Titanium Grade 2 Specifications and Material Standards – UNS R50400, ASTM B348 and B265
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Table of Contents
- Introduction to Titanium Grade 2 Specifications
- Titanium Grade 2 Identification and Equivalent Designations
- ASTM Standards for Titanium Grade 2
- Titanium Grade 2 Chemical Composition
- Titanium Grade 2 Mechanical Properties
- Product Forms and Specification Requirements
- What to Check Before Purchasing Titanium Grade 2
- Frequently Asked Questions
- Titanium Grade 2 Enquiries at Manan Steel & Metals
1. Introduction to Titanium Grade 2 Specifications
Titanium Grade 2 is a commercially pure titanium grade used in industrial applications that require a combination of corrosion resistance, formability and moderate mechanical strength. It is commonly identified by UNS R50400 and material number 3.7035.
When purchasing titanium, confirming the grade alone is not enough. Buyers must also identify the required product form, applicable material standard, dimensions, tolerances, mechanical properties and documentation requirements.
For example, the specification for a titanium round bar is not necessarily the same as the specification for titanium sheet, plate, pipe or heat-exchanger tubing.
Manan Steel & Metals assists industrial buyers with enquiries for specialty metals. Providing complete technical details helps clarify the material requirement and supports a more accurate quotation process.
2. Titanium Grade 2 Identification and Equivalent Designations
The following designations are commonly associated with Titanium Grade 2.
| Identification | Designation |
|---|---|
| Commercial grade | Titanium Grade 2 |
| UNS number | R50400 |
| Material number | 3.7035 |
| Material category | Commercially pure titanium |
| Common description | Grade 2 titanium |
These identifiers help procurement teams communicate the intended material. However, an equivalent designation by itself does not confirm that two products meet the same delivery specification. Buyers should verify the material certificate and applicable standard.
3. ASTM Standards for Titanium Grade 2
ASTM standards define requirements for specific titanium product forms. The correct standard depends on the product being ordered and the requirements of the application.
| ASTM standard | Product scope | Procurement consideration |
|---|---|---|
| ASTM B348/B348M | Titanium and titanium alloy bars and billets | Confirm the required bar or billet form, grade and dimensions |
| ASTM B265 | Titanium and titanium alloy strip, sheet and plate | Specify thickness, width, length and delivery condition |
| ASTM B338 | Titanium and titanium alloy tubes for condensers and heat exchangers | Confirm tube dimensions and intended equipment specification |
| ASTM B861 | Titanium and titanium alloy seamless pipe | Confirm seamless pipe requirements and dimensions |
| ASTM B862 | Titanium and titanium alloy welded pipe | Confirm welded pipe requirements and dimensions |
Important: This table is a general guide, not a substitute for the standard itself. Check the current edition, grade coverage, product form and project requirements before placing an order. Do not assume that every listed standard is applicable to every Titanium Grade 2 product.
ASTM B348/B348M: Titanium Bars and Billets
ASTM B348/B348M is relevant when purchasing titanium bars and billets. Buyers should state the grade, required dimensions, length, tolerances, quantity and any applicable testing or documentation requirements.
If the application involves machined components, also confirm that the supplied product form and condition meet the engineering drawing.
ASTM B265: Titanium Sheet and Plate
ASTM B265 covers titanium and titanium alloy strip, sheet and plate. For a quotation, buyers should specify the required thickness, width, length, quantity and applicable delivery condition.
For fabricated equipment, the purchasing specification may also include flatness, surface finish and dimensional tolerance requirements.
ASTM B338: Titanium Tubes
ASTM B338 applies to titanium and titanium alloy tubes for condensers and heat exchangers. Buyers should clarify the required grade, tube dimensions, length and any project-specific testing or inspection requirements.
Do not use a tube specification as a substitute for a pipe specification without confirming the intended product and applicable standard.
ASTM B861 and ASTM B862: Titanium Pipe
ASTM B861 addresses seamless titanium and titanium alloy pipe, while ASTM B862 addresses welded titanium and titanium alloy pipe.
The choice between seamless and welded pipe depends on the design, service conditions and project specification. Confirm the correct standard and product requirements before ordering.
Official reference: ASTM International standards catalogue.
4. Titanium Grade 2 Chemical Composition
Titanium Grade 2 is commercially pure titanium. Its composition limits are defined by the applicable material specification.
The following table provides typical maximum limits commonly associated with Grade 2. Verify the applicable standard and edition before using these values in a purchase order or technical submission.
| Element | Typical specification limit |
|---|---|
| Titanium | Balance |
| Iron (Fe) | 0.30% maximum |
| Oxygen (O) | 0.25% maximum |
| Carbon (C) | 0.08% maximum |
| Nitrogen (N) | 0.03% maximum |
| Hydrogen (H) | 0.015% maximum |
Composition requirements and reporting conventions should be checked against the exact specification governing the material.
