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Inconel 600 washers are precision-engineered fastening components manufactured from a nickel-chromium alloy known for exceptional resistance to oxidation, carburization, and chloride-induced corrosion. These washers are widely used in critical assemblies where elevated temperatures and aggressive chemical environments demand long-term material stability. Designed to meet standards such as ASTM B166 and ASME specifications, they ensure consistent load distribution and joint integrity in demanding systems.
Industries such as petrochemical processing, aerospace, marine engineering, and power generation rely on Inconel 600 washers to maintain performance under thermal cycling and corrosive exposure. KK Fasteners supplies these washers with strict dimensional tolerances and material traceability, supporting global projects that require reliability across extreme operating conditions.
| Parameter | Details |
|---|---|
| Material | Nickel-Chromium Alloy (Inconel 600) |
| Grade | UNS N06600 |
| Standards | ASTM B166, ASME SB166, DIN 125, ISO 7089 |
| Size Range | M3 to M100 / 1/8" to 4" |
| Types | Flat Washers, Spring Washers, Plain Washers, Custom Machined |
| Thread Compatibility | Metric, UNC, UNF, BSW |
| Surface Finish | Plain, Pickled, Passivated, Polished |
| Hardness | 150–200 HB (Typical) |
| Tensile Strength | ~550 MPa |
| Temperature Resistance | Up to 1093°C (2000°F) |
| Grade | C | Mn | Si | Fe | S | Cr | Cu | Ni | |
| 600 | min. | – | – | – | 6.0 | – | 14.0 | – | 72.0 |
| max. | 0.15 | 1.0 | 0.5 | 10.0 | 0.015 | 17.0 | 0.5 | – | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 600 | Psi – 95,000 , MPa -655 | Psi – 45,000 , MPa – 310 | 40 | – | – |
| Grade | UNS No | Old British | Euronorm | GOST | Japanese JIS | ||
| BS | En | No | AFNOR | ||||
| Inconel 600 | N06600 | NA 13 | NiCr15Fe | 2.4816 | NC15FE11M | МНЖМц 28-2,5-1,5 | NCF 600 |
Bolt Size
|
USS
|
SAE
|
||||
OD (in.)
|
ID (in.)
|
Thickness
|
OD (in.)
|
ID (in.)
|
Thickness
|
|
1/8 (#6)
|
-
|
-
|
-
|
0.375
|
0.156
|
.036/.065
|
5/32 (#8)
|
-
|
-
|
-
|
0.438
|
0.188
|
.036/.065
|
3/16 (#10)
|
0.560
|
0.250
|
.036/.065
|
0.500
|
0.220
|
.036/.065
|
7/32 (#12)
|
-
|
-
|
-
|
0.562
|
0.250
|
.051/.080
|
1/4 (#14)
|
0.734
|
0.312
|
.051/.080
|
0.625
|
0.281
|
.051/.080
|
5/16
|
0.875
|
0.375
|
.064/.104
|
0.688
|
0.344
|
.051/.080
|
3/8
|
1.000
|
0.438
|
.064/.104
|
0.812
|
0.406
|
.051/.080
|
7/16
|
1.250
|
0.500
|
.064/.104
|
0.922
|
0.469
|
.051/.080
|
1/2
|
1.375
|
0.562
|
.086/.132
|
1.062
|
0.531
|
.074/.121
|
9/16
|
1.469
|
0.625
|
.086/.132
|
1.156
|
0.594
|
.074/.121
|
5/8
|
1.750
|
0.688
|
.108/.160
|
1.312
|
0.656
|
.074/.121
|
3/4
|
2.000
|
0.812
|
.122/.177
|
1.469
|
0.812
|
.108/.160
|
7/8
|
2.250
|
0.938
|
.136/.192
|
1.750
|
0.938
|
.108/.160
|
1
|
2.500
|
1.062
|
.136/.192
|
2.000
|
1.062
|
.108/.160
|
1 1/8
|
2.750
|
1.250
|
.136/.192
|
2.250
|
1.250
|
.108/.160
|
1 1/4
|
3.000
|
1.375
|
.136/.192
|
2.500
|
1.375
|
.136/.192
|
1 3/8
|
3.250
|
1.500
|
.153/.213
|
2.750
|
1.500
|
.136/.213
|
1 1/2
|
3.500
|
1.625
|
.153/.213
|
3.000
|
1.625
|
.153/.213
|
1 5/8
|
3.750
|
1.750
|
.153/.213
|
-
|
-
|
-
|
1 3/4
|
4.000
|
1.875
|
.153/.213
|
-
|
-
|
-
|
1 7/8
|
4.250
|
2.000
|
.153/.213
|
-
|
-
|
-
|
2
|
4.500
|
2.125
|
.153/.213
|
-
|
-
|
-
|
2 1/4
|
4.750
|
2.375
|
.320/.248
|
-
|
-
|
-
|
2 1/2
|
5.000
|
2.625
|
.210/.280
|
-
|
-
|
-
|
2 3/4
|
5.250
|
2.875
|
.228/.410S
|
-
|
-
|
-
|
3
|
5.500
|
3.125
|
.249/.327
|
-
|
-
|
-
|
Size |
USS |
SAE |
||||
|---|---|---|---|---|---|---|
Inside Diameter (A) |
Outside Diameter (B) |
Thickness (C) |
Inside Diameter (A) |
Outside Diameter (B) |
Thickness (C) |
|
#2 |
- |
- |
- |
3/32" |
1/4" |
0.020" |
#4 |
- |
- |
- |
1/8" |
5/16" |
0.032" |
#6 |
- |
- |
- |
5/32" |
3/8" |
0.049" |
#8 |
- |
