Alloy A286 Round Bar Buying Guide – Size, ASTM A453, MTC & Specifications
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Table of Contents
- What Is an Alloy A286 Round Bar?
- Why A286 Round Bar Is Used
- A286 Round Bar Designations
- A286 Round Bar Sizes
- Understanding A286 Specifications
- ASTM A453 and A286
- A286 Heat-Treatment Condition
- What Should an A286 MTC Contain?
- A286 Round Bar Dimensional Checks
- How to Specify A286 Round Bar in an Enquiry
- Factors Affecting A286 Round Bar Pricing
- Common Buying Mistakes
- Applications of A286 Round Bar
- Frequently Asked Questions
- Why Buy A286 Round Bar from Manan Steel & Metals?
- Conclusion
What Is an Alloy A286 Round Bar?
Alloy A286 Round Bar is a solid cylindrical bar manufactured from A286, a precipitation-hardening iron-nickel-chromium alloy designed for applications requiring a combination of strength, corrosion resistance and elevated-temperature performance.
A286 is also known by several designations, including:
- Alloy A286
- Alloy 286
- Alloy 660
- AISI 660
- UNS S66286
- Werkstoff 1.4980
- EN X6NiCrTiMoVB25-15-2
The exact designation appearing on a material certificate depends on the applicable specification and product form.
A286 round bar is commonly considered when components require more mechanical strength than conventional austenitic materials can provide while retaining useful corrosion and temperature performance.
For procurement, however, simply asking for “A286 round bar” is not enough. The buyer should specify the size, condition, applicable standard, testing requirements and documentation.
Why Is A286 Round Bar Used?
A286 is strengthened through a precipitation-hardening mechanism.
This gives the material a useful combination of:
- High mechanical strength
- Good corrosion resistance
- Elevated-temperature strength
- Good creep resistance
- Good oxidation resistance in suitable conditions
- Useful ductility
- Good engineering versatility
The material is therefore used in demanding components such as fasteners, shafts, turbine-related parts, aerospace hardware, valve components and other engineering applications.
Manufacturer data from Carpenter Technology identifies A-286 for high-strength and corrosion-resistant applications, including service at elevated temperatures.
A286 Round Bar Designations
Before ordering, make sure that the designation on your purchase order matches the material required by the drawing or engineering specification.
| Designation | Common Identification |
|---|---|
| A286 | Commercial alloy designation |
| Alloy 286 | Alternate commercial name |
| Alloy 660 | Common alternate designation |
| AISI 660 | AISI designation |
| UNS S66286 | UNS designation |
| 1.4980 | Werkstoff number |
| X6NiCrTiMoVB25-15-2 | EN designation |
Some manufacturers and specifications may identify related A286 material variants using additional material numbers.
Therefore, UNS S66286 + applicable specification + product form is generally more useful for procurement than relying on a trade name alone.
A286 Round Bar Sizes
A286 round bar is purchased in different diameters and lengths depending on the component being manufactured.
Typical purchase specifications may include:
| Requirement | Example to Specify |
|---|---|
| Material | Alloy A286 |
| UNS | S66286 |
| Product form | Round Bar |
| Diameter | Required diameter in mm |
| Length | Fixed or commercial length |
| Condition | As required by specification |
| Standard | Applicable ASTM / AMS / EN standard |
| Surface | Bright / machined / as specified |
| Testing | Mechanical / chemical / additional testing |
| Documentation | MTC required |
The available size range depends on the supplier, manufacturing route, stock availability and applicable product specification.
For this reason, buyers should not assume that every supplier stocks every A286 diameter.
If a specific diameter is required, mention it clearly in the enquiry.
Understanding A286 Specifications
A material specification does much more than identify the alloy.
It can define requirements relating to:
- Chemical composition
- Mechanical properties
- Heat treatment
- Product dimensions
- Testing
- Surface condition
- Workmanship
- Inspection
- Certification
For A286 round bar, the appropriate specification depends on the intended use.
For example, an aerospace component may require an AMS specification, while high-temperature bolting may be purchased against an ASTM specification applicable to that product.
This is why an enquiry such as:
“A286 round bar, 25 mm”
may not provide enough information for a technical quotation.
A more useful enquiry identifies the material, diameter, length, standard, condition and documentation requirements.
