PROVIDING DUPLEX AND SUPER DUPLEX STEEL PRODUCTS SINCE 1975

17-4 PH Stainless Steel Material UNS S17400, AMS 5643, ASTM A564, ASTM A693 Grade 630 Manufacturer and Supplier in India

Duplex Steel & Alloys proudly stands as India's premier manufacturer and supplier of 17-4 PH Products. Our commitment to excellence shines through in every facet of our 17-4 PH stainless steel product line, meticulously crafted to meet and exceed international quality standards.

With over 25 years of industry experience and the prestigious ISO 9001:2008 certification, we have solidified our position in the Metal Market as a trusted name. We continually strive to provide our valued customers with unparalleled value, offering competitive prices on 17-4 PH stainless steel products while maintaining a comprehensive inventory of standard sizes and types, ready to ship worldwide delivery.

Our diverse range of 17-4 PH and other high-quality materials is purposefully engineered to cater to a wide spectrum of piping applications across various sectors, including Chemical, Petrochemical, Building, Construction, and beyond. We don't just supply products, we deliver solutions that endure and perform flawlessly.

What Is 17-4 Stainless Steel?

17-4 stainless steel, often referred to as SAE Type 630, is a versatile alloy comprised of approximately 17% chromium and 4% nickel. This specific blend of elements renders it exceptionally well-suited for applications in industries such as gas, chemical, and aviation, particularly in high-temperature environments where it can withstand temperatures of up to 600 ℉ (316°C).

What sets 17-4 stainless steel apart is its remarkable combination of properties? It boasts outstanding resistance to corrosion, making it highly durable in various conditions. Additionally, it exhibits impressive mechanical properties, toughness, and strength. This alloy stands out for its superior formability and weldability compared to other stainless steel grades.

Stainless Steel 17-4PH Properties

Grade 17-4 is the most widely used martensitic precipitation hardenable (PH) alloy. It boasts an exceptional blend of attributes, including high strength, excellent mechanical performance at temperatures up to 600°F (316°C), and the ability to undergo brief, low-temperature heat treatments without warping or scaling issues.

Notably, 17-4 PH stainless steel exhibits impressive corrosion resistance, formability, and weldability, making it a top choice for various applications. From aerospace to petrochemical and structural contexts, its versatility shines. Also, 17-4 PH stainless steel hardness properties, which can be precisely tailored through heat treatment processes. In its aged condition, it typically exhibits a hardness range of approximately 28 to 45 HRC (Rockwell C hardness scale).

However, it's worth noting that 17-4ph retains its high mechanical properties in its annealed state, which can pose challenges in certain forming operations due to its inherent strength.


Types of Stainless Steel 17-4 PH Products

Benefits of 17-4 Stainless Steel

17-4 Steel, also known as 17-4 PH stainless steel, offers a wide range of advantages across various industries, such as manufacturing and chemical processing. Its unique properties make it a sought-after material in numerous applications. Let's explore these benefits in more detail:

Tailored Solutions:

One of the standout features of 17-4 steel is its high level of customizability. This versatility makes it an excellent choice for diverse applications, from aerospace components to food processing equipment. Engineers and manufacturers can adjust its composition to meet specific performance requirements.

Exceptional Strength

17-4 steel boasts remarkable strength, with a yield strength that can reach up to 1100-1300 MPa (160-190 ksi). This high level of strength ensures the material can withstand heavy loads and resist deformation, making it indispensable in applications where structural integrity is crucial.

Formability and Weldability

Another advantage of 17-4 PH stainless steel is its excellent formability and weldability. It can be seamlessly incorporated into various fabrication processes, including shielded fusion and resistance welding, allowing for the creation of complex and precise components.

Corrosion Resistance 

17-4 PH stainless steel excels in resisting corrosive attacks, outperforming many standard hardenable stainless steel alloys. This corrosion resistance makes it a top choice for industries such as food processing, aerospace, oil and gas, and chemical processing, where exposure to corrosive substances is common.

Temperature Stability:

This alloy maintains its superior toughness and strength across a wide temperature range. Its low thermal expansion rate is particularly valuable in applications requiring stable dimensions, such as motor laminations and cores.

Durability in Extreme Environments

 17-4 stainless steel's exceptional performance in harsh conditions makes it a preferred material for applications demanding durability. It thrives in extreme environments, ensuring longevity and reliability.

Radioactive Storage

Thanks to its corrosion resistance, 17-4 PH steel can be employed to construct buildings for radioactive material storage. Its strength and resistance properties provide a robust shield against potential hazards, contributing to safety in such critical facilities.

17-4 PH Steel Applications

17-4 PH stainless steel, renowned for its exceptional strength, corrosion resistance, and versatility, finds many applications across various industries. In aerospace, the 17-4 PH Plate is extensively employed in manufacturing critical aircraft components due to its high strength and lightweight properties, ensuring safety and reliability. 

