17-4PH 1025 Stainless Steel Sheet/Plate

1. Thickness:0.1mm - 80mm
Width:800mm - 2,000mm
Length:300mm - 12,000mm

2. Surface:2B/HL/NO.4/8K

3. Grades: 17-4PH 1025

4. PVC film: Novacel(laser cutting)
Nitto(deep drawing)

GAUGE REFERENCE [restabs alignment="osc-tabs-left" responsive="false"] [restab title="Product Overview" active="active"]

Alloy 17-4 is a chromium-copper precipitation hardening stainless steel that is used for applications requiring high strength and a moderate level of corrosion resistance. It is one of the most widely used precipitation hardening grades, as it has high strength hardness up to about 572°F while demonstrating good corrosion resistance in all heat treated conditions. Alloy 17-4 has adequate resistance to atmospheric corrosion or in diluted acid salts where its corrosion resistance is equivalent to Alloy 304 or 430. Alloy 17-4 can be heat treated to a variety of temperatures to develop a wide range of properties. Its mechanical properties can be optimized with heat treatment where very high yield strength up to 180 ksi can be achieved. Alloy 17-4 should not be used at temperatures above 572°F or at very low temperatures.


Weight% Cr Ni Cu Cb+Ta C Mn P S Si
17-4 (H1025) min: 15.0
max:0.07 max:1.0 max:0.04 0.03 max 1.00max


Hardening or Precipitation Treatment at 1150℉
Ultimate Tensile Strength (ksi min.) 0.2% Yield Strength (ksl min.) Elongation% in 2'' min Reduction in Area min.% Hardness, Rockwell, min./max Hardness, Brinell, min./max
Under 0.1875'' 185 170 8 - C38 363

(condition A)

Density( lbs/in3) 0.282
Electrical Resistivity, microhm-cm 98
Specific Heat, BTU/lb/℉(32-212℉) 0.11
Mean Coefficient of Thermal Expansion (in/in/℉)
-100 - 70℉ -
70-200℉ 6.0 x 10-6
70-400℉ 6.0 x 10-6
70-600℉ 6.2 x 10-6
70-800℉ 6.3 x 10-6
70-900℉ 9.68 x 103
Mudulus of Rigidty (ksi) 10.0x103
Poisson's Ratio (all conditions) -


Alloy 17-4 is commonly used for applications requiring high strength and a moderate level of corrosion resistance. Some applications that frequently use Alloy 17-4 include:

  • Aircraft
  • Nuclear waste casks
  • Paper mills
  • Oil fields
  • Mechanical components
  • Chemical process components
  • Food industry
  • Aerospace
[/restab] [restab title="Additional Properties"]


  • Corrosion Resistance:
    >>Withstands corrosive attacks better than any of the standard hardenable stainless steels.
    >>Comparable to Alloy 304 in most media.
    >>Corrosion resistant in some chemical, petroleum, dairy, and food process industries.
    >>Subject to crevice or pitting attack if exposed to stagnant sea water for any length of time.
  • Weldability:
    >>Successfully welded by most common fusion and resistance methods.
    >>Should not be joined by oxyacetylene welding.
    >>Generally no pre-heating required.
    >>Inter-pass temperature must be limited to 248°F.
    >>Better toughness is obtained in the weld after a complete heat treatment.
  • Elevated Temperature Use:
    >>Excellent resistance to oxidation to approximately 1100°F.
    >>Long-term exposure to elevated temperature can result in reduced toughness in the precipitation hardened conditions.
  • Processing – Hot Forming:
    >>To forge, heat uniformly to 2150 / 2200°F and hold for half hour per inch.
    >>Preferred temperature range for hot forming is at 650-900°F, while the steel is still austenitic.
    >>To ensure the best condition for the hardening operations, the forgings must be re-heat treated at 1875-1925°F.
    >>Cool forgings to below 90°F to ensure grain refinement.
  • Processing – Cold Forming:
    >>Alloy 17-4 is limited to mild operations since in the annealed (solution treated) condition the material is hard.
    >>For severe cold working the material should be heat treated to condition H1150. This will help prevent possible cracking.
    >>Bend radius in excess of 7T is often required.
    >>To improve stress corrosion resistance after cold forming, re-aging at the precipitation-hardening temperature is recommended.
  • Machinability:
    >>Can be machined in both solution-treated and precipitation-hardening conditions.
    >>Machining conditions may vary with hardness of material.
    >>High-speed tools or preferably carbide tools with standard lubrication are normally used.

