Grade 2 Titanium Lock Nuts

Name: Grade 2 Titanium Lock Nuts
Brand: SAKY ALLOY

🇬🇧 ENGLISH

Commercially pure Grade 2 titanium prevailing-torque lock nuts for corrosion-resistant marine, chemical and industrial assemblies. Nylon-insert and all-metal configurations are supplied to the specified thread, dimensions and locking-performance requirements.

Material: Titanium Grade 2 / UNS R50400
Locking Type: Nylon insert or all-metal
Threads: Metric, UNC, UNF or drawing
Documents: MTC, traceability and inspection report

Product Detail

Product Introduction

Grade 2 lock nuts are selected when corrosion resistance and low mass are more important than the higher strength of Ti-6Al-4V. The locking feature must be matched to the operating temperature, chemical exposure, mating fastener and permitted installation cycles. Grade 2 (UNS R50400) is commercially pure titanium selected for corrosion resistance and useful ductility. The buyer should define the mating bolt, thread tolerance, locking style, service temperature, chemical exposure, lubricant and permitted reuse cycles.

Product Specifications

Product	Grade 2 Titanium Lock Nuts	Material	Commercially pure titanium Grade 2 / UNS R50400
Types	Nylon-insert or all-metal prevailing-torque hex lock nuts	Threads	Metric coarse/fine, UNC, UNF or drawing-specific
Dimensions	Approved drawing or expressly invoked dimensional reference	Size Range	Confirmed against thread, locking type, quantity and drawing at RFQ stage
Surface	Machined and cleaned; project-specific lubricant or coating by agreement	Inspection	Thread gauging, dimensions, locking feature and agreed prevailing-torque test
Documents	MTC, heat/lot traceability and dimensional inspection report	Third Party	Inspection can be arranged by agreement

Ordering note: ISO 7040 and ISO 7042 can be reviewed as dimensional or locking-form references when expressly specified, but they do not by themselves define Grade 2 titanium material or the finished nut acceptance plan. The purchase order and approved drawing control.

Have a drawing or specification?
Send the locking type, thread, quantity, service conditions and inspection requirements for review.

Request a Quotation

Chemical Composition — Titanium Grade 2 / UNS R50400

Maximum weight percent unless shown otherwise; titanium is the balance.

N	C	H	Fe	O	Residual, each	Residual, total	Ti
0.03	0.08	0.015	0.30	0.25	0.10	0.40	Balance

Mechanical Properties — Annealed Grade 2 Material Reference

Property	Guaranteed Minimum	Typical Value
Ultimate tensile strength	345 MPa (50 ksi)	485 MPa (70 ksi)
0.2% yield strength	275 MPa (40 ksi)	345 MPa (50 ksi)
Elongation	Per invoked material/product specification	28%
Reduction of area	Per invoked material/product specification	57%

Reference values for annealed Grade 2 material. Finished lock-nut proof load, prevailing torque and reuse performance depend on manufacturing route, locking feature, mating fastener and the acceptance specification agreed for the order.

Typical Physical Properties

Property	Typical Value	Use
Density	4.51 g/cm³	Mass estimation
Elastic modulus	Approximately 105 GPa	Joint stiffness reference
Thermal conductivity	Approximately 16.4 W/m·K	Thermal engineering reference
Thermal expansion	Approximately 8.6 µm/m·K	Near room temperature

Typical engineering references, not finished-lock-nut inspection acceptance limits.

Certificates & Inspection Records

SAKY ALLOY quality management system certificate

Services We Can Provide

Drawing ReviewThread, dimensions, locking geometry and mating fastener review.

Configuration SupportNylon-insert or all-metal selection based on temperature and exposure.

InspectionThread gauging, dimensional checks and agreed prevailing-torque testing.

Custom SupplyDrawing-specific sizes, finishes, lubrication and identification by agreement.

TraceabilityMTC, heat/lot records and inspection documentation matched to the order.

Export SupportQuantity-based packing, labeling and shipping-document coordination.

Product Packaging

Lock nuts are separated and protected to reduce thread and surface damage, then labeled by material, thread, quantity and traceability reference. Inner bags, cartons and export cases are selected according to size, quantity and shipping method.

Application Scenarios

Chemical Processing

Corrosion-resistant equipment, piping supports and assemblies where joint materials must suit the process environment.

Power and energy equipment application environment

Power & Energy Equipment

Auxiliary equipment and corrosion-exposed assemblies where the complete joint specification supports the service conditions.

Marine and shipbuilding application environment

Marine & Shipbuilding

Lightweight corrosion-resistant joints for marine equipment, enclosures and shipboard service components.

FAQ

Should I choose nylon-insert or all-metal Grade 2 titanium lock nuts?

Choose the locking form from the complete service conditions. Nylon-insert nuts can suit moderate temperatures when the insert is compatible with chemicals, moisture and maintenance life. All-metal lock nuts avoid a polymer temperature limit, but prevailing torque, relaxation and galling risk still require validation.

Can Grade 2 titanium lock nuts be reused?

Reuse should not be assumed. It is acceptable only when the governing specification or approved maintenance procedure permits additional installation cycles and the nut continues to meet the required subsequent-cycle prevailing-torque limits with the specified mating fastener.

What information is required to quote titanium lock nuts?

Provide Grade 2 or UNS R50400, locking type, thread and tolerance, dimensional standard or drawing, mating bolt, quantity, service temperature, chemical exposure, lubricant or coating, prevailing-torque test sequence and required certificates.

Grade 2 Titanium Lock Nuts