Why Global Industrial Buyers Trust Ganpat Industrial for Incoloy 925 Washers?
Age-Hardened, Not Just Annealed
Every batch precipitation-hardened to true ASTM B805 strength limits
One RFQ, Every Washer Form
Flat • Spring • Lock • Sealing — all under a single mill-traceable PO
NACE MR0175 Sour-Service Ready
Hardness controlled & documented for H₂S well-head duty
Heat-Traceable Every Coil
PMI, hardness & dimensional records held against your PO number
Fast, Costed Quote
Drawing-based pricing returned within 24 working hours
Incoloy 925 Washers Technicalities
- 1Forms: Flat, Spring, Conical, Sealing, Lock, Square, Punched, Star, Slotted
- 2Size Range: M3 to M36 • OD 7 mm to 66 mm
- 3Designation: UNS N09925 • Incoloy Alloy 925 • ASTM B805 925
- 4Governing Specs: ASTM B805, ASME SB-805, NACE MR0175, ISO 15156
- 5Condition: Solution Annealed & Age Hardened (1350–1380°F)
- 6Quality Assurance: PMI Tested & MTC (EN 10204 3.1) Certified
Or call our Mumbai office: +91 22 6743 7134 • Drawing-based quotes dispatched within a day
Incoloy 925 Washers are designed for applications where high strength and corrosion resistance are critical. Enhanced with titanium and aluminium precipitation hardening, they offer greater clamp performance than Incoloy 825 while resisting sour crude, seawater, and harsh chemical environments. Ganpat Industrial supplies ASTM B805-compliant UNS N09925 Washers with mill certificates and heat traceability for demanding oilfield, subsea, and process plant applications across India and Middle East.
Mumbai · Incoloy 925 Washers Manufacturer & Exporter
UNS N09925 Lock Washers Manufactured For Excellent Performance
Ganpat Industrial supplies Incoloy Alloy 925 Washers with superior corrosion resistance and high strength for down-hole tooling, subsea flanges, and chemical plant applications across India, UAE, and Middle East.
- ✓ISO 9001:2015
- ✓NACE MR0175 / ISO 15156
- ✓PED 2014/68/EU
- ✓ASME B&PV Code Case 2218
- ✓Petrofac Approved
Alloy 925 Flat Washer Manufacturer in India With Custom Sizes At Competitive Rates
Incoloy 925 Washers Specification
Incoloy Alloy 925 Conical Washer Material
- UNS N09925
- Incoloy Alloy 925
- ASTM B805 925
- NACE MR0175 Grade
Incoloy 925 Sealing Washer Size Range
- ID: M3 – M36
- OD: 7 – 66 mm
- Thickness: 0.5 – 5 mm
- Custom sizes on drawing
Alloy 925 Flat Washer Testing
- PMI Testing
- Rockwell C Hardness Check
- Dimensional Check
- Third-Party Inspection
925 Incoloy Lock Washer Finish
- Passivated (ASTM A967)
- Bright Machined
- Age-Hardened Skin Finish
- Natural Mill Finish
ASTM B805 925 Spring Washer Documentation
- Mill Test Certificate 3.1
- NABL Lab Report
- Packing List
- Certificate Of Origin
Incoloy Alloy 925 Punched Washer Origin
- Indian Origin
- US Mill Origin
- European Origin
- Heat-Number Traceable
Size Chart of Alloy 925 Flat Washer
Get Incoloy 925 Washers Supplier in India offering custom sizes at factory prices.
| Size | Inside Diameter | Outside Diameter | Thickness |
|---|---|---|---|
| 2 | 3/32″ | 1/4″ | .020″ |
| 1-5/8 | 1-3/4″ | 3-3/4″ | 3/16″ |
| 1-1/8 | 1-3/16″ | 2-1/4″ | 9/64″ |
| 4 | 1/8″ | 5/16″ | 1/32″ |
| 1-3/4 | 1-7/8″ | 4″ | 3/16″ |
| 8 | 3/16″ | 7/16″ | 3/64″ |
| 1-1/2 | 1-7/16″ | 3″ | 3/16″ |
| 10 | 7/32″ | 1/2″ | 3/64″ |
| 1/4 | 9/32″ | 5/8″ | 1/16″ |
| 6 | 5/32″ | 3/8″ | 3/64″ |
| 3/8 | 13/32″ | 13/16″ | 1/16″ |
| 7/16 | 15/32″ | 59/64″ | 1/16″ |
| 1/2 | 17/32″ | 1-1/16″ | 3/32″ |
| 9/16 | 19/32″ | 1-3/16″ | 3/32″ |
| 5/8 | 21/32″ | 1-5/16″ | 3/32″ |
| 5/16 | 11/32″ | 11/16″ | 1/16″ |
| 1″ | 1-1/16″ | 2″ | 9/64″ |
| 7/8 | 15/16″ | 1-3/4″ | 9/64″ |
| 1-1/4 | 1-5/16″ | 2-1/2″ | 5/32″ |
| 3/4 | 13/16″ | 1-1/2″ | 9/64″ |
Need Age-Hardened Incoloy 925 Washers On A Fixed Drawing?Share size, quantity & condition – get MTC 3.1 backed price in 24 hours.
Offer ASTM B805 Incoloy Split 925 Washers With Key Advantages And Reliable Performance
Key Advantages of ASTM B805 Incoloy 925 Split Washers
Durability
Resists corrosion, wear, and harsh operating conditions
High Strength
Provides excellent load capacity with age-hardened properties
Long Service Life
Ensures reliable performance in demanding applications
Excellent Weldability
Supports easy fabrication with consistent weld performance
Various Types of 925 Incoloy Washers

