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

17-4 Stainless Steel Materials -High Strength Steel

17-4 PH stainless steel delivers high strength, good corrosion resistance, and excellent toughness, making it ideal for aerospace, oil and gas, and high-performance industrial applications. Stocked in a variety of shapes and sizes.

Request a Quote

What is 17-4?

17-4 PH Stainless Steel is a precipitation-hardening martensitic stainless alloy known for its high strength, good corrosion resistance, and excellent mechanical properties across a wide range of heat-treated conditions. With a balanced composition of chromium, nickel, and copper, 17-4 PH delivers a unique combination of strength and toughness along with good resistance to corrosion, making it well-suited for demanding aerospace, energy, and industrial applications. It is widely used for shafts, fittings, valves, fasteners, and structural components that require high strength and reliability.

Explore all Stainless Products | View Certifications

Key Benefits:

  • High strength and hardness through heat treatment
  • Good corrosion resistance in a variety of environments
  • Excellent toughness and fatigue resistance
  • Available in multiple sizes and conditions from Fry Steel’s inventory
Meet Your Rep

Chemical Makeup

ElementMinMax
Carbon, C–0.07
Manganese, Mn–1
Silicon, Si–1
Sulfur, S–0.03
Phosphorus, P–0.04
Chromium, Cr1517.5
Molybdenum, Mo-0.5
Nickel, Ni35
Columbium (Niobium), Nb5xC0.45
Copper, Cu35

Available 17-4 Conditions

17-4 PH COND H-1150

Specifications

  • ASTM-A-564
  • CHEMS TO AMS-5643
  • AMS-5643/H1150
  • AMS-H6875/AMS-2761
  • ASTM-A-564 TYPE 630 CONDITION H1150
  • ASTM-F-899
  • GE-S-SPEC-1
  • GE-S-SPEC-35
  • CPW-100
  • PWA-300
  • ASQR-01
  • MCL F-14
  • MCL F-17
  • MCL F-23
Product Details
Buy Now

Round

There are 29 sizes and conditions.

  • 1/4 - CG
  • 3/8 - CG
  • 7/16 - CG
  • 1/2 - CG
  • 9/16 - CG
  • 5/8 - CG
  • 11/16 - CG
  • 3/4 - CG
  • 13/16 - CG
  • 7/8 - CG
  • 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
  • 2-1/4 - CG
  • 2-1/2 - CG
  • 2-3/4 - CG
  • 3 - CG
  • 3-1/2 - CG
  • 4 - HR RT
  • 4-1/2 - HR RT
  • 5 - HR RT
  • 6 - HR 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.

17-4 PH SOL

Specifications

  • AMS-2303
  • AMS-5643
  • ASTM-A-484
  • CAP. ASME-SA-564 TYPE 630
  • CAP. ASTM-A-564 TYPE 630
  • CAP. OF MBO-160-003
  • ASTM-F-899
  • GE-S-SPEC-1
  • GE-S-SPEC-35
  • CPW-100
  • PWA-300
  • ASQR-01
  • MCL F-14
  • MCL F-17
  • MCL F-23
Product Details
Buy Now

Round

There are 126 sizes and conditions.

