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Product Overview
Titanium Grade 2 washers are precision flat, spring, and custom-shaped washers manufactured from commercially pure titanium (UNS R50400), conforming to ASTM B265 and ASTM F67. Renowned for their exceptional corrosion resistance, low density, and high ductility, these washers are widely specified in critical assemblies where weight savings and immunity to chloride, seawater, and oxidizing acids are essential.
Titanium Grade 2 washers are non-magnetic, biocompatible, and maintain mechanical integrity from cryogenic temperatures up to 400°C. They are the preferred choice for bolted joints in chemical processing, marine, medical, and aerospace applications where stainless steel or nickel alloys may fail due to corrosion or weight constraints.
| Material | Titanium Grade 2 |
| UNS Number | R50400 |
| DIN Number | 3.7035 |
| Material Standard | ASTM B265 / ASTM F67 |
| Washer Standard (Metric) | DIN 125 / DIN 127 / DIN 9021 |
| Washer Standard (Inch) | ASME B18.22.1 |
| Type | Flat, Spring, Tab, Custom |
| Size Range | M3-M64 / 1/8"-2½" |
| Tensile Strength | 345 MPa (50 ksi) min |
| Yield Strength | 275 MPa (40 ksi) min |
| Hardness | Max 160 HV |
Complete the Fastener Set
Technical Data
| Size (M) | ID (mm) | OD (mm) | Thickness (mm) |
|---|---|---|---|
| M3 | 3.2 | 7 | 0.5 |
| M6 | 6.4 | 12 | 1.6 |
| M8 | 8.4 | 16 | 1.6 |
| M10 | 10.5 | 20 | 2.0 |
| M12 | 13.0 | 24 | 2.5 |
| M16 | 17.0 | 30 | 3.0 |
| M20 | 21.0 | 37 | 3.0 |
| M24 | 25.0 | 44 | 4.0 |
| M30 | 31.0 | 56 | 4.0 |
| M36 | 37.0 | 66 | 5.0 |
| M42 | 43.0 | 78 | 6.0 |
| M48 | 49.0 | 92 | 6.0 |
| M56 | 57.0 | 105 | 8.0 |
| M64 | 65.0 | 115 | 8.0 |
| Standard | Covers | Type |
|---|---|---|
| DIN 125 | Flat washers | Metric |
| DIN 127 | Spring lock washers | Metric |
| DIN 9021 | Large OD washers | Metric |
| ASME B18.22.1 | Plain & lock washers | Inch |
| ISO 7089 | Flat washers | Metric |
| ISO 7090 | Chamfered washers | Metric |
| Material Standard | Requirement |
|---|---|
| ASTM B265 | Plate/sheet - Gr 2 |
| ASTM F67 | Unalloyed Ti fasteners |
| EN 10204 3.1 | Mill test certificate |
| EN 10204 3.2 | TPI-witnessed MTC |
Material Chemistry
| Element | Composition (%) |
|---|---|
| Titanium (Ti) | Balance |
| Iron (Fe) | 0.30% max |
| Oxygen (O) | 0.25% max |
| Carbon (C) | 0.08% max |
| Nitrogen (N) | 0.03% max |
| Hydrogen (H) | 0.015% max |
| Other Elements (each) | 0.10% max |
| Other Elements (total) | 0.40% max |
Fastener Performance
| Bolt Size | Recommended Washer OD (mm) | Recommended Thickness (mm) |
|---|---|---|
| M6 | 12 | 1.6 |
| M8 | 16 | 1.6 |
| M10 | 20 | 2.0 |
| M12 | 24 | 2.5 |
| M16 | 30 | 3.0 |
| M20 | 37 | 3.0 |
| M24 | 44 | 4.0 |
| M30 | 56 | 4.0 |
| M36 | 66 | 5.0 |
Industry Applications
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