Precision Cuts. Safer Handling. Operational Savings. Utilize our 60 Advanced Saws Request A Quote
Fry Steel Company
Order Online
Fry Steel Company

15-5 Stainless Steel Materials -High Strength Alloy

15‑5 stainless delivers exceptional strength, corrosion resistance, and toughness — ideal for demanding applications. Stocked in a variety of shapes and sizes.
Request a Quote

What is 15-5?

15‑5 Stainless Steel is a precipitation‑hardening, martensitic stainless alloy engineered for high strength, toughness, and corrosion resistance. Through heat treatment, 15‑5 PH develops excellent mechanical properties with reliable dimensional stability, making it well‑suited for demanding structural and precision applications. It is commonly used in aerospace components, fittings, hardware, shafts, and industrial parts requiring consistent performance under load.

Explore all Stainless Products | View Certifications

Key Benefits:

  • High strength and toughness
  • Excellent corrosion resistance
  • Good dimensional stability after heat treatment
  • Available in multiple sizes and conditions
Meet Your Rep

Chemical Makeup

ElementMinMax
Carbon, C–0.07
Manganese, Mn–1
Silicon, Si–1
Sulfur, S–0.015
Phosphorus, P–0.03
Chromium, Cr1415.5
Molybdenum, Mo-0.5
Nickel, Ni3.55.5
Columbium (Niobium), Nb5xC0.45
Copper, Cu2.54.5

Available 15-5 Conditions

H-900 through H-1150 conditions are available upon request.

15-5 ESR

Specifications

  • AMS-5659 TYPE 2 EXC. FINISH
  • ASTM-A-484
  • CAP. ASTM-A-564 TYPE XM12
  • UNS-S15500
Product Details
Buy Now

Round

There are 34 sizes and conditions.

  • 15/16 - CG
  • 1 - CG
  • 1-1/8 - CG
  • 1-1/4 - CG
  • 1-3/8 - CG
  • 1-1/2 - CG
  • 1-5/8 - CG
  • 1-3/4 - CG
  • 1-7/8 - CG
  • 2 - CG
  • 2-1/8 - RT
  • 2-1/4 - RT
  • 2-3/8 - RT
  • 2-1/2 - RT
  • 2-5/8 - RT
  • 2-3/4 - RT
  • 2-7/8 - RT
  • 3 - RT
  • 3-1/4 - RT
  • 3-3/8 - RT
  • 3-1/2 - RT
  • 3-3/4 - RT
  • 4 - RT
  • 4-1/4 - RT
  • 4-1/2 - RT
  • 5 - RT
  • 5-1/4 - RT
  • 5-1/2 - RT
  • 5-3/4 - RT
  • 6 - RT
  • 6-1/2 - RT
  • 7 - RT
  • 7-1/2 - RT
  • 8 - RT

Flat

There are no sizes and conditions for the flat cross-section.

Square

There are no sizes and conditions for the square cross-section.

Hex

There are no sizes and conditions for the hex cross-section.

15-5 PH VAC MELT

Specifications

  • AMS-2300
  • AMS-2315
  • AMS-5659 TYPE 1 EXC. FINISH
  • ASTM-A-484
  • CAP. ASTM-A-564 GRADE XM12
Product Details
Buy Now

Round

There are 102 sizes and conditions.