  • 3/32 - CG
  • 7/64 - CG
  • 1/8 - CG
  • .130 - CG
  • 9/64 - CG
  • 5/32 - CG
  • 11/64 - CG
  • 3/16 - CG
  • .1925 - CG
  • 13/64 - CG
  • 7/32 - CG
  • 15/64 - CG
  • 1/4 - CG
  • .255 - CG
  • 17/64 - CG
  • 9/32 - CG
  • 19/64 - CG
  • 5/16 - CG
  • .3175 - CG
  • .3225 - CG
  • 21/64 - CG
  • 11/32 - CG
  • 23/64 - CG
  • 3/8 - CG
  • .380 - CG
  • 25/64 - CG
  • 13/32 - CG
  • 27/64 - CG
  • 7/16 - CG
  • .4425 - CG
  • 29/64 - CG
  • 15/32 - CG
  • 31/64 - CG
  • 1/2 - CG
  • .505 - CG
  • 33/64 - CG
  • 17/32 - CG
  • 9/16 - CG
  • .5675 - CG
  • 19/32 - CG
  • 5/8 - CG
  • .630 - CG
  • 21/32 - CG
  • 11/16 - CG
  • .6925 - CG
  • 23/32 - CG
  • 3/4 - CG
  • .755 - CG
  • .765 - CG
  • 25/32 - CG
  • 13/16 - CG
  • 27/32 - CG
  • 7/8 - CG
  • .880 - CG
  • 29/32 - CG
  • 15/16 - CG
  • 31/32 - CG
  • 1 - CG
  • 1.005 - CG
  • 1-1/16 - CG
  • 1-1/8 - CG
  • 1-3/16 - CG
  • 1-1/4 - CG
  • 1.265 - CG
  • 1-5/16 - CG
  • 1-3/8 - CG
  • 1-7/16 - CG
  • 1-1/2 - CG
  • 1.515 - CG
  • 1-9/16 - CG
  • 1-5/8 - CG
  • 1-11/16 - CG
  • 1-3/4 - CG
  • 1-13/16 - CG
  • 1-7/8 - CG
  • 1-15/16 - CG
  • 2 - CG
  • 2-1/16 - CG
  • 2-1/8 - CG
  • 2-3/16 - CG
  • 2-1/4 - CG
  • 2-5/16 - CG
  • 2-3/8 - CG
  • 2-7/16 - CG
  • 2-1/2 - CG
  • 2-9/16 - CG
  • 2-5/8 - CG
  • 2-11/16 - CG
  • 2-3/4 - CG
  • 2-7/8 - CG
  • 2-15/16 - CG
  • 3 - CG
  • 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
  • 5 - HR RT
  • 5-1/8 - HR RT
  • 5-1/4 - HR RT
  • 5-1/2 - HR RT
  • 5-5/8 - HR RT
  • 5-3/4 - HR RT
  • 6 - HR RT
  • 6-1/8 - HR RT
  • 6-1/4 - HR RT
  • 6-1/2 - HR RT
  • 6-3/4 - HR RT
  • 7 - HR RT
  • 7-1/4 - HR RT
  • 7-1/2 - HR RT
  • 7-3/4 - HR RT
  • 8 - HR RT
  • 8-1/4 - HR RT
  • 8-1/2 - HR RT
  • 8-3/4 - HR RT
  • 9 - HR RT

Flat

There are 126 sizes and conditions.

  • 1/8 X 1/4 - CD
  • 1/8 X 3/8 - CD
  • 1/8 X 1/2 - CF
  • 1/8 X 5/8 - CD
  • 3/16 X 3/8 - CD
  • 3/16 X 1/2 - CD
  • 3/16 X 5/8 - CD
  • 3/16 X 3/4 - HR&P
  • 3/16 X 1 - HR&P
  • 3/16 X 1-1/2 - HR&P
  • 3/16 X 1-3/4 - HR&P
  • 3/16 X 2 - HR&P
  • 3/16 X 2-1/2 - HR&P
  • 1/4 X 3/8 - CD
  • 1/4 X 1/2 - CF
  • 1/4 X 5/8 - CD
  • 1/4 X 3/4 - 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 1-3/4 - HR&P
  • 1/4 X 2 - HR&P
  • 1/4 X 2-1/2 - HR&P
  • 1/4 X 3 - HR&P
  • 1/4 X 3-1/2 - HR&P
  • 1/4 X 4 - HR&P
  • 5/16 X 1/2 - CD
  • 5/16 X 3/4 - HR&P
  • 5/16 X 1 - HR&P
  • 5/16 X 1-1/4 - HR&P
  • 5/16 X 1-1/2 - HR&P
  • 5/16 X 2 - HR&P
  • 5/16 X 2-1/2 - HR&P
  • 5/16 X 3 - HR&P
  • 3/8 X 1/2 - CF
  • 3/8 X 5/8 - HR&P
  • 3/8 X 3/4 - HR&P
  • 3/8 X 1 - HR&P
  • 3/8 X 1-1/4 - HR&P
  • 3/8 X 1-1/2 - HR&P
  • 3/8 X 1-3/4 - HR&P
  • 3/8 X 2 - HR&P
  • 3/8 X 2-1/4 - HR&P
  • 3/8 X 2-1/2 - HR&P
  • 3/8 X 3 - HR&P
  • 3/8 X 3-1/2 - HR&P
  • 3/8 X 4 - HR&P
  • 3/8 X 4-1/2 - HR&P
  • 3/8 X 5 - HR&P
  • 3/8 X 6 - HR&P
  • 1/2 X 5/8 - HR&P
  • 1/2 X 3/4 - HR&P
  • 1/2 X 7/8 - 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 2-1/4 - HR&P
  • 1/2 X 2-1/2 - HR&P
  • 1/2 X 3 - HR&P
  • 1/2 X 3-1/4 - HR&P
  • 1/2 X 3-1/2 - HR&P
  • 1/2 X 4 - HR&P
  • 1/2 X 4-1/4 - HR&P
  • 1/2 X 4-1/2 - HR&P
  • 1/2 X 5 - HR&P
  • 1/2 X 6 - HR&P
  • 5/8 X 3/4 - 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 1-3/4 - HR&P
  • 5/8 X 2 - HR&P
  • 5/8 X 2-1/4 - HR&P
  • 5/8 X 2-1/2 - HR&P
  • 5/8 X 2-3/4 - HR&P
  • 5/8 X 3 - HR&P
  • 5/8 X 3-1/4 - HR&P
  • 5/8 X 3-1/2 - HR&P
  • 5/8 X 4 - HR&P
  • 5/8 X 4-1/4 - HR&P
  • 5/8 X 4-1/2 - HR&P
  • 5/8 X 5 - HR&P
  • 5/8 X 5-1/2 - HR&P
  • 5/8 X 6 - 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 2-1/4 - HR&P
  • 3/4 X 2-1/2 - HR&P
  • 3/4 X 2-3/4 - HR&P
  • 3/4 X 3 - HR&P
  • 3/4 X 3-1/4 - 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 4-1/2 - HR&P
  • 3/4 X 5 - HR&P
  • 3/4 X 5-1/2 - HR&P
  • 3/4 X 6 - HR&P
  • 3/4 X 8 - HR&P
  • 7/8 X 1 - HR&P
  • 7/8 X 1-1/4 - HR&P
  • 7/8 X 1-1/2 - HR&P
  • 7/8 X 2 - HR&P
  • 7/8 X 2-1/4 - HR&P
  • 7/8 X 2-1/2 - HR&P
  • 7/8 X 2-3/4 - HR&P
  • 7/8 X 3 - HR&P
  • 7/8 X 3-1/2 - HR&P
  • 7/8 X 4 - HR&P
  • 1 X 1-1/4 - HR&P
  • 1 X 1-1/2 - HR&P
  • 1 X 1-3/4 - HR&P
  • 1 X 2 - HR&P
  • 1 X 2-1/4 - HR&P
  • 1 X 2-1/2 - HR&P
  • 1 X 3 - HR&P
  • 1 X 3-1/4 - HR&P
  • 1 X 3-1/2 - HR&P
  • 1 X 3-3/4 - HR&P
  • 1 X 4 - HR&P
  • 1 X 4-1/4 - HR&P