- |
- |
3/16" |
7/16" |
0.049" |
#10 |
- |
- |
- |
7/32" |
1/2" |
0.049" |
#12 |
- |
- |
- |
1/4" |
9/16" |
0.065" |
1/4" |
5/16" |
0.734" |
0.065" |
9/32" |
5/8" |
0.065" |
5/16" |
3/8" |
7/8" |
0.083" |
11/32" |
11/16" |
0.065" |
3/8" |
7/16" |
1" |
0.083" |
13/32" |
13/16" |
0.065" |
7/16" |
1/2" |
1-1/4" |
0.083" |
15/32" |
15/16" |
0.065" |
1/2" |
9/16" |
1-3/8" |
0.109" |
17/32" |
1-1/16" |
0.095" |
9/16" |
5/8" |
1-15/32" |
0.109" |
19/32" |
1-5/32" |
0.095" |
5/8" |
11/16" |
1-3/4" |
0.134" |
21/32" |
1-5/16" |
0.095" |
3/4" |
13/16" |
2" |
0.148" |
13/16" |
1-15/32" |
0.134" |
7/8" |
15/16" |
2-1/4" |
0.165" |
15/16" |
1-3/4" |
0.134" |
1" |
1-1/16" |
2-1/2" |
0.165" |
1-1/16" |
2" |
0.134" |
1-1/8" |
1-1/4" |
2-3/4" |
0.165" |
- |
- |
- |
1-1/4" |
1-3/8" |
3" |
0.165" |
- |
- |
- |
1-3/8" |
1-1/2" |
3-1/4" |
0.180" |
- |
- |
- |
1-1/2" |
1-5/8" |
3-1/2" |
0.180" |
- |
- |
- |
1-5/8" |
1-3/4" |
3-3/4" |
0.180" |
- |
- |
- |
1-3/4" |
1-7/8" |
4" |
0.180" |
- |
- |
- |
2" |
2-1/8" |
4-1/2" |
0.213" |
- |
- |
- |
Inconel 600 washers are used in applications where high temperature resistance and corrosion protection are critical to maintaining joint integrity.
Inconel 600 washers are typically produced using precision stamping or CNC machining, depending on dimensional requirements and thickness tolerances. The manufacturing process includes solution annealing to optimize mechanical properties and corrosion resistance.
Quality assurance involves dimensional inspection using calibrated gauges, hardness testing, and surface finish verification. Each batch undergoes material composition testing to ensure compliance with ASTM standards. KK Fasteners follows documented inspection procedures aligned with ISO 9001 standards, ensuring full traceability from raw material to finished product.
This systematic approach ensures that every washer meets stringent industrial requirements for performance and reliability.
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Inconel 600 washers are nickel-chromium alloy fastening components designed for high-temperature and corrosive environments. They are used to distribute load, reduce surface wear, and maintain joint integrity in critical industrial assemblies such as turbines, reactors, and chemical processing equipment.
Yes, Inconel 600 washers are specifically engineered for extreme heat conditions. They can perform continuously at temperatures up to approximately 1093°C while maintaining mechanical stability and resistance to oxidation and thermal fatigue.
These washers are commonly manufactured in compliance with ASTM B166 and ASME SB166 material standards. Dimensional compatibility is typically aligned with DIN 125, ISO 7089, and other international fastening standards used in global engineering applications.
Selection depends on load requirements, operating temperature, and environmental exposure. Flat washers are preferred for load distribution, while spring washers are used in vibration-heavy systems. Compatibility with Inconel bolts or other nickel alloys is also important for performance consistency.
A reliable supplier should provide certified materials, full traceability, and compliance with international standards. Buyers should also check for inspection reports, export experience, and quality certifications. Companies like KK Fasteners support global procurement with tested and traceable products.
Inconel 600 washers play a critical role in maintaining joint integrity in high-temperature and corrosive environments. With controlled manufacturing processes and traceable material sourcing, KK Fasteners ensures consistent quality for industrial applications worldwide. To discuss specifications or request a quotation, connect with the engineering team for application-specific recommendations and supply details.