  • 1/8 - CG
  • 3/16 - CG
  • .1925 - CG
  • 1/4 - CG
  • .255 - CG
  • .260 - CG
  • 5/16 - CG
  • .3175 - CG
  • .3225 - CG
  • 3/8 - CG
  • .380 - CG
  • .385 - CG
  • 7/16 - CG
  • .4425 - CG
  • .447 - CG
  • 1/2 - CG
  • .505 - CG
  • .510 - CG
  • 9/16 - CG
  • .5675 - CG
  • 5/8 - CG
  • .630 - CG
  • .635 - CG
  • 11/16 - CG
  • .6925 - CG
  • 3/4 - CG
  • .755 - CG
  • .760 - CG
  • 13/16 - CG
  • 7/8 - CG
  • .885 - CG
  • 15/16 - CG
  • 1 - CG
  • 1.005 - CG
  • 1.010 - CG
  • 1-1/16 - CG
  • 1-1/8 - CG
  • 1.135 - CG
  • 1-3/16 - CG
  • 1-1/4 - CG
  • 1.260 - CG
  • 1-5/16 - CG
  • 1-3/8 - CG
  • 1.385 - CG
  • 1-7/16 - CG
  • 1-1/2 - CG
  • 1.510 - CG
  • 1-9/16 - CG
  • 1-5/8 - CG
  • 1-11/16 - CG
  • 1-3/4 - CG
  • 1.760 - CG
  • 1-13/16 - CG
  • 1-7/8 - CG
  • 1-15/16 - CG
  • 2 - CG
  • 2.010 - CG
  • 2-1/16 - HR RT
  • 2-1/8 - HR RT
  • 2-3/16 - HR RT
  • 2-1/4 - HR RT
  • 2-3/8 - HR RT
  • 2-1/2 - HR RT
  • 2-5/8 - HR RT
  • 2-3/4 - HR RT
  • 2-7/8 - HR RT
  • 3 - HR RT
  • 3-1/8 - HR RT
  • 3-1/4 - HR RT
  • 3-3/8 - HR RT
  • 3-1/2 - HR RT
  • 3-5/8 - HR RT
  • 3-3/4 - HR RT
  • 3-7/8 - HR RT
  • 4 - HR RT
  • 4-1/8 - HR RT
  • 4-1/4 - HR RT
  • 4-3/8 - HR RT
  • 4-1/2 - HR RT
  • 4-5/8 - HR RT
  • 4-3/4 - HR RT
  • 4-7/8 - HR RT
  • 5 - HR RT
  • 5-1/4 - HR RT
  • 5-1/2 - HR RT
  • 5-3/4 - HR RT
  • 6 - HR RT
  • 6-1/4 - HR RT
  • 6-1/2 - HR RT
  • 6-3/4 - HR RT
  • 7 - HR RT
  • 7-1/2 - HR RT
  • 8 - HR RT
  • 8-1/2 - HR RT
  • 9 - HR RT
  • 9-1/2 - HR RT
  • 10 - HR RT
  • 10-1/2 - HR RT
  • 11 - HR RT
  • 12 - HR RT
  • 14 - HR RT
  • 15 - HR RT

Flat

There are 103 sizes and conditions.

