17-4 PH stainless steel
ANY SIZE – ANY TIME
Your specialist for sawn steel from forged billets directly from stock in Texas. We provide metal cutting services.
Special features of 17-4 PH stainless steel
Introducing 17-4 PH steel – the epitome of strength, durability, and versatility. This exceptional steel alloy is renowned for its outstanding combination of high strength, corrosion resistance, and excellent mechanical properties. Material 17-4 ph stainless steel material is characterized by high yield strength, good corrosion resistance, strength, thermal conductivity, very good dimensional stability and high wear resistance.
17-4 PH is one of the most important age-hardenable Cr – Ni – Cu steels. Low temperature service is possible by intercalation with Condition:
- A
- 17 4 H900
- 17 4 H1100
- 17 4 H1150
- 17 4 H1025
Excellent notched impact strength is also provided at sub-zero temperatures. The good mechanical properties and corrosion resistance make the material suitable for use in marine environments, but is susceptible to crevice corrosion in stagnant seawater.
Areas of application for 17-4 PH ss
Whether you’re in the automotive, or manufacturing industry, 17-4 PH stainless steel is your ultimate solution. Its unique composition, including chromium, nickel, and copper, provides exceptional resistance to various corrosive environments, making it ideal for applications where durability is paramount.
But that’s not all! Material 17-4 PH also offers remarkable machinability, allowing for easy fabrication and precision machining. Its heat treatable nature enables you to achieve a wide range of mechanical properties, tailoring it to meet your specific requirements. SS steel high pressure pumps for oil and gas industry.
With stainless steel alloy 17-4 PH, you can trust in its exceptional performance and reliability. Its high strength-to-weight ratio makes it perfect for weight-sensitive applications, while its resistance to stress corrosion cracking ensures long-lasting performance even in demanding conditions.
Don’t compromise on quality and durability. Choose Alloy 17-4 PH steel for your next project and experience the difference it can make. Contact us today to learn more about this remarkable steel alloy and how it can elevate your products to new heights. Need a custom rectangle bar 17-4 PH? Contact us for tailored solutions that meet your exact specifications.
Available in swap state:
Condition H1150 (Rm > 930N/mm2)
Condition H1025 (Rm > 1070N/mm2)
Condition H900 (Rm > 1310N/mm2)
Condition A (Rm max. 1200N/mm2) max. hardness of 363 HB.
International identifiers for 17-4 PH stainless steel:
AISI 630, ASTM A564-89 17-4 PH, JIS SCS24 / SUS630, AFNOR Z7CNU15-05 / Z7CNU17-04
Applications of 17-4 PH:
Due to good mechanical properties and corrosion resistance, the material is suitable for use in marine environments, but is susceptible to crevice corrosion in stagnant seawater.
17-4 PH is classified under AISI 630.
The material 17-4 PH is used in plant construction, the chemical industry, the woodworking industry, offshore, shipbuilding, mechanical engineering, the oil industry, the paper industry, the sports and leisure industry and as a cast variant (ESR) in air and aerospace.
Properties of 17-4 PH stainless steel:
| malleability: | good |
| weldability: | good |
| mechanical properties: | excellent |
| corrosion resistance: | good |
| machinability: | bad to medium |
The special properties of the 17-4 PH material are its suitability for low temperatures and its usability up to approx. 315 °C.
Forging of AISI 17-4 PH: Forging of 17 4 stainless steel takes place in a temperature range from 1180 °C to 950 °C. Cooling to room temperature takes place in air.
Steel 17-4 PH: Welding: Optimum welding conditions are required for welding. The condition of the base material must be taken into account, as copper is present in stable form. This does not promote hot cracking. To prevent stress cracking, the material must be subjected to solution annealing again within a very short time after welding, followed by aging.
Corrosion resistance of stainless steel 17-4 PH: The stainless steel is suitable for use in marine environments. This stainless steel has very good mechanical properties and corrosion resistance. Additional protection is required against crevice corrosion caused by standing seawater.
Machining of material 17-4 PH: This material is machinable in the age-hardened and solution-annealed condition. Depending on the hardness, the machinability varies depending on the condition.
Heat treatment
between the temperature of 1020°C and 1050°C the 17-4 PH material should be sprayed out of solution. This is followed by quenching in water, oil or air. This depends on the cross section of the component.
To ensure the complete transformation of an austenite to a martensite, the material must be able to cool to room temperature.
physical properties:
| density in kg/cm³ | 7,8 |
| electrical resistance at 20°C in (Ω mm²)m | 0,71 |
| thermal conductivity at 20°C in W/(m K) | 16 |
| specific heat capacity at 20°C in J/(kgK) | 500 |
| magnetizability | available |
Chemical analysis of steel 17-4 PH:
| 17-4 PH | C | Si | Mn | P | S | Cr | Mo | Ni | V |
| min. | 15 | 3 | |||||||
| max. | 0,07 | 0,7 | 1,0 | 0,04 | 0,03 | 17,50 | 0,6 | 5 |
| 17-4 PH | Al | Cu | N | Nb | Ti |
| min. | 3,0 | 5xC | |||
| max. | 5,0 | 0,45 |
17-4 PH from stock:
flat, forged, solution annealed and annealed tempered
Benefits of sawn cuts of steel 17-4 PH:
Due to mechanical processing with the saw, the material structure shows much lower unintentional deformation and material hardening than, for example, oxyfuel cutting. Therefore, the already machined piece from the saw has a homogeneous structure at the edge, which remains unchanged in the further processing of the material. This circumstance allows for immediate finishing work with milling or drilling of the piece, without the need for additional annealing or similar processes.
Produced to highest standards
Quick delivery
From stock in Texas
Specialist for sawn steel blocks directly from stock USA
Karol Borycki
Our expert knowledge about 17-4 PH stainless steel
What is 17-4 PH stainless steel standard?
The standard for 17-4 PH stainless steel is typically ASTM A693.
What is the ASTM equivalent of 17-4 PH?
The ASTM equivalent grade for 17-4 PH is ASTM A564 Type 630.
How hard is 17-4 PH stainless steel?
The hardness of 17-4 stainless steel can vary depending on the heat treatment and aging process it undergoes. Typically, it can achieve a hardness range of approximately 35-45 HRC (Rockwell C scale) after heat treatment.
What phases are in 17 4 PH steel?
17-4 PH primarily consists of a martensitic phase (alpha prime) and a precipitation-hardening phase (delta or gamma prime) formed during aging heat treatments. These phases contribute to the material’s strength and hardness.
Is 17-4 PH stainless steel magnetic?
17-4 PH material is generally magnetic in all conditions due to its martensitic structure. However, its magnetic properties can be affected by factors such as heat treatment and aging processes.
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