What Sets Ganpat Industrial’s Inconel 625 Washers Apart In Global Markets?
Nickel-Chrome-Moly Certified
Every heat traceable to UNS N06625 with full MTC 3.1
One Enquiry, Full Range
Flat • Lock • Spring • Sealing — single PO
Cryogenic To 982°C Rated
Stable strength from LNG duty to red-hot exhaust ducting
NACE & PMI Verified
Sour-service grade checked before it ships
Quote In 24 Hours
Ready stock on standard sizes — ships same week
Inconel 625 Washer Snapshot
- 1Type: Flat, Lock, Spring, Sealing, Conical, Fender, Plain, Square, Machine, Star, Slotted
- 2Size Range: M3 to M36 • OD 6 mm to 70 mm • per ISO 7089
- 3Common Grades: UNS N06625, DIN/Werkstoff 2.4856, AMS 5666, ASTM B564
- 4Testing: PMI, NACE / Sour Gas, Dimensional Check, Third-Party Inspection
- 5Documentation: MTC 3.1, NABL Lab Report, Packing List, Certificate Of Origin
- 6Origin: Indian origin • US origin • European origin — heat traceable
Or call our Mumbai office: +91 22 6743 7134 • Fast dispatch on ready stock sizes
Ganpat Industrial Corporation is a manufacturing and exporting company based out of Mumbai, with more than 25 years of experience in supplying high alloy fasteners in India, GCC countries, and Southeast Asian nations.The company makes UNS N06625 washers by forging using certified bars/plates as per your drawings into flat, lock, spring, or sealing forms.
Mumbai · Inconel 625 Washer Manufacturer & Exporter
Inconel 625 Washers Built For 982°C Heat, Sour Gas And Seawater Chlorides
Ganpat Industries manufactures UNS N06625 / DIN 2.4856 Washers according to ASTM B564 & AMS 5666 standards for users who operate LNG Trains, subsea manifolds, aero-engine ducting and sour gas wellheads in India, the Gulf Cooperation Council countries
- ✓ISO 9001:2015
- ✓ISO 14001:2015
- ✓PED Certified
- ✓NACE MR0175 Compliant
- ✓Petrofac Approved
Manufacturer Of UNS N06625 Spring & Lock Washers With ASME & DIN Standards
Inconel 625 Washers Specification
We are a leading Inconel 625 Washers Supplier in India, offering fully tested, mill-certified washers on every order.
AMS 5666 Flat Washer
- Standard: AMS 5666 / ASTM B564
- Profile: ISO 7089 flat ring
- Finish: Bright Annealed / Pickled & Passivated
- Use: General flange & bolted-joint bearing
DIN 2.4856 Lock Washer
- Standard: DIN 127
- Profile: Split-ring spring lock
- Finish: Natural spring temper
- Use: Anti-loosening under vibration
UNS N06625 Spring Washer
- Standard: DIN 137
- Profile: Curved / wave disc
- Finish: Precision-ground bearing face
- Use: Load compensation in thermal-cycling joints
Inconel 625 Sealing Washer
- Standard: Bonded seal, NBR / PTFE insert
- Profile: Metal-bonded elastomer ring
- Finish: Leak-tight torque seating
- Use: Hydraulic & pneumatic port sealing
ASTM B564 Conical Washer
- Standard: DIN 6796
- Profile: Belleville disc, conical
- Finish: Precision-ground taper
- Use: High clamp load on single-bolt joints
Inconel 625 Square Washer
- Standard: Square plate, custom per drawing
- Profile: Wide bearing plate
- Finish: Mill / Bright Annealed
- Use: Timber & structural-steel connections
Provide UNS N06625 Spring Washer Pimarily Used in Ready Stock at Factory Prices
Types Of UNS N06625 Washers
As a trusted Inconel 625 Washers Supplier in India, we stock Flat, Lock, Spring, Sealing and Conical types across all standard sizes
AMS 5666 Flat Washer
ISO 7089
DIN 2.4856 Lock Washer
DIN 127
Inconel 625 Sealing Washer
Bonded Seal
UNS N06625 Spring Washer
DIN 137
ASTM B564 Conical Washer
DIN 6796
Inconel 625 Fender Washer
Wide OD
ASTM B564 Plain Washer
ASME B18.22.1
UNS N06625 Square Washer
Square Plate
Need A Custom Inconel 625 Ring Or Disc Size?Share your drawing — get a factory-price quote within 24 hours.
