Nitronic 50 Round Bar Sizes, Specifications, ASTM Standards & MTC

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Table of Contents

  1. What Is Nitronic 50 Round Bar?
  2. Nitronic 50 Round Bar Sizes
  3. Nitronic 50 Diameter and Length
  4. Nitronic 50 Specifications
  5. Nitronic 50 ASTM Standards
  6. UNS S20910 Identification
  7. Nitronic 50 MTC Requirements
  8. How to Check a Nitronic 50 Material Certificate
  9. Choosing the Correct Nitronic 50 Bar Size
  10. How to Write a Nitronic 50 Enquiry
  11. Frequently Asked Questions
  12. Nitronic 50 Round Bar Enquiry

What Is Nitronic 50 Round Bar?

Nitronic 50 round bar is a solid circular bar manufactured from Nitronic 50, a nitrogen-strengthened austenitic stainless alloy commonly identified by UNS S20910.

It is used as a raw material for manufacturing and machining components such as:

  • Shafts
  • Pins
  • Bushes
  • Fasteners
  • Valve components
  • Pump components
  • Marine hardware
  • Industrial machined parts

For procurement teams, choosing the correct Nitronic 50 round bar size and specification is just as important as identifying the correct material grade.

A quotation request should therefore contain the material designation, diameter, length, quantity, applicable standard and certification requirements.

Nitronic 50 Round Bar Sizes

There is no single universal size for Nitronic 50 round bar.

The required diameter depends on the component being manufactured, machining allowance and engineering drawing.

A buyer may request sizes such as:

RequirementExample
Diameter10 mm
Diameter20 mm
Diameter25 mm
Diameter30 mm
Diameter40 mm
Diameter50 mm
Diameter60 mm
Diameter75 mm
Diameter100 mm

These are examples of enquiry sizes, not a guaranteed stock list.

Availability depends on the supplier, production route, current stock, required tolerance, quantity and specification.

For a custom requirement, buyers should provide the exact diameter required rather than asking only for “Nitronic 50 bar.”

Nitronic 50 Diameter and Length

Two of the most important dimensions when purchasing Nitronic 50 round bar are diameter and length.

Diameter

The diameter should match the engineering requirement and should account for any machining allowance.

For example:

Nitronic 50 Round Bar – 50 mm Dia

is more useful to a supplier than:

Nitronic 50 bar required.

Length

The buyer should also mention the required length.

Common enquiry descriptions include:

  • Fixed length
  • Cut length
  • Random length
  • Standard commercial length

For example:

50 mm Dia × 3000 mm Long

If the final component will be machined, the buyer should determine whether additional material is required for machining.

Nitronic 50 Specifications

A complete Nitronic 50 specification normally involves more than the alloy name.

A procurement specification can include:

RequirementExample
MaterialNitronic 50
UNSS20910
ProductRound Bar
Diameter50 mm
Length3000 mm
StandardApplicable ASTM specification
ConditionAs specified
Quantity100 Kg
MTCRequired
InspectionAs required
DeliveryMumbai / destination

This information helps the supplier understand exactly what the buyer needs.

For critical engineering projects, the purchase order should also reference the customer’s drawing, project specification or technical standard where applicable.

Nitronic 50 ASTM Standards

One of the most important purchasing considerations is selecting the correct ASTM standard for the product form and application.

Carpenter Technology lists several specifications applicable to its 22Cr-13Ni-5Mn / Nitronic 50 alloy, including:

  • ASTM A240
  • ASTM A276
  • ASTM A412
  • ASTM A479
  • ASTM A580
  • ASTM F1314

It also lists several AMS specifications. (Carpenter Technology)

However, these standards do not all apply to every Nitronic 50 round bar.

For example, ASTM A276 covers stainless steel bars and shapes, while ASTM A479 addresses stainless steel bars and shapes for pressure vessels and general applications.

ASTM F1314 has a much more specific scope: it covers wrought nitrogen-strengthened 22Cr-13Ni-5Mn stainless steel alloy bar and wire for surgical implants under UNS S20910. (ASTM International)

Therefore, buyers should always specify the standard appropriate to their actual product and application.

UNS S20910 Identification

UNS S20910 is an important identification term for Nitronic 50.

Including the UNS designation in an enquiry is useful because it gives the supplier a precise material reference.

For example:

Nitronic 50 Round Bar – UNS S20910

This can be preferable to using only:

Nitronic 50 Stainless Bar

because the UNS designation provides a standardized material identification.

Other terminology that may appear in technical information includes:

  • Nitronic 50
  • UNS S20910
  • 22Cr-13Ni-5Mn
  • XM-19

Carpenter Technology identifies its 22Cr-13Ni-5Mn alloy as UNS S20910. (Carpenter Technology)

Nitronic 50 MTC Requirements

An MTC, or Material Test Certificate, provides important information about the material supplied.