ASTM A453 and A286
One of the commonly encountered standards when researching A286 is ASTM A453/A453M.
ASTM A453/A453M covers high-temperature bolting materials with coefficient of expansion and modulus of elasticity requirements suitable for high-temperature service.
A286 is associated with Grade 660 under the relevant ASTM specification.
However, an important procurement point is:
ASTM A453 should not automatically be assumed to apply to every A286 round bar.
The standard is product- and application-specific.
If you are purchasing A286 round bar as raw material for machining, the required material specification should be confirmed against the drawing, purchase specification or end-use requirement.
For official information, refer to the ASTM A453/A453M specification page.
Other specifications may also be relevant depending on product form and application, including ASTM A638/A638M and aerospace specifications such as AMS 5731 and AMS 5732.
A286 Heat-Treatment Condition
Heat treatment is a critical purchasing parameter for A286.
A286 can obtain high strength through precipitation or age hardening, but the final properties depend on the specified metallurgical condition.
A purchase enquiry should therefore clarify whether the material needs to be:
- Solution treated
- Age hardened
- Supplied in a specified condition
- Machining-ready
- Supplied according to a particular standard
Do not select a heat-treatment condition simply because it produces the highest tensile strength.
The correct condition depends on the actual component.
For example, a machined shaft, high-temperature fastener and aerospace component may have different specification requirements.
The relevant standard or engineering drawing should always control the final condition.
What Should an A286 MTC Contain?
An MTC, or Material Test Certificate, is an important document when purchasing A286 for industrial applications.
A typical certificate may contain:
Material Identification
- Alloy designation
- UNS number
- Heat number
- Product form
- Size
Chemical Analysis
The certificate should provide the tested chemical composition against the applicable specification.
Typical elements reported for A286 include:
- Nickel
- Chromium
- Molybdenum
- Titanium
- Aluminum
- Vanadium
- Carbon
- Manganese
- Silicon
- Boron
- Iron balance
Mechanical Testing
Depending on the applicable specification, the certificate may include:
- Tensile strength
- Yield strength
- Elongation
- Reduction of area
- Hardness
Heat Treatment
The certificate may identify the relevant heat-treatment condition and processing information required by the applicable standard.
Traceability
The heat number is particularly important because it connects the certificate with the supplied material.
For critical applications, buyers should make sure the heat number on the material and documentation are traceable.
A286 Round Bar Dimensional Checks
Material certification is only one part of receiving inspection.
The actual bar should also be checked against the purchase requirement.
Important dimensional checks can include:
Diameter
Measure the diameter at appropriate points to verify compliance with the specified tolerance.
Length
Confirm that the supplied length meets the purchase order.
Straightness
For machining or automated production, excessive bow or distortion can create problems.
Surface Condition
Look for:
- Deep scratches
- Pitting
- Cracks
- Scale
- Excessive machining marks
- Other visible surface defects
The exact acceptable tolerance and surface condition should be based on the applicable product specification or purchase order.
How to Specify A286 Round Bar in an Enquiry
A clear enquiry saves time and reduces the chance of receiving an unsuitable quotation.
Instead of writing:
“Need A286 bar.”
Use a format such as:
Material: Alloy A286
UNS: S66286
Product: Round Bar
Diameter: Required diameter
Length: Required length
Quantity: Required quantity
Condition: As per applicable specification
Standard: ASTM / AMS / EN as required
MTC: Required
Application: If relevant
Delivery Location: Destination city
For example:
Alloy A286 Round Bar – UNS S66286 – 30 mm Dia × required length – quantity as required – MTC required – applicable specification to be confirmed.
Providing this information allows the supplier to check technical suitability and availability more efficiently.
Factors Affecting A286 Round Bar Pricing
A286 is a specialty engineering alloy, so its price depends on more than simply the weight of the bar.
Major factors include:
1. Diameter
Larger sizes generally require different manufacturing routes and affect the material quantity.
2. Quantity
The commercial rate can vary according to the required quantity.
3. Length
Cut lengths and special lengths may affect processing and handling costs.
4. Heat-Treatment Condition
Special processing requirements can affect the final price.
5. Certification
Testing and certification requirements can influence the overall quotation.
6. Surface Finish
Bright, peeled, ground or machined conditions can involve additional processing.
7. Delivery Location
Freight and logistics can affect the delivered cost.