[/restab] [restab title="Surface Finish"]

*Not all finishes are available in all alloys - (contact Yieh United Sales for more information)

#1 Finish Hot rolled, annealed and pickled.
#2D Finish A uniform, dull silver gray mill finish that is applied to thinner stainless steel coils,the thickness of which has been reduced by cold rolling.
#2B Finish A semi polished surface achieved by finishing with the equivalent of a 80 to 120 grit abrasive. This finish has a pronounced grit line.
#3 Finish A semi polished surface achieved by finishing with the equivalent of a 80 to 120 grit abrasive. This finish has a pronounced grit line.
#4 Finish Also called brushed, directional or satin finish. A is characterized by fine polishing grit lines that are uniform and directional in appearance. The final abrasive used in the process is 150 to 220 grit.
#4 Satin Brush Finish 150 to 180 grit finish A fine directional polish, typically used in the washroom accessories industry. Most 3.5″ floppy diskette cover plates have this finish.
#6 Finish Polished finish achieved with the equivalent of a 240 grit abrasive. Finer grit lines and higher reflectivity than a No. 4 finish.
#7 Finish Highly reflective surface obtained with the equivalent of a 320 grit abrasive. Minimal grit lines.
No. 8 or True #8 mirror This is the most reflective mirror finish on the market. All of the polishing, or “grit,” lines from the preliminary polishing operations are removed. The look is that of a glass mirror. Sometimes referred to as a non directional mirror finish, Super 8, No. 9, Perfect No. 10, and even No. 12 mirror.
CMP Super #8 mirror Chemical Mechanical Polished Super #8 mirror finished sheets are guaranteed to be free from any manufacturing defects. This product represents the ultimate in mirror polished stainless steel. It is available as a single-sided or double-sided mirror polished sheet.
Hairline finish 80 – 140 grit finish A well defined directional polish. Starting base substrate is a No. 4 finish sheet; these sheets are polished to provide a “continuous long grain” hairline look. A finish which is popular with architects for its aesthetic, it is equally popular with fabricators due to it’s ease of fabrication and finish matching properties after welding operations.
[/restab] [restab title="Innovative Technology"]


At Yieh United Corporation, we never stop improving and developing our technologies to go beyond our customer’s expectations. We strive towards these goals to produce reliable products and ensure they can be fully utilized throughout their lifetime.


[/restab] [restab title="Packing"]


Our 17-4PH 1025 stainless steel products are packed and labeled according to the regulations and customers’ requests.

stainless-steel-sheet-standardpackageNote: This is Yieh United Corporation’s standard seaworthy packing for stainless steel sheet metal.

stainless-steel-sheet-special-packageNote: This is Yieh United Corporation’s special packing for stainless steel sheet metal (Extra fee is needed).

[/restab] [restab title="FAQ"]


1. What is the minimum order quantity (MOQ)?
- Normally, the MOQ for our stainless steel sheet is 200 Kg. If we have any excess inventory of stainless steel sheet, there’s no MOQ requirement. You can ask us to check when you are interested in purchasing them.

2.What is the payment method?

- For new customers: 30%T/T deposit 70%T/T Before shipment.
– For partners and distributors, 30%T/T deposit 70% T/T Against B/L Copy.

3.What is the acceptable currency?
- We accept USD, EUR and RMB.

4.What is the delivery time?

- 5 days in advance.

5.Where is the loading port?
- Normally, our loading ports are Shanghai, Tianjin, and Shenzhen. You can choose anyone of them, or you can select the other ports.

6.What is the delivery term?

7.Do you offer free samples?

- Yes, based on our stock status, we will send our customer free samples. The express fee is to be paid by our customers.

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