Jiangsu Zhonggongte Metallurgical Technology Co., Ltd.
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17-4PH stainless steel plate SUS630 steel plate 1-60mm thickness density 7.78g/cm³ can be cut.
The main advantages of 17-4PH stainless steel plate include high strength, high hardness, good corrosion resistance and excellent mechanical properties. This stainless steel alloy is composed of chromium, nickel and copper, and also contains elements such as niobium. Its mechanical properties can be significantly improved through heat treatment, reaching a compressive strength of up to 1100-1300 MPa. 17-4PH stainless steel shows good corrosion resistance in a variety of environments, generally better than 400 series stainless steel and equivalent to 304 stainless steel.
Specific application scenarios
17-4PH stainless steel is widely used in many fields, including:
Aerospace: used to manufacture aircraft structural parts, engine components and propeller shafts, etc..
Chemical equipment: suitable for pump casings, valves, reaction vessels and piping systems.
Energy Industry: Key components for oil and gas equipment.
Medical Devices: Manufactures surgical instruments, implants and medical device components.
Processing and heat treatment
17-4PH stainless steel can be processed through a variety of processing techniques, including welding and machining. Its mechanical properties can be adjusted through heat treatment. Commonly used heat treatment methods include solution treatment and aging treatment. Solution treatment can improve its ductility and plasticity, while aging treatment can improve hardness and strength.
In summary, 17-4PH stainless steel has been widely used in multiple industrial fields due to its high strength, excellent corrosion resistance and adjustable mechanical properties.
Characteristics and Applications
●17-4PH Chemical Composition:
Carbon C: ≤0.010
Manganese Mn: ≤1.00
Silicon Si: ≤0.08
Chromium Cr: 15.00~17.50
Nickel Ni: 3.0~5.0
Phosphorus P: ≤0.04
Sulfur S: ≤0.03
Copper Cu: 3.0~5.0
Niobium + Tantalum Nb+Ta: 0.15~0.45
| P | S | C | |||
| 3.0~5.0 | 15.00~17.50 | 3.0~5.0 | |||
| 0.15~0.45 |
●17-4PH Mechanical Properties:
Tensile Strength σb (MPa): 480℃ aging, ≥1310; 550℃ aging, ≥1060; 580℃ aging, ≥1000; 620℃ aging, ≥930
Conditional Yield Strength σ0.2 (MPa): 480℃ aging, ≥1180; 550℃ aging, ≥1000; 580℃ aging, ≥865; 620℃ aging, ≥725
Elongation δ5 (%): 480℃ aging, ≥10; 550℃ aging, ≥12; 580℃ aging, ≥13; 620℃ aging, ≥16
Shrinkage ψ (%): 480℃ aging, ≥40; 550℃ aging, ≥45; 580℃ aging, ≥45; 620℃ aging, ≥50
Hardness: solution, ≤363HB and ≤38HRC; 480℃ aging, ≥375HB and ≥40HRC; 550℃ aging, ≥331HB and ≥35HRC; 580℃ aging, ≥302HB and ≥31HRC; 620℃ aging, ≥277HB and ≥28HRC
●17-4PH heat treatment specification and metallographic structure:
Heat treatment specification: (1) Solution treatment at 1020～1060℃ rapid cooling; (2) 480℃ aging, after solution treatment, 470～490℃ air cooling; (3) 550℃ aging, after solution treatment, 540～560℃ air cooling; (4) 580℃ aging, after solution treatment, 570～590℃ air cooling; (5) 620℃ aging, after solution treatment, 610～630℃ air cooling.
Metallographic structure: The structure is characterized by precipitation hardening.
●17-4PH delivery status: generally delivered in heat-treated state, the type of heat treatment is specified in the contract; if not specified, it is delivered in non-heat-treated state.
Note: ① Unless otherwise specified, the single value is the highest value; ② When used in certain pipe making processes, the nickel content of some types of austenitic stainless steel must be slightly higher than the value shown in the table; ③ Optional; ④ The maximum TA content is 0.10%; ⑤ The maximum content is 0.75%; ⑥ The maximum content is 0.70%
17-4PH alloy is a precipitation, hardening, martensitic stainless steel.
17-4PH alloy is a precipitation, hardening, martensitic stainless steel composed of copper, niobium/columbium.
This grade has high strength, hardness (up to 300℃/572℉) and corrosion resistance.
After heat treatment, the mechanical properties of the product are more perfect, and the compressive strength can reach up to 1100-1300 mpa (160-190 ksi).
This grade cannot be used above 300℃ (572℉) or at very low temperatures. It has good corrosion resistance to the atmosphere and dilute acids or salts. Its corrosion resistance is the same as 304 and 430.
17-4PH Applications:
· Offshore platforms, helicopter decks, other platforms
· Food industry
· Pulp and paper industry
· Aerospace (turbine blades)
· Mechanical parts
· Nuclear waste barrels