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Grade 5 Titanium Flat and Lock Washers

Ti-6Al-4V flat and lock washers for lightweight, high-strength bolted joints. Washer type, inside and outside diameter, thickness, hardness or spring requirements, finish and inspection are supplied by standard or drawing.

Material: Grade 5 / Ti-6Al-4V / UNS R56400
Types: Flat, split lock or drawing-specific
Dimensions: Metric, inch or drawing
Documents: MTC and dimensional inspection

Product Detail

Product Introduction

Grade 5 washers are specified as part of a complete bolted joint rather than as interchangeable accessories. Flat washers distribute bearing load; lock-washer configurations require validation against preload, fatigue, relaxation, surface damage and reuse requirements.

Product Specifications

Product	Grade 5 Titanium Flat and Lock Washers	Material	Titanium Grade 5 (Ti-6Al-4V, UNS R56400)
Product Form	Flat, split-lock or drawing-specific washer	Typical Inquiry Range	For M2 to M36 fasteners in typical inquiries; custom ID, OD and thickness by review
Dimensional References	ISO 7089/7090, DIN 125, ASME B18.21 or approved drawing	Threads / Dimensions	Metric coarse or fine, UNC, UNF or drawing-specific as applicable
Surface	Machined and cleaned; lubricant, anti-galling treatment or coating by agreement	Documents	MTC, heat/lot traceability and dimensional inspection report
Inspection	Dimensions, thread gauging, surface and agreed functional or mechanical tests	Supply Basis	Approved purchase order, invoked standard and drawing

Typical inquiry ranges are not a stock guarantee. Final manufacturability, tolerances and test requirements are confirmed against the complete RFQ.

Selection and Configuration

Flat washers: Define inside diameter, outside diameter, thickness, bearing area and mating-surface requirements.
Lock washers: Specify the exact locking form and validate retained preload, surface marking and reuse policy.
Joint compatibility: Confirm bolt and nut material, hardness relationship, lubrication, galvanic exposure and installation method.

Standards and ordering definition: ISO 7089/7090, DIN 125, ASME B18.21 and other references may define washer geometry when expressly invoked. Grade 5 material condition, hardness or spring-performance requirements and acceptance tests must be specified separately.

Send a drawing or complete fastener definition
Include dimensions, quantity, mating parts, service conditions, finish and inspection requirements.

Request a Quotation

Chemical Composition – Titanium Grade 5

Weight percent. Values are material limits; titanium is the balance.

Al	V	Fe max	O max	C max	N max	H max	Residual each / total	Ti
5.50–6.75	3.50–4.50	0.40	0.20	0.08	0.05	0.015	0.10 / 0.40	Balance

Mechanical Properties – Grade 5 Material Reference

Property	Annealed Grade 5 Material Reference Minimum
Ultimate tensile strength	895 MPa (130 ksi)
0.2% yield strength	828 MPa (120 ksi)
Elongation	10%
Reduction of area	25%

Material values do not automatically establish finished-fastener loadability. Finished-part acceptance depends on geometry, manufacturing route, condition and the expressly invoked fastener specification or drawing.

Typical Physical Properties

Property	Typical Value
Density	4.43 g/cm³
Elastic modulus	Approximately 114 GPa
Poisson ratio	Approximately 0.34
Thermal conductivity	Approximately 6.7 W/m·K
Coefficient of thermal expansion	Approximately 8.6 µm/m·K
Melting range	Approximately 1604–1660°C

Physical values are typical engineering references and are not inspection acceptance limits.

Certificates & Inspection Records

SAKY ALLOY quality management system certificate

Services We Can Provide

Drawing ReviewGeometry, thread, tolerances and mating-component review.

Custom ManufacturingMetric, inch and drawing-specific production subject to review.

InspectionDimensional checks, thread gauging and agreed functional testing.

Surface OptionsCleaning, identification, lubricant or coating by agreement.

TraceabilityMTC, heat/lot records and inspection documentation.

Export SupportProtected packing, labeling and shipping documents.

Product Packaging

Grade 5 Titanium Flat and Lock Washers are separated by size and lot, protected against thread and surface damage, and labeled with grade, dimensions, quantity and traceability reference. Inner bags, cartons and export cases are selected according to product geometry, quantity and shipping method.

Application Scenarios

Chemical Processing

Corrosion-resistant equipment joints selected against the complete process environment.

Wind turbines and solar panels at a renewable energy site

Power & Energy

Lightweight engineered assemblies requiring controlled dimensions and traceability.

Marine & Shipbuilding

Corrosion-resistant joints subject to galvanic, preload and service-condition review.

FAQ

What information is required to quote Grade 5 Titanium Flat and Lock Washers?

Provide the titanium grade, product form, dimensional standard or drawing, thread or critical dimensions, quantity, surface treatment, mating parts, service conditions and required inspection documents.

Which standards apply to Grade 5 Titanium Flat and Lock Washers?

ISO 7089/7090, DIN 125, ASME B18.21 and other references may define washer geometry when expressly invoked. Grade 5 material condition, hardness or spring-performance requirements and acceptance tests must be specified separately.

How are Grade 5 Titanium Flat and Lock Washers inspected?

Available controls include MTC review, inside/outside diameter and thickness measurement, flatness or form inspection, visual examination, hardness or performance tests when specified and heat/lot traceability.

Grade 5 Titanium Flat and Lock Washers