Moving on to the construction and architecture realm, this stainless steel alloy is utilized in structural elements, offering durability and corrosion resistance, especially in harsh outdoor environments. For industries requiring precision, 17-4 PH Bars are popular, delivering excellent machinability and dimensional stability in applications such as medical instruments and precision machinery. 

Additionally, in demanding and corrosive environments, 17-4 PH Fasteners are crucial, offering dependable connections and longevity, making them indispensable in offshore drilling rigs and marine equipment. With its versatility and remarkable properties, 17-4 PH stainless steel continues to contribute significantly to the success of numerous industries.

How does 17-4 Stainless Steel Compare to Other Metals?

While 17-4 stainless steel is undoubtedly a viable option, it's worth considering that Premium Alloys offers a diverse range of materials tailored to your specific needs. Let's delve into a comparison of stainless steel with our array of alternative materials to help you make an informed choice for your project.

17-4 Stainless Steel vs 304

17-4 PH stainless steel stands as a robust choice for coastal and marine settings due to its superior resistance to chloride-induced stress corrosion cracking (SCC). Conversely, 304 stainless steel excels in combating general corrosion issues like oxidation, pitting, and crevice corrosion. Each alloy finds its niche in specific environmental challenges.

17-4 Stainless Steel vs 316

316 stainless steel is a typical austenitic stainless steel casting grade, whereas 17-4 PH stainless steel is a precipitation-hardening material grade. Both of these grades are defined by American standards. When comparing Stainless Steel 17-4 PH to 316 for casting, it becomes evident that 17-4 PH has a higher hardening content.

17-4 Stainless Steel vs 416

17-4 stainless steel is a precipitation-hardening alloy with better corrosion resistance and toughness than 416 stainless steel, which is a free-machining martensitic alloy. 17-4 offers higher strength and versatility but may cost more. 416 is easier to machine but has lower corrosion resistance and strength. Choice depends on specific needs.

Stainless Steel 17-4 PH Equivalent Material

DIN ASTM EN UNS AFNOR CNU GB
1.4542 Grade 630(AMS 5604B) X5CrNiCuNb 16-4 S17400 Z6CNU1704 17-4PH 0Cr17Ni4Cu4Nb

Alloy 17-4 PH Precipitation Hardening, UNS S17400, 17-4 PH Material, 17-4 PH Stainless Steel Density, 17-4 PH H1150, Precipitation Hardening Stainless Steel, 17-4 Ph Stainless Steel Chemical Composition.

If you are looking for best prices for Stainless Steel 17-4 PH, SS 17-4 PH Material email us on info@duplexsteelalloys.com or call us on +91 9664408767

17-4 PH Stainless Steel ASTM Grades

Sheet / Plate Fasteners Bars
ASTM A693 ASTM A564 ASTM A564 / AMS 5643

17-4PH Stainless Steel Chemical Composition

Weight % C Si Mn S P Cr Ni Cu Nb+Ta
Min.  15,00  3,00  3,00  0,15
Max.  0,070  1,00  1,00 0,030  0,040  17,50  5,00  5,00  0,45

17-4PH Stainless Steel Mechanical Properties

Condition Yield strength Rp0.2,
MPa
Tensile strength Rm,
MPa
Elongation
[%]
Hardness
[HB]
Impact, Charpy-V, -32ºC
[J]
Pre
H 900  ≥ 1170  ≥ 1310  ≥ 8  ≤ 440  ≥ 17
H 1075  ≥ 860  ≥ 1000  ≥ 10  ≤ 375  ≥ 27  ≥ 17
H 1150  ≥ 725  ≥ 930  ≥ 16  ≤ 352  ≥ 27  ≥ 17
DH 1150  ≥ 725  ≥ 860  ≥ 16  ≤ 311  ≥ 27  ≥ 17

Stainless Steel 17-4 PH Physical Property

Condition Tensile Yield Enlongation Reduction of Area Hardness
H900 190KSI 170KSI 10% 35% 35 HRC
H1025 155KSI 145KSI 12% 45% 40 HRC
H1075 145 125 13 45 33-39 HRC
H1150 135 105 16 50 28-37 HRC
H1150D 125 105 16 50 25-33 HRC

Thermal Conductivity

Temperature Range
°C °F W/m·K Btu/(hr/ft²/in/°F)
149 300 17.9 124
260 500 19.5 135
460 860 22.5 156
482 900 22.6 157

Specific Heat

Temperature Range
°C °F J/gg·K Btu/lb/°F
0-100 32-212 460 0.11

Contact Duplex Steel & Alloys Today

Request a Quote for the 17-4PH Stainless Steel you need. Contact Duplex Steel & Alloys to place your order or for more information.