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
| Ni | Cr | P | S | Cu | C |
| 3.0~5.0 | 15.00~17.50 | ≤0.04 | ≤0.03 | 3.0~5.0 | ≤0.010 |
| Si | Mn | Nb+Ta | | | |
| ≤0.08 | ≤1.0 | 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
