UNS R56400

Titanium Grade 5 Split lock washers

ASME B18.21.1

Titanium Grade 5 split washers need an elastic recovery requirement alongside higher strength than commercially pure titanium at low density. Section shape and final temper control compression behaviour; the assembly’s locking method is a separate design choice.

MOQ
100PCS
Samples · typical
~20 days
Production · typical
25–35 days
Heat treatment
Annealed

EN 10204 3.1 MTC + heat-number traceability

Upload drawing
Other alloysX-750718625A-286

Which standard is on your order?

Raw Material Specifications

Dimension Reference

Heat Treatment

Annealed

Annealing reduces working stresses and restores ductility, with atmosphere and surface control limiting contamination during heating.

What we can make in Titanium Grade 5

Split washer free-state axial offset

Free state

The open helical shape supplies initial spring travel as a screw or nut is tightened. Free height and section size determine how much travel is available before the washer becomes flat.

Split washer flattened between clamped faces

Clamped state

Once flattened, little spring travel remains to compensate for settling. For an assembly needing controlled preload travel, compare a disc spring; for a vibration-critical joint, select a locking method validated for that joint.

Form
Split helical ring
Key dimensions
Bore · Section · Free height
Assembly
Under nut or bolt head
Sizing
Metric · Inch
Final condition
Annealed
Inspection
Bore · Section width and thickness · Free height

Manufacturing route

Wire or profiled section is formed into the helical ring; the split, section and free height are controlled before final condition checks.

Heat treatment & final condition

Forming and thermal processing require contamination control. The final surface is cleaned before dimensional and material acceptance.

Working performance

The alloy’s elastic modulus and forming response require a dedicated load–deflection design. A steel spring rating cannot be carried over to the same-size reactive-metal disc or ring.

Where Titanium Grade 5 fits — and what matters

Orange welding robot beside a steel fabrication clamped to a workshop positioning table

Industrial Machinery & Automation

Machine frames and positioning fixtures

Titanium Grade 5 split lock washers fit under a bolt head or nut on machine frames and positioning fixtures when the assembly drawing calls for a helical washer. Compression and recovery belong to the washer specification. Alignment, operating cycles and replacement access define the working interface.

Section · free height · compressed condition
Industrial Machinery & Automation fasteners
White centrifugal pump with a bolted casing, black inlet hose and worn paint

Pumps, Valves & OEM

Actuator mounts and pump baseplates

Titanium Grade 5 split lock washers fit under a bolt head or nut on actuator mounts and pump baseplates when the assembly drawing calls for a helical washer. Compression and recovery belong to the washer specification. Repeated maintenance makes fit, engagement and access part of the component specification.

Section · free height · compressed condition
Pumps, Valves & OEM fasteners
Two yellow welding robots working beside a long steel beam fixture in a manufacturing cell

Automotive & EV Manufacturing Equipment

Assembly fixtures and test-rig frames

Titanium Grade 5 split lock washers fit under a bolt head or nut on assembly fixtures and test-rig frames when the assembly drawing calls for a helical washer. Compression and recovery belong to the washer specification. Repeated tooling changes require consistent seating and repeatable assembly dimensions.

Section · free height · compressed condition
Automotive & EV Manufacturing Equipment fasteners

Same split lock washer. Different material priorities.

Titanium Grade 5 material data
UNS N07750

Inconel X-750

Age-hardened strength and a choice of hot-service heat treatments.

Connection priority
Elastic recovery after compression
Spring treatment versus bolting treatment
X-750 has several heat-treatment routes. The route for retained spring force is selected around relaxation and working stress; a bolting strength requirement calls for its own specified condition. At the split edges and compressed contact faces, the relevant metal temperature can differ from the process or furnace set point.
Inconel X-750 split lock washers
UNS N07718

Inconel 718

Precipitation-hardened strength for compact, highly loaded connections.

Connection priority
Elastic recovery after compression
Strength after aging
Machine-stock properties and final aged properties describe different states. The final heat-treatment lot and mechanical results establish the strength available in the installed part. At the split edges and compressed contact faces, the relevant metal temperature can differ from the process or furnace set point.
Inconel 718 split lock washers
UNS N06625

Inconel 625

Solid-solution strength and resistance to aggressive process liquids.

Connection priority
Elastic recovery after compression
Annealed or solution-annealed 625
The delivery condition affects strength and high-temperature response. Keep the specified condition with the component’s mechanical acceptance; 718-style aging is not the strengthening route for 625. Include liquid retained at the split edges and compressed contact faces in the exposure description.
Inconel 625 split lock washers

From drawing to documented delivery

Heat treatment
Heat treatment
CNC machining
CNC machining
Rockwell hardness testing
Rockwell hardness testing
Wooden-crate packing
Wooden-crate packing
  1. 01Drawing & BOMForm, dimensions and quantity
  2. 02Material & formingGrade, heat and manufacturing route
  3. 03Final inspectionGeometry, threads and ordered tests
  4. 04Documents & dispatchLot records and identified packing

Order documents

Material identity
UNS R56400 · heat number · ordered condition
Final-part acceptance
Grade chemistry, surface condition and the ordered mechanical requirements. Load–deflection and permanent-set results for the specified spring geometry.
Dimensional record
Bore · Section width and thickness · Free height
Traceability
EN 10204 3.1 material certificate · production lot · identified packing

Build your Titanium Grade 5 split lock washer enquiry

QUOTE LIST ITEMTitanium Grade 5 split lock washers; UNS R56400; Helical split washer

Questions about Titanium Grade 5 split lock washers

Does corrosion-resistant stock automatically make a spring washer?

The stock needs a condition that provides the required elastic recovery. Record the final temper, compression behaviour and permanent set; a chemistry certificate alone does not describe the spring response.

Technical references & photo credits