8. Market Conditions
Specialty-alloy prices can change based on raw-material costs, availability and supply conditions.
For this reason, a serious buyer should request a quotation based on the exact specification and quantity, rather than comparing only a generic per-kilogram price.
Common A286 Buying Mistakes
Mistake 1: Ordering Only by Trade Name
“A286” by itself may not define the complete purchasing requirement.
Better: Include UNS, specification, product form and condition.
Mistake 2: Ignoring Heat Treatment
A286’s properties depend significantly on its metallurgical condition.
Better: State the required condition according to the drawing or specification.
Mistake 3: Assuming ASTM A453 Applies to Every Bar
ASTM specifications are product-specific.
Better: Confirm the correct standard for the intended application.
Mistake 4: Not Asking for an MTC
For industrial applications, missing documentation can create problems during receiving inspection or quality approval.
Better: State “MTC required” when certification is necessary.
Mistake 5: Not Providing Dimensions
A quotation cannot be accurately prepared from the alloy name alone.
Better: Include diameter, length and quantity.
Applications of A286 Round Bar
A286 round bar can be machined into components used in demanding engineering applications.
Common application areas include:
- Aerospace hardware
- High-temperature fasteners
- Bolts and nuts
- Shafts
- Turbine components
- Valve components
- Power-generation equipment
- Oil & gas equipment
- Chemical-processing equipment
- Industrial machinery
- High-temperature engineering components
Its ability to combine strength and corrosion resistance makes it useful where both mechanical loading and environmental exposure need to be considered.
Frequently Asked Questions
What is the UNS number of A286 round bar?
The commonly associated UNS designation is S66286.
What is the Werkstoff number of A286?
1.4980 is a commonly referenced Werkstoff number for A286.
Is A286 the same as AISI 660?
AISI 660 is a commonly used designation associated with A286 / Alloy 660.
What standard is used for A286?
The applicable standard depends on the product and application. ASTM A453/A453M Grade 660, ASTM A638/A638M and aerospace specifications such as AMS 5731/5732 are among the specifications associated with A286 material.
Does A286 round bar come with an MTC?
It can be supplied with material certification when requested and when applicable to the purchase specification. Buyers should clearly state their documentation requirements in the enquiry.
Can A286 round bar be machined?
Yes. A286 can be machined, although its high strength and work-hardening characteristics require appropriate tooling, cutting parameters and machining practices.
Is A286 suitable for high-temperature applications?
Yes. A286 is used in high-temperature engineering applications, including aerospace and power-generation components. Actual service temperature depends on stress, environment, exposure duration, material condition and design requirements.
Is 1.4980 always the only material number for A286?
No. 1.4980 is a commonly referenced designation, but manufacturers and specifications may identify related A286 variants under additional material numbers. The purchase specification should therefore be checked before ordering.
Why Buy Alloy A286 Round Bar from Manan Steel & Metals?
Manan Steel & Metals supplies Alloy A286 Round Bar for industrial and engineering requirements.
We can discuss requirements based on:
- Alloy A286
- UNS S66286
- 1.4980
- AISI 660
- Required diameter
- Required length
- Required quantity
- Applicable specification
- Heat-treatment condition
- MTC requirements
For current product information, visit the Alloy A286 Round Bar page.
You can also explore Manan Steel & Metals Round Bar products or visit the Manan Steel & Metals website.
Request an A286 Round Bar Quotation
Send us your required diameter, length, quantity, specification and delivery location for a commercial enquiry.
Manan Steel & Metals
Shop No. 2, Hira Building, 97 Khetwadi Main Road,
Girgaon, Mumbai – 400004, Maharashtra, India
Phone: 7977369869
Email: manansteel@gmail.com
Website: https://www.manansteel.com/
Conclusion
Buying Alloy A286 Round Bar requires more than identifying the alloy.
A reliable procurement specification should cover the UNS designation, product dimensions, applicable standard, heat-treatment condition, mechanical requirements, testing and MTC documentation.
For buyers searching for A286, Alloy 660, AISI 660, UNS S66286 or 1.4980 round bar, providing complete technical information at the enquiry stage helps suppliers quote the appropriate material and reduces specification errors.
For industrial A286 round bar requirements, contact Manan Steel & Metals with your size, quantity and technical specification.