- 17-4PH Stainless Steel round bar
- 17-4PH Stainless Steel forging
- 17-4PH Stainless Steel sheet
- 17-4PH Stainless Steel flat bar
- 17-4PH Stainless Steel pipe
17-4PH Stainless Steel
Production specification
Square-shape steel: 1mm to 4000mm
Plate steel:0.1mm to 4000mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-1800mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.
We serve you with our honesty, integrity, and professionality.
17-4PH is a precipitation hardening martensitic stainless steel, which combines high strength and hardness (after heat treatment) wich excellent corrosion resistance, and is suitable for easy fabrication. |
TYPICAL ANALYSIS |
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C. |
Mn. |
P. |
S. |
Si. |
Cr. |
Ni. |
Cu. |
Nb.+Ta.. |
0.07% |
1.00% |
0.04% |
0.03% |
1.00% |
15.00- |
3.00- |
3.00- |
0.15- |
Solution Treatments.
As supplied 17-4PH is usuall in the solution treated condition (Condition A). It can be heat treated at different temperatures to offer a wide range of properties. (We also hold stock in H1150+H1150, and annealed block).
Condition |
Hardening |
Hardening |
Type of Cooling |
Hardness |
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|
Temperature |
Time |
|
Brinell |
Rockwell C |
A |
1038°C |
1/2 |
Oil/Air (to below 32°C) |
363 max. |
39 max. |
H900 |
480°C |
1 |
Air |
420 |
44 |
H925 |
495°C |
4 |
Air |
409 |
42 |
H1025 |
550°C |
4 |
Air |
352 |
38 |
H1075 |
580°C |
4 |
Air |
341 |
36 |
H1100 |
595°C |
4 |
Air |
332 |
35 |
H1150 |
621°C |
4 |
Air |
311 |
33 |
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Typical Mechanical Properties (longitudinal)
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Condition: |