17-4PH stainless steel plate 630 hot rolled plate 1500*6000 engineering plate 6-60mm.

‌17-4PH is a martensitic precipitation hardening stainless steel with high strength, high hardness and good corrosion resistance‌. Its main components include elements such as chromium (Cr: 15.0 - 17.5%), nickel (Ni: 3.0 - 5.0%), copper (Cu: 3.0 - 5.0%) and carbon (C: less than 0.07%), and the combination of these elements makes 17-4PH perform well in a variety of applications. ‌

Chemical composition and physical properties
17-4PH has a unique chemical composition, mainly including elements such as chromium (15.0 - 17.5%), nickel (3.0 - 5.0%), copper (3.0 - 5.0%) and carbon (≤ 0.07%). The combination of these elements makes 17-4PH not only have excellent corrosion resistance, but also can obtain ultra-high strength and hardness through precipitation hardening treatment. Its hardness value is 30~45 HRC, tensile strength ≥1100MPa, yield strength ≥1000MPa, and elongation ≥10%.

Application fields
17-4PH is widely used in many fields, including aerospace, chemical equipment, energy industry and medical equipment. In the aerospace industry, it is suitable for manufacturing important parts such as aircraft structural parts, engine parts and propeller shafts; in the field of chemical equipment, it can be used to manufacture pump housings, valves, reaction vessels and piping systems; in the energy industry, it is widely used to manufacture key components of oil and gas equipment; in the field of medical equipment, it can be used to manufacture surgical instruments, implants and medical equipment components.

Heat treatment process
The heat treatment process of 17-4PH has a great influence on its performance. The solution annealing temperature is 1010 - 1130℃, the quenching temperature is 1040 - 1090℃, and the tempering temperature is 480 - 620℃. By precisely controlling these heat treatment processes, the tensile strength of 17-4PH can reach about 1000 - 1100 MPa, the yield strength can reach about 965 - 1000 MPa, and the hardness can exceed HRC40.

The raw material is sent to the hot rolling unit for rolling into different sizes.
→ The hot rolled material is annealed in the cold rolling annealing furnace and pickled in acid.
→ After the first shift operation, all the rolls are ground on precision grinders and properly chamfered.
→ All the plates are soaked in different tanks and dried on brush roll machines before dispatching.
→ These plates are annealed again and sent to the straightening machine for straightening.
→ Inspection is carried out at different stages. Proper control of the entire in-house process is maintained by our experienced staff through rolling, annealing and pickling.

• Stainless Steel Series304,304L,321,316L,317L,309s,310s,904L,410,420,430,441,409,436,441,439,630 etc.
• Duplex stainless steel series 2205,2507  etc.
• Hastelloy C-276, B-2, C-2000, etc.
• Nickel-based alloy series Inconel625,718,Incoloy825,800H,Monel400, etc.
• High temperature alloy series GH4169, GH3625, GH3030, GH3044, GH2747, GH3128, GH4145, GH230, GH163, etc.
• Soft magnetic alloy series 1J85, 4J36, 4J29, 4J33, 1J50, 1J22, 1J85, etc.
• Copper-nickel alloy series NCu40-2-1 plates, tubes, bars, profiles and forgings.

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All employees of Jiangsu Zhonggong Special Metallurgical Technology Co., Ltd. are full of confidence. The company will pay more attention to talent introduction and technological innovation, always adhere to technological innovation and quality first, serve domestic and foreign users, keep pace with the times, and create brilliance together!