DIN 2.4856 Lock Washer Chemical Composition
Nickel
Balance (Min. 58.0%)
Chromium
20.00–23.00%
Molybdenum
8.00–10.00%
Niobium + Tantalum
3.15–4.15%
Iron
≤ 5.00%
Carbon
≤ 0.10%
Manganese
≤ 0.50%
Silicon
≤ 0.50%
Phosphorus
≤ 0.015%
Sulphur
≤ 0.015%
Inconel 625 Washer Mechanical Properties
Tensile Strength (MPa)
≥ 827
High Strength
Yield Strength (MPa) (0.2%)
≥ 414
Design Limit
Elongation (In 4D)
≥ 30%
Ductility
Hardness
≤ 220 HB / 35 HRC
Wear Resistance
Inconel 625 vs Inconel 718 Washer
Inconel 625 Washer
- Density: ≈ 8.44 g/cm³
- Max Service Temp: ≈ 982°C
- Strengthening: Solid-Solution (No Ageing)
- Corrosion Resistance: Superior Chloride & Sour Gas
- Relative Cost Index: 1.3x–1.6x vs SS316
Inconel 718 Washer
- Density: ≈ 8.19 g/cm³
- Max Service Temp: ≈ 700°C
- Strengthening: Precipitation-Hardened
- Corrosion Resistance: Very Good
- Relative Cost Index: 1.4x–1.7x vs SS316
UNS N06625 Spring Washer Equivalent Grades
ASTM / ASME / AMS
- ASTM B564 (Forgings)
- ASTM B446 (Bar & Wire)
- ASTM B443 (Plate)
- AMS 5666
DIN / WERKSTOFF
- Werkstoff 2.4856
- NiCr22Mo9Nb
- DIN 17752
BS
- BS 3072 NA21
- BS EN 10095
JIS
- NCF625
- JIS G4901
GB
- GB/T 15007
- NS336
UNS
- UNS N06625
- Common Name: Inconel® 625
Buying In Bulk For An EPC Project?Send your BOQ — factory price, MTC 3.1, dispatch same week.
Precautions While Installing AMS 5666 Flat Washer
Match Torque To Grade
Use the manufacturer torque chart — never carry over carbon-steel values
Apply Anti-Seize Paste
Nickel-based anti-seize on the mating thread stops cold-welding on tightening
Avoid Dissimilar-Metal Contact
Isolate from reactive metals in the joint to prevent galvanic attack
Check Flatness First
Reject any washer showing warp or burrs before it goes under load
Tighten Slow & Steady
Controlled hand or calibrated-wrench torque — avoid impact guns
Store Moisture-Free
Keep in sealed poly packing until installation to protect the finish
Inconel 625 Washer Dimension Chart
Being an experienced Inconel 625 Washers Manufacturer in India, we hold precise OD, ID and thickness charts ready for instant reference
| Bolt Size | Inner Dia (ID) | Thickness | Outer Dia (OD) |
|---|---|---|---|
| M10 | 10.5 | 2.0 | 20.0 |
| M8 | 8.4 | 1.6 | 16.0 |
| M16 | 17.0 | 3.0 | 30.0 |
| M12 | 13.0 | 2.5 | 24.0 |
| M24 | 25.0 | 4.0 | 44.0 |
| M6 | 6.4 | 1.6 | 12.0 |
| M20 | 21.0 | 3.0 | 37.0 |
| M36 | 37.0 | 5.0 | 66.0 |
| M30 | 31.0 | 4.0 | 56.0 |
ASTM B564 Conical Washer Weight
| Bolt Size | Weight (Kg / 100 Nos) |
|---|---|
| M10 | 0.38 |
| M8 | 0.20 |
| M16 | 1.22 |
| M12 | 0.67 |
| M24 | 3.48 |
| M6 | 0.11 |
| M20 | 1.85 |
| M36 | 9.90 |
| M30 | 5.77 |
How To Avoid Galling In AMS 5666 Square Washers?
