800 series. Confirm against your mill certificate for design use.
DIN 1.4876 Nut Bolt Equivalent Grades
Incoloy 800 Threaded Rod Exporter in India - Priority Cargo to USA & Mexico
Ex-Mumbai stock, cut to length, ready for your next shutdown window.
Request Export QuoteIncoloy 800 Bolts High-Temperature Oxidation Resistance
Alloy 800 Hex Bolts & Nuts Torque Formula
Bolt torque follows the formula T = K × F × d. F is the target clamp load and K is a friction coefficient set by the lubricant. This holds for Incoloy 800 the same way it does for steel bolting.
Galling Risk
Nickel-iron-chromium threads can gall under dry torque
Anti-Seize
Use a nickel-alloy-rated anti-seize on assembly
High-Temp Lubricant
Needed where the joint runs hot in service
Buyer-Specified Torque
We confirm your exact torque target - never a generic figure
AMS 5766 Pin Bolt & Coupling Nut Assemblies
Furnace baskets and process-skid assemblies often need a plain pin bolt, not a headed hex bolt. It locks with nuts on each side.
UNS N08800 Bolts & Nuts Buyer Enquiries We Handle
Here are recent requirements we've handled for Incoloy 800 Bolts and Nuts.
M20 & M16 Incoloy 800 pin bolts, 4 nuts each - 2 nuts per side, 120mm length. Qty 4 each, furnace rated above 800°C.
M16 & M20 headed bolts with 2 nuts - 100mm length, Incoloy 800. Qty 10 each, same Laredo, Texas order.
M33-3.5 x 100 Incoloy 800 hex head bolts with matching hex nuts - 15pcs each, for a Huntsville, Alabama buyer.
5/8" x 4" and 3/4" x 4" Incoloy 800 hex bolts - 30pcs and 60pcs, shipped to a Mexico buyer.
Incoloy 800 coupling nuts for 3/8" threaded rod - 4pcs, least-expensive suitable material, for a Panama City, Florida buyer.
Incoloy 800 heavy hex nuts and washers - matched to the same heat as the bolt set. EN 10204 3.1 traceability included.
Applications of Incoloy Alloy 800 Fasteners
Furnace Muffles & Heat-Treatment Baskets
Ethylene Cracking Tube Hangers
Carburizing & Nitriding Fixtures
Reformer & Process Piping Supports
Power Boiler & Superheater Hardware
Incoloy 800 Bolts Supplier in India with NACE Compliance
Incoloy 800 stock, ready for immediate dispatch.
Get Supplier QuoteOshwin Overseas Manufacturing Expertise
As an Incoloy 800 fasteners manufacturer, Oshwin's skilled production line handles material drawing, forging and tapping within our own factory. Because Incoloy 800 is a softer, solid-solution alloy, our cold-heading range extends further than it does on age-hardened nickel superalloys.
Incoloy 800 Bolts Standards Compliance
We accept third-party inspection on every order along with full standards compliance and material traceability.
Testing, Documentation & Third-Party Inspection
Our Export Network
As Incoloy 800 bolts suppliers in USA, we ship most volume there. Top destinations are Laredo TX, Huntsville AL and Panama City FL. Mexico orders regularly too, alongside our regular Gulf and Southeast Asia customers.
Americas
USA
Canada
Mexico
Middle East
UAE
Saudi Arabia
Qatar
Kuwait
Oman
Europe & UK
United Kingdom
Netherlands
Germany
Turkey
Belgium
Africa
South Africa
Egypt
Nigeria
Southeast & South Asia
Singapore
Malaysia
Thailand
Indonesia
Philippines
Vietnam
South Korea
Australia
Recent Incoloy 800 Bolt Export Supplies
Mumbai
Laredo, TX
Product: Incoloy 800 Pin Bolts & Headed Bolts, 4 Nuts Each
Size: M20 & M16, 120mm/100mm L, 28 pieces total
Mumbai
Huntsville, AL
Product: Incoloy 800 Hex Head Bolts & Matching Hex Nuts
Size: M33-3.5 x 100mm, 15pcs + 15pcs
Mumbai
Mexico
Product: Incoloy 800 Hex Bolts
Size: 5/8"x4" & 3/4"x4", 30pcs + 60pcs
Mumbai
Panama City, FL
Product: Incoloy 800 Coupling Nuts, 3/8″ Threaded Rod
Size: 3/8"-16, 4 pieces
Delivery Estimate From Ready Stock
Ships from Mumbai
Stock orders leave our facility in 2-5 working days
Sea Freight
Best economy option, 15-32 days depending on port
Air Freight
3-6 days when a shutdown deadline can't wait
Get a Firm Date
Tell us your discharge port and we'll confirm the ETA
USA20-28 daysMexico24-32 daysCanada22-30 daysUAE10-16 daysSea freight, port-to-port. Need it faster? Air freight brings any of these down to 3-6 days.
FAQs - Incoloy 800 Bolts
Incoloy 800 is a nickel-iron-chromium alloy (UNS N08800). It resists heat and oxidation better than regular stainless steel bolts.
Incoloy 800 handles about 980°C (1800°F) continuous service in oxidizing air, resisting scale and carburization.
Bar and rod stock follows ASTM B408 / ASME SB408, UNS N08800. Fastener dimensions follow ASME B18.2.1 for bolts and ASME B18.2.2 for nuts.
Yes. We supplied M20 and M16 Incoloy 800 pin bolts for a Laredo, Texas furnace project. 4 nuts each, 2 per side, 120mm length.
Ex-stock: M6 to M64 metric, 1/4 inch to 2.5 inch. Custom pin bolts, coupling nuts and non-standard lengths made to drawing.
Yes. Nickel-iron-chromium threads can gall under dry torque. Use a calibrated wrench with anti-seize and always confirm your own torque target.
Yes. We supply Incoloy 800 coupling nuts to join two threaded-rod lengths. A 3/8 inch rod set was quoted for a Panama City, Florida buyer.