Phone: +86 15332330113 Email: info@ruipros.com PRECISION CRAFTED TO MEET FUTURE DEMANDS Xi'an, Shaanxi, China

English

English

Learn everything about ASTM B348 titanium bars, including specifications, grades, mechanical properties, applications, and how to choose a reliable supplier.

mia Chang

6/13/20263 min read

ASTM B348 Titanium Bar: Specification, Grades and Applications Guide 2026

Introduction

ASTM B348 is one of the most widely recognized standards for titanium and titanium alloy bars and billets.

Whether you are sourcing titanium bars for aerospace, medical, marine, chemical processing, or CNC machining applications, understanding ASTM B348 is essential to ensuring material quality and compliance.

This guide explains ASTM B348 specifications, available grades, mechanical properties, applications, and purchasing considerations.

What Is ASTM B348?

ASTM B348 is an international standard published by ASTM International.

The standard covers:

Titanium bars
Titanium alloy bars
Titanium billets

used in industrial and commercial applications.

ASTM B348 defines material composition, mechanical properties, dimensional tolerances, testing requirements, and inspection procedures.

The purpose of the standard is to ensure consistency and quality across titanium products supplied worldwide.

Why Is ASTM B348 Important?

For buyers and engineers, ASTM B348 provides confidence that titanium materials meet internationally accepted quality requirements.

Benefits include:

✔ Consistent material properties

✔ Reliable mechanical performance

✔ Global acceptance

✔ Improved traceability

✔ Easier supplier qualification

Most aerospace, medical, and industrial projects require titanium bars manufactured according to ASTM B348.

Common ASTM B348 Titanium Grades

Several titanium grades are covered under ASTM B348, including Grade 2 Titanium Bar and Grade 5 Titanium Bar, which are among the most widely used materials in aerospace and industrial applications.

Grade 1 Titanium Bar

Grade 1 is the softest and most ductile commercially pure titanium grade.

Advantages:

Excellent corrosion resistance
Excellent formability
Easy welding

Applications:

Chemical processing
Heat exchangers
Marine equipment

Grade 2 Titanium Bar

Grade 2 is the most commonly used commercially pure titanium.

Advantages:

Good strength
Excellent corrosion resistance
Cost-effective

Applications:

Industrial equipment
Desalination systems
Offshore engineering

Grade 5 Titanium Bar (Ti-6Al-4V)

Grade 5 is the most popular titanium alloy.

Advantages:

High strength
Excellent fatigue resistance
Lightweight

Applications:

Aerospace structures
Medical implants
High-performance fasteners
CNC machined components

Grade 7 Titanium Bar

Grade 7 contains palladium, providing enhanced corrosion resistance.

Applications:

Chemical plants
Acid processing systems
Seawater environments

Grade 9 Titanium Bar

Grade 9 is known as Ti-3Al-2.5V.

Advantages:

Medium strength
Excellent weldability
Lightweight

Applications:

Bicycle frames
Sporting equipment
Aerospace tubing

ASTM B348 Material Requirements

ASTM B348 specifies strict quality requirements for titanium bars.

Manufacturers must ensure:

Chemical composition compliance
Mechanical property testing
Surface quality inspection
Dimensional accuracy verification
Traceability documentation

Every production batch should be supported by a Mill Test Certificate (MTC).

Mechanical Properties of ASTM B348 Titanium Bars

Mechanical properties vary depending on the titanium grade.

For example:

Grade 2 Titanium Bar

Tensile Strength: approximately 345 MPa
Yield Strength: approximately 275 MPa
Excellent corrosion resistance

Grade 5 Titanium Bar

Tensile Strength: approximately 895 MPa
Yield Strength: approximately 828 MPa
Outstanding strength-to-weight ratio

Grade 5 offers significantly higher strength, while Grade 2 provides superior corrosion resistance.

Applications of ASTM B348 Titanium Bars

ASTM B348 titanium bars supplied by a professional Titanium Bar Supplier are widely used across aerospace, medical, marine, and industrial applications.

Aerospace Industry

Applications include:

Aircraft structural components
Landing gear parts
Engine components

The lightweight nature of titanium helps reduce fuel consumption while maintaining strength.

Medical Industry

Applications include:

Orthopedic implants
Bone screws
Dental implants

Titanium's excellent biocompatibility makes it ideal for medical use.

Marine Industry

Applications include:

Offshore platforms
Shipbuilding components
Seawater systems

Titanium provides outstanding resistance to seawater corrosion.

Industrial Manufacturing

Applications include:

Fasteners
Valves
Pumps
Heat exchangers
CNC machined parts

How to Choose an ASTM B348 Titanium Bar Supplier

When sourcing titanium bars, buyers should consider the following factors:

Material Certification

Ensure the supplier can provide:

ASTM B348 certification
Mill Test Certificates
Material traceability reports

Manufacturing Capability

Choose suppliers with:

Precision machining services
Custom cutting capabilities
Large inventory availability

Export Experience

A reliable supplier should have experience exporting to:

United States
Germany
Canada
Australia
United Kingdom

Why Choose RuiPros ASTM B348 Titanium Bars?

RuiPros supplies a complete range of ASTM B348 titanium products including:

Grade 1 Titanium Bar
Grade 2 Titanium Bar
Grade 5 Titanium Bar
Grade 7 Titanium Bar
Grade 9 Titanium Bar

Our advantages include:

✔ Factory-direct pricing

✔ Full material certification

✔ OEM machining support

✔ Fast production lead times

✔ Global export experience

✔ Professional technical support

FAQ

What is ASTM B348?

ASTM B348 is an international standard covering titanium and titanium alloy bars and billets.

Which grade is most commonly used under ASTM B348?

Grade 2 and Grade 5 are the most commonly used grades because of their excellent balance of performance and availability.

Is ASTM B348 suitable for aerospace applications?

Yes. ASTM B348 Grade 5 titanium bars are widely used in aerospace structures and engine components.

Can ASTM B348 titanium bars be CNC machined?

Yes. Titanium bars manufactured to ASTM B348 are commonly used for precision Custom CNC Titanium Parts production and high-performance engineering components. and custom component production.