  • 3/16 X 1 - HR&P
  • 3/16 X 1-1/4 - HR&P
  • 3/16 X 1-1/2 - HR&P
  • 3/16 X 2 - HR&P
  • 3/16 X 2-1/2 - HR&P
  • 3/16 X 3 - HR&P
  • 1/4 X 1 - HR&P
  • 1/4 X 1-1/4 - HR&P
  • 1/4 X 1-1/2 - HR&P
  • 1/4 X 2 - HR&P
  • 1/4 X 2-1/2 - HR&P
  • 1/4 X 3 - HR&P
  • 5/16 X 1 - HR&P
  • 5/16 X 1-1/2 - HR&P
  • 5/16 X 2 - HR&P
  • 5/16 X 3 - HR&P
  • 3/8 X 1 - HR&P
  • 3/8 X 1-1/2 - HR&P
  • 3/8 X 2 - HR&P
  • 3/8 X 2-1/2 - HR&P
  • 3/8 X 3 - HR&P
  • 3/8 X 4 - HR&P
  • 1/2 X 1 - HR&P
  • 1/2 X 1-1/4 - HR&P
  • 1/2 X 1-1/2 - HR&P
  • 1/2 X 1-3/4 - HR&P
  • 1/2 X 2 - HR&P
  • 1/2 X 2-1/2 - HR&P
  • 1/2 X 3 - HR&P
  • 1/2 X 4 - HR&P
  • 1/2 X 5 - HR&P
  • 1/2 X 6 - HR&P
  • 5/8 X 1 - HR&P
  • 5/8 X 1-1/4 - HR&P
  • 5/8 X 1-1/2 - HR&P
  • 5/8 X 2 - HR&P
  • 5/8 X 2-1/2 - HR&P
  • 5/8 X 3 - HR&P
  • 5/8 X 4 - HR&P
  • 3/4 X 1 - HR&P
  • 3/4 X 1-1/4 - HR&P
  • 3/4 X 1-1/2 - HR&P
  • 3/4 X 1-3/4 - HR&P
  • 3/4 X 2 - HR&P
  • 3/4 X 2-1/2 - HR&P
  • 3/4 X 3 - HR&P
  • 3/4 X 3-1/2 - HR&P
  • 3/4 X 4 - HR&P
  • 3/4 X 4-1/4 - HR&P
  • 3/4 X 5 - HR&P
  • 3/4 X 6 - HR&P
  • 1 X 1-1/4 - HR&P
  • 1 X 1-1/2 - HR&P
  • 1 X 2 - HR&P
  • 1 X 2-1/2 - HR&P
  • 1 X 3 - HR&P
  • 1 X 3-1/2 - HR&P
  • 1 X 4 - HR&P
  • 1 X 5 - HR&P
  • 1 X 6 - HR&P
  • 1-1/4 X 1-1/2 - HR&P
  • 1-1/4 X 2 - HR&P
  • 1-1/4 X 2-1/2 - HR&P
  • 1-1/4 X 3 - HR&P
  • 1-1/4 X 4 - HR&P
  • 1-1/4 X 5 - HR&P
  • 1-1/4 X 6 - HR&P
  • 1-3/8 X 2 - HR&P
  • 1-3/8 X 2-1/2 - HR&P
  • 1-1/2 X 2 - HR&P
  • 1-1/2 X 2-1/2 - HR&P
  • 1-1/2 X 3 - HR&P
  • 1-1/2 X 4 - HR&P
  • 1-1/2 X 5 - HR&P
  • 1-1/2 X 6 - HR&P
  • 1-3/4 X 2 - HR&P
  • 1-3/4 X 2-1/2 - HR&P
  • 1-3/4 X 3 - HR&P
  • 1-3/4 X 3-1/2 - HR&P
  • 1-3/4 X 4 - HR&P
  • 1-3/4 X 5 - HR&P
  • 1-3/4 X 6 - HR&P
  • 2 X 2-1/2 - HR&P
  • 2 X 3 - HR&P
  • 2 X 3-1/2 - HR&P
  • 2 X 4 - HR&P
  • 2 X 5 - HR&P
  • 2 X 6 - HR&P
  • 2-1/4 X 3 - HR&P
  • 2-1/4 X 4 - HR&P
  • 2-1/4 X 6 - HR&P
  • 2-1/2 X 3 - HR&P
  • 2-1/2 X 3-1/2 - HR&P
  • 2-1/2 X 4 - HR&P
  • 2-1/2 X 6 - HR&P
  • 3 X 4 - HR&P
  • 3 X 4-1/2 - HR&P
  • 3 X 5 - HR&P
  • 3 X 6 - HR&P
  • 3 X 8 - HR&P
  • 3-1/2 X 4 - HR&P
  • 4 X 6 - HR&P
  • 4 X 8 - HR&P

Square

There are 18 sizes and conditions.

  • 1/2 - CD
  • 5/8 - CD
  • 3/4 - CD
  • 1 - CD
  • 1-1/4 - CD
  • 1-1/2 - HR
  • 1-5/8 - HR&P
  • 1-3/4 - HR&P
  • 2 - HR&P
  • 2-1/4 - HR&P
  • 2-3/8 - HR&P
  • 2-1/2 - HR&P
  • 2-3/4 - HR&P
  • 3 - HR&P
  • 3-1/2 - HR&P
  • 4 - HR&P
  • 5 - HR&P
  • 6 - HR&P

Hex

There are 12 sizes and conditions.