When buying Nitronic 50 round bar for an industrial application, the buyer may require an MTC showing information such as:

  • Material designation
  • UNS number
  • Heat number
  • Chemical composition
  • Mechanical test results
  • Product dimensions
  • Heat treatment condition
  • Applicable standard
  • Inspection information

The exact certificate contents depend on the applicable specification and purchase requirements.

For example, a buyer may specify:

Nitronic 50 Round Bar – UNS S20910 – MTC Required

For critical applications, additional inspection requirements should be agreed before the order is confirmed.

How to Check a Nitronic 50 Material Certificate

When an MTC is received, the buyer should compare the certificate against the purchase order.

Check 1: Material Grade

Confirm that the certificate identifies the required Nitronic 50 material.

Check 2: UNS Number

Look for:

UNS S20910

Check 3: Heat Number

The heat number should provide traceability between the certificate and supplied material.

Check 4: Chemical Composition

Compare the reported chemistry against the applicable specification.

Check 5: Mechanical Properties

Check the reported mechanical test results against the requirements of the specified standard and material condition.

Check 6: Dimensions

Confirm that the certificate and delivery documentation correspond to the ordered product dimensions where applicable.

Check 7: Standard

Verify that the certificate references the correct applicable specification.

This process helps procurement teams maintain material traceability.

Choosing the Correct Nitronic 50 Bar Size

Selecting a diameter should begin with the final component rather than the available stock size.

Consider:

Component Diameter

What finished diameter is required?

Machining Allowance

Will the round bar be turned, ground, milled or otherwise machined?

Finished Length

What is the final component length?

Quantity

Is the requirement for a few pieces, hundreds of kilograms or larger quantities?

Tolerance

Does the engineering drawing require a specific dimensional tolerance?

Surface Condition

Does the application require a particular surface finish or condition?

These details can significantly affect which bar specification should be purchased.

How to Write a Nitronic 50 Enquiry

A clear enquiry can save time during the quotation process.

Instead of writing:

“Please quote Nitronic 50.”

provide a complete requirement.

Example Nitronic 50 Enquiry

Material: Nitronic 50
UNS: S20910
Product: Round Bar
Diameter: 50 mm
Length: 3000 mm
Quantity: 100 Kg
Standard: Applicable ASTM specification
MTC: Required
Inspection: As required
Delivery Location: Mumbai, India

If you have a drawing, project specification or existing material certificate, mentioning those requirements can further reduce uncertainty.

Nitronic 50 Round Bar Buying Checklist

Before placing an order, confirm:

  • Nitronic 50 grade
  • UNS S20910
  • Product form
  • Diameter
  • Length
  • Quantity
  • Applicable ASTM specification
  • Material condition
  • MTC requirement
  • Inspection requirement
  • Delivery location
  • Required tolerance
  • Surface condition, if applicable

This checklist is especially useful for procurement teams purchasing specialty alloy bars for industrial production.

Frequently Asked Questions

What is the UNS number for Nitronic 50?

Nitronic 50 is commonly identified by UNS S20910.

What sizes are available in Nitronic 50 round bar?

Nitronic 50 round bar can be sourced in different diameters depending on supplier capability, stock, production route and customer requirements. The required diameter should be specified in the enquiry.

What is the standard for Nitronic 50 round bar?

The applicable standard depends on the product form and application. Carpenter Technology lists ASTM A276 and ASTM A479 among the specifications applicable to its 22Cr-13Ni-5Mn alloy. (Carpenter Technology)

Is ASTM F1314 applicable to every Nitronic 50 bar?

No. ASTM F1314 has a specific scope covering wrought UNS S20910 bar and wire for surgical implants. It should not automatically be specified for general industrial Nitronic 50 requirements. (ASTM International)

What is an MTC for Nitronic 50?

MTC means Material Test Certificate. It provides material and test information associated with the supplied heat or product, subject to the applicable specification and purchase requirements.

What should I mention when requesting Nitronic 50 round bar?

Mention Nitronic 50, UNS S20910, diameter, length, quantity, applicable specification, material condition, MTC requirements and delivery location.

Technical References

For additional technical information:

For the commercial product, visit the Nitronic 50 Round Bar page at Manan Steel & Metals.

Nitronic 50 Round Bar Supplier – Manan Steel & Metals

Looking for Nitronic 50 round bar / UNS S20910 for an industrial requirement?

Manan Steel & Metals supplies specialty alloy and engineering metal products for industrial buyers.

Send your complete requirement:

Grade + UNS + Diameter + Length + Quantity + Specification + Delivery Location

Our team can check the requirement and provide pricing and availability based on the requested specification.

Manan Steel & Metals

Shop No. 2, Hira Building,
97 Khetwadi Main Road (Nanubhai Desai Road),
Girgaon, Mumbai – 400004, Maharashtra, India

Phone: 7977369869
Email: manansteel@gmail.com
Website: www.manansteel.com

For Nitronic 50 round bar requirements, send your required size and quantity for a quotation.