For critical industrial applications, request and review the material test certificate to verify the supplied heat or batch against the purchase requirements.
5. Titanium Grade 2 Mechanical Properties
Titanium Grade 2 provides moderate strength with good formability. Actual mechanical properties depend on the product form, dimensions, condition and applicable specification.
The following are commonly cited general reference values, not guaranteed acceptance values for every product:
| Property | Approximate reference value |
|---|---|
| Density | 4.51 g/cm³ |
| Elastic modulus | 105 GPa |
| Minimum tensile strength often cited | 345 MPa |
| Minimum 0.2% yield strength often cited | 275 MPa |
| Minimum elongation often cited | 20% |
Always confirm the required tensile strength, yield strength, elongation and test method against the applicable product standard and material condition.
Why mechanical properties matter
For industrial procurement, material selection must account for more than corrosion resistance. Engineers may also need to consider pressure, temperature, fatigue, forming, welding, machining and component loading.
If the product is intended for pressure equipment or another regulated application, follow the applicable design code and project specification.
6. Titanium Grade 2 Product Forms and Specification Requirements
Titanium Grade 2 may be specified in different product forms, depending on the supplier’s product range and the project requirement.
| Product form | Details to include in an enquiry |
|---|---|
| Round bar | Diameter, length, tolerance and applicable standard |
| Sheet | Thickness, width, length and surface condition |
| Plate | Thickness, dimensions and applicable inspection requirements |
| Pipe | Outside diameter, wall thickness, length and seamless or welded requirement |
| Tube | Outside diameter, wall thickness, length and heat-exchanger requirements |
| Custom component | Drawing, dimensions, machining requirements and material specification |
Availability of a particular form, size or specification must be confirmed with the supplier before committing to a delivery schedule.
7. What to Check Before Purchasing Titanium Grade 2
Use this checklist to help avoid specification errors during industrial procurement.
- Confirm the grade: Titanium Grade 2 / UNS R50400.
- Identify the product form: Bar, sheet, plate, pipe, tube or another specified form.
- State the applicable ASTM standard: Match it to the product form and project requirements.
- Provide exact dimensions: Include tolerances and length requirements.
- Confirm the material condition: Specify any requirements included in the drawing or governing standard.
- Review chemical composition: Compare the material test certificate with the purchase specification.
- Check mechanical test requirements: Confirm the required values and testing provisions.
- Specify documentation: State whether a material test certificate, traceability or additional inspection records are required.
- Explain the application: Share relevant temperature, pressure, chemical exposure and design conditions.
- Confirm quantity and delivery location: Include the required unit and destination for quotation purposes.
A clear purchase enquiry reduces ambiguity and makes it easier to establish whether the proposed material matches the engineering requirement.
8. Frequently Asked Questions
What is the UNS number for Titanium Grade 2?
Titanium Grade 2 is designated UNS R50400. The material number commonly associated with it is 3.7035.
Which ASTM standard applies to Titanium Grade 2 round bars?
ASTM B348/B348M is the relevant standard family for titanium and titanium alloy bars and billets. Confirm the grade coverage and current requirements for the exact product being purchased.
Which ASTM standard covers Titanium Grade 2 sheet and plate?
ASTM B265 covers titanium and titanium alloy strip, sheet and plate. Confirm the applicable edition and required dimensions before ordering.
Are ASTM B338 and ASTM B861 interchangeable?
No. ASTM B338 covers titanium and titanium alloy tubes for condensers and heat exchangers, while ASTM B861 covers seamless titanium and titanium alloy pipe. Select the standard according to the actual product and project requirements.
What documents should I request when buying Titanium Grade 2?
Depending on the purchase specification, buyers may request a material test certificate, chemical composition results, mechanical test results, heat or batch traceability, dimensional inspection records and other project-specific documents.
Can Titanium Grade 2 be used in corrosive environments?
It performs well in many suitable environments, but corrosion resistance depends on the chemical composition, concentration, temperature, flow and other operating conditions. Confirm compatibility before finalising material selection.
How can I request a Titanium Grade 2 quotation?
Provide the grade, product form, dimensions, quantity, applicable standard, delivery location and documentation requirements to the supplier.
9. Titanium Grade 2 Enquiries at Manan Steel & Metals
Looking for Titanium Grade 2 / UNS R50400 for an industrial project? Manan Steel & Metals welcomes enquiries from buyers seeking specialty metal materials.
To help clarify your requirement, include:
- Required product form and dimensions
- Quantity
- Applicable ASTM or project specification
- Material testing and documentation requirements
- Delivery location
Manan Steel & Metals
Phone: +91 79773 69869
Email: manansteel@gmail.com
Address: Shop No. 2, Hira Building, 97 Khetwadi Main Road, Girgaon, Mumbai – 400004, Maharashtra, India
Website: https://www.manansteel.com/
Contact the team with your technical requirement to discuss the next steps for a quotation.
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