Square

There are 29 sizes and conditions.

  • 1/4 - CD
  • 5/16 - CD
  • 3/8 - CD
  • 7/16 - CD
  • 1/2 - CD
  • 9/16 - CD
  • 5/8 - CD
  • 3/4 - HR&P
  • 7/8 - HR&P
  • 1 - HR&P
  • 1-1/8 - HR&P
  • 1-1/4 - HR&P
  • 1-5/16 - HR&P
  • 1-3/8 - HR&P
  • 1-1/2 - HR&P
  • 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
  • 4-1/2 - HR&P
  • 5 - HR&P
  • 5-1/2 - HR&P
  • 6 - HR&P

Hex

There are 27 sizes and conditions.

  • 1/4 - CD
  • 9/32 - CD
  • 5/16 - CD
  • 11/32 - CD
  • 3/8 - CD
  • 13/32 - CD
  • 7/16 - CD
  • 15/32 - CD
  • 1/2 - CD
  • 17/32 - CD
  • 9/16 - CD
  • 19/32 - CD
  • 5/8 - CD
  • 21/32 - CD
  • 11/16 - CD
  • 3/4 - CD
  • 13/16 - CD
  • 7/8 - CD
  • 15/16 - CD
  • 1 - CD
  • 1-1/16 - CD
  • 1-1/8 - CD
  • 1-1/4 - CD
  • 1-3/8 - CD
  • 1-5/8 - CD
  • 1-3/4 - CD
  • 1-7/8 - CD

Common Applications

Space

Aerospace

Defense

Naval

Industrial

Power Generation

Medical

Why Buy 17-4 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

We can always rely on Fry Steel for quick quotes and fast lead times. Their team has consistently supported us on expedited projects and delivered when timing was critical. We truly value the partnership and appreciate doing business with Fry Steel.

Myra | CA

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/AS9100 program is audited annually by accredited third parties.

Request a Quote

Related Materials

Common Questions About 17-4

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.

Yes. Comparable to 304 stainless in many environments, but not as resistant as 316 in harsh corrosive conditions.

Depending on heat treatment (H900, H1025, H1150), it can reach up to ~44 HRC.

Yes, especially in Condition A. It becomes more difficult after aging.

Yes, but post-weld heat treatment is typically required to restore properties.

15-5 offers better toughness and more uniform properties, but 17-4 is more widely available.

Fry Steel Company
Order Online