Incoloy 925 Flat Washer
ISO 7089

ASTM B805 925 Star Washer
Toothed Lock

Incoloy Alloy 925 Conical Washer
DIN 6796

925 Incoloy Sealing Washer
Bonded Seal

Incoloy UNS N09925 Lock Washer
DIN 127

Alloy 925 Spring Washer
DIN 137

ASTM B805 925 Machine Washer
Custom Drawing

925 Incoloy Spit Washer
Fine Blanked
Weight Chart of Incoloy UNS N09925 Spring Washer
| NOM SIZE MM | Inner Dia (d) Basic Tol (+) | Outer Dia (d1) Max | WIDTH (b) Basic Tol (+ or -) | THICKNESS (S) Basic Tol (+ or -) | Weight per 1000 in Kgs | |||
|---|---|---|---|---|---|---|---|---|
| 3 | 3.1 | 0.3 | 6.2 | 1.3 | 0.1 | 0.8 | 0.1 | 0.11 |
| 4 | 4.1 | 0.3 | 7.6 | 1.5 | 0.1 | 0.9 | 0.1 | 0.18 |
| 16 | 16.2 | 0.8 | 27.4 | 5 | 0.2 | 3.5 | 0.2 | 8.91 |
| 5 | 5.1 | 0.3 | 9.2 | 1.8 | 0.1 | 1.2 | 0.1 | 0.36 |
| 27 | 27.5 | 1 | 43 | 7 | 0.25 | 5 | 0.2 | 28.70 |
| 6 | 6.1 | 0.4 | 11.8 | 2.5 | 0.15 | 1.6 | 0.1 | 0.83 |
| 22 | 22.5 | 1 | 35.9 | 6 | 0.2 | 4 | 0.2 | 16.50 |
| 10 | 10.2 | 0.5 | 18.1 | 3.5 | 0.2 | 2.2 | 0.15 | 2.53 |
| 12 | 12.2 | 0.5 | 21.1 | 4 | 0.2 | 2.5 | 0.15 | 3.82 |
| 30 | 30.5 | 1.2 | 48.2 | 8 | 0.25 | 6 | 0.2 | 44.30 |
| 18 | 18.2 | 0.8 | 29.4 | 5 | 0.2 | 3.5 | 0.2 | 9.73 |
| 20 | 20.2 | 1 | 33.6 | 6 | 0.2 | 4 | 0.2 | 15.20 |
| 14 | 14.2 | 0.5 | 24.1 | 4.5 | 0.2 | 3 | 0.15 | 6.01 |
| 8 | 8.1 | 0.4 | 14.8 | 3 | 0.15 | 2 | 0.1 | 1.60 |
| 24 | 24.5 | 1 | 40 | 7 | 0.25 | 5 | 0.2 | 26.20 |
Applications of Incoloy Alloy 925 Conical Washer
Find Incoloy 925 Washers Supplier In India offering versatile applications for industrial needs.
Down-Hole & Well-Head Components
Subsea & Offshore Production Systems
High-Pressure Valve & Choke Assemblies
Marine & Pump Shaft Hardware
Sulfuric & Phosphoric Acid Process Plants
Desalination & Seawater Injection Systems
High-Strength Structural Fastening
Critical Bolting For Aerospace & Turbines
Weekly Delivery of 925 Incoloy Spit Washer to Below Countries
| Export to | Continent | Shipping time |
|---|---|---|
![]() Netherlands |
Europe | 30 Days |
![]() Kuwait |
Asia | 10 Days |
![]() Egypt |
Africa | 18 Days |
![]() Qatar |
Asia | 7 Days |
Buying For A Sour-Service or Subsea Bolted Joint?Send your BOQ – NACE-qualified stock, MTC 3.1, factory price.