Why It Happens
Work-hardening under friction lets mating nickel surfaces cold-weld together
Cause
Lubricate The Joint
Nickel or copper-based anti-seize rated above 1000°C on every install
Fix
Slow The Tightening Speed
Heat from fast spin-up accelerates galling — keep RPM low
Fix
Limit Re-Torquing
Replace the washer after repeated removal instead of reusing it
Fix
Specify A Ground Finish
Smoother, precision-ground faces cut friction versus mill finish
Fix
Inspect Before Reuse
Discard any washer showing scoring, pickup or surface transfer
Fix
UNS N06625 Sealing Washer HSN Code
HSN Chapter
7508
Nickel & nickel-alloy articles
Flat / Sealing Washer
7508 90 90
Other articles of nickel alloy
Spring / Lock Washer
7508 90 90
Other articles of nickel alloy
GST Rate
18%
Standard rate on nickel-alloy washers
Inconel 625 Washer Test Certificates
Mill Test Certificate 3.1
Every Inconel 625 washer dispatch carries an EN 10204 3.1 Mill Test Certificate, cross-checked against ASTM B564 chemistry and AMS 5666 mechanical limits, tied back to the original heat number.
Material Testing On Every Batch
PMI Testing
Positive Material Identification confirms nickel, chromium & molybdenum content on every lot
NACE / Sour Gas Test
Sulphide stress-cracking resistance verified per NACE MR0175
Dimensional Check
OD, ID & thickness verified against drawing tolerance
Hardness Test
Confirms annealed condition meets ASTM B564 limits
Visual & Surface Check
Screened for burrs, pitting & finish defects
Third-Party Inspection
TPI available on request for large export orders
Documentation With Every Dispatch
NABL Lab Report
Independent chemistry & mechanical test results
On Request
Packing List
Itemised piece count, weight & carton breakup
Every Order
Certificate Of Origin
For customs clearance & import duty processing
Export Orders
Commercial Invoice
PO-matched invoice with HSN & GST breakup
Every Order
Inconel 625 Washer Export Packaging
Poly Bag & Carton
Standard retail-ready packing for small orders
Wooden Pallet Box
For bulk quantities and project cargo
Export Vacuum Pack
Moisture-sealed for long-transit sea freight
Custom Labelling
PO number and heat number marked per buyer requirement
Have A High-Heat Or Sour-Gas Joint To Solve?Tell us the environment — we recommend grade, finish & testing.
Application Of ASTM B564 Conical Washer
Aero-Engine Ducting & Exhaust
LNG & Cryogenic Piping
Subsea & Offshore Manifolds
Sour Gas / NACE Wellhead Equipment
Flue Gas Desulfurization (FGD)
Nuclear Reactor Components
Chemical Processing Reactors
Marine Propulsion Systems
Inconel 625 Washers Delivered Weekly to the Following Countries
| Export to | Countries | Continent | Ports | Shipping time |
|---|---|---|---|---|
 |
Brazil | South America | Paranaguá | 45-60 |
 |
Mexico | North America | Manzanillo | 45 |
 |
Singapore | Asia | Pasir Panjang | 8 |
Monthly Delivery of UNS N06625 Spring Washer to Below Countries
| Export to | Countries | Continent | Ports | Shipping time |
|---|---|---|---|---|
 |
Kenya | Africa | Kisumu | 19 |
 |
South Africa | Africa | Richards Bay | 25-30 |
Frequently Asked Questions
Is an Inconel 625 washer magnetic?
No. In the annealed condition its nickel matrix is non-magnetic.
Can Inconel 625 washers handle cryogenic service?
Yes. The alloy stays ductile from sub-zero LNG temperatures up to 982°C without embrittlement.
What is the minimum order quantity?
Ganpat Industrial supplies from small trial lots to full container loads — share size and quantity for a factory price.
Our Wide Clientele in Following Locations
| Morocco | Houston | Gabon | Tunisia | Kenya | Dubai |
|---|---|---|---|---|---|
| Saudi Arabia | Al-khobar | Dammam | Al Jubail | Riyadh | UAE |
| Angola | Zambia | Egypt | Tanzania | Ethiopia | Ghana |
| New South Wales | California | Texas | Carolina | Indiana | Algeria |
| Abu Dhabi | Mozambique | Nigeria | Oman | South Africa | USA |
6 Reasons to choose Ganpat Industrial Corporation
- Distributor of Heat Exchanger parts and Alloys for High Temperature applications.
- Stockholder and importer of Ferrous and non ferrous metals.
- Wide stock of prime quality austenitic and Ferritic Stainless Steel for Extreme pressure environment.
- Marine grade steel at lowest price in Mumbai.
- Compare Price per KG in India and China.
- Offer Resale price to local suppliers, traders and wholesalers in UAE, Saudi Arabia, Egypt, and USA