  • 1/2 - CD
  • 9/16 - CF
  • 5/8 - CD
  • 11/16 - CD
  • 3/4 - CD
  • 13/16 - CD
  • 7/8 - CD
  • 1 - CD
  • 1-1/8 - CD
  • 1-1/4 - CD
  • 1-3/8 - CD
  • 1-1/2 - CD

15-5 VM COND H-1025

Specifications

  • AMS-2300
  • AMS-2315
  • AMS-5659 T-1 (COND H-1025)EXC.FINISH
  • AMS-H-6875
  • ASTM-A-484
  • ASTM-A-564 TYPE XM-12 (COND H-1025)
Product Details
Buy Now

Round

There are 29 sizes and conditions.

  • 1/2 - CG
  • 5/8 - CG
  • 3/4 - CG
  • 7/8 - CG
  • 1 - CG
  • 1-1/8 - CG
  • 1-1/4 - CG
  • 1-3/8 - CG
  • 1-1/2 - CG
  • 1-5/8 - CG
  • 1-3/4 - CG
  • 1-7/8 - CG
  • 2 - CG
  • 2-1/8 - RT
  • 2-1/4 - RT
  • 2-3/8 - RT
  • 2-1/2 - RT
  • 2-5/8 - RT
  • 2-3/4 - RT
  • 2-7/8 - RT
  • 3 - RT
  • 3-1/4 - RT
  • 3-3/8 - RT
  • 3-1/2 - RT
  • 3-3/4 - RT
  • 4 - RT
  • 4-1/2 - RT
  • 5 - RT
  • 6 - RT

Flat

There are no sizes and conditions for the flat cross-section.

Square

There are no sizes and conditions for the square cross-section.

Hex

There are no sizes and conditions for the hex cross-section.

Common Applications

Space

Aerospace

Defense

Naval

Industrial

Power Generation

Medical

Why Buy 15-5 From Fry Steel?

Fry Steel has an ISO 9001 certification specific to aerospace SAE standards AS9100D & AS9120B, so we meet the global industry quality standard. Our suppliers are held to the same standard, and the stock is traceable. We’re audited every year by International Standards Authority, Inc. to ensure our quality program meets all current requirements.

Certifications

ISO 9001:2015

AS9120B

ISO 9001:2015

AS9100D

ISO

13485

View our Certifications

For over 25 years, Fry Steel has consistently exceeded our expectations. Their customer service is outstanding! We’ve never had a single issue with their products or services. Fry Steel is always our first call for material questions, and their experience and reliability are truly unmatched.

Lulu | AZ

Stainless SteelSuppliers in the USA

Fry Steel Company is a leading raw material supplier globally. Fry Steel’s ISO 13485/9001/AS9120/AS9100D certification is your assurance that we meet the global industry standard for quality. We hold our suppliers to the same standard, so all of our metal stock is completely traceable. Our ISO 13485/9001/AS9120/AS9100D program is audited annually by International Standards Authority, Inc.

Request a Quote

Related Materials

Common Questions About 15-5

Next day shipping is available on in-stock, qualifying orders. Fulfillment times vary for material that requires ordering from a vendor. Reach out to you rep for more information.

PH = Precipitation Hardenable.
It gains strength through a heat-treatment process (aging) rather than cold working alone.

Common reasons:

  • Better toughness, especially in thicker sections

  • More consistent mechanical properties

  • Improved transverse ductility

In short: same family, but 15-5 behaves more predictably.

Yes—good corrosion resistance, similar to 304 stainless in many environments. However, it’s not ideal for highly acidic or chloride-heavy environments like seawater without additional protection.

  • Machines well in solution-annealed condition

  • Becomes harder to machine after aging

  • Best practice: machine first, heat treat second

Still considered very machinable for a high-strength stainless.

It depends on the goal:

  • 15-5 → strength, precision, load-bearing

  • 316 → corrosion resistance, marine/chemical environments

Not competitors—different jobs.

Fry Steel Company
Order Online