Chemical Composition of 925 Incoloy Sealing Washer
NickelNi
42.0–46.0%
ChromiumCr
19.5–22.5%
MolybdenumMo
2.5–3.5%
CopperCu
1.5–3.0%
TitaniumTi
1.9–2.4%
AluminiumAl
0.1–0.5%
IronFe
22% Min (Balance)
Mechanical Properties of ASTM B805 925 Star Washer
Tensile Strength
965 MPa Min
ASTM B805 Age-Hardened
Yield Strength
724 MPa Min
0.2% Proof Stress
Hardness
26–38 HRC
Sour-Service Controlled
Elongation
18% Min
In 4D Gauge Length
Alloy 925 Machine Washer Equivalent
American Standard
- UNS N09925
- ASTM B805 / B637
- ASME SB-805
International Reference
- Incoloy Alloy 925
- UNS N09925 Grade
- Ni-Cr-Fe Alloy 925
Industry Specification
- NACE MR0175 / ISO 15156
- Special Metals INCOLOY® 925
- Age-Hardened Nickel Alloy
Testing Methods of Incoloy UNS N09925 Punched Washer
Check Incoloy 925 Washers Manufacturer in India providing verified testing methods with quality assurance.
PMI Testing
Positive Material Identification on every heat
Dimensional Inspection
Bore, socket depth & wall checked per lot
Hardness Testing
Verifies hardness values to meet material specifications.
Weekly Delivery of Incoloy UNS N09925 Lock Washer to Below Countries
| Export to | Continent | Shipping Time |
|---|---|---|
![]() Italy |
Europe | 30 Days |
![]() Saudi Arabia |
Asia | 7 Days |
![]() USA |
North America | 40-60 Days |
![]() UAE |
Asia | 5 Days |
Frequently Asked Questions
Is Incoloy 925 Stronger Than Incoloy 825?
Yes — age hardening lifts minimum tensile strength from about 586 MPa to 965 MPa
Is Incoloy 925 Suitable For Sour Gas Wells?
Yes, when hardness is controlled to 38 HRC or below per NACE MR0175
Can Incoloy 925 Washers Be Custom Punched On Drawing?
Yes, custom ID, OD, thickness & slot patterns are made against buyer drawing
Weekly Shipment to Below Locations
| Houston | Kenya | Gabon | Morocco | Dubai | Tunisia |
|---|---|---|---|---|---|
| Mozambique | South Africa | Nigeria | Abu Dhabi | USA | Oman |
| California | Indiana | Texas | New South Wales | Algeria | Carolina |
| Zambia | Ethiopia | Egypt | Angola | Ghana | Tanzania |
| Al-khobar | Riyadh | Dammam | Saudi Arabia | UAE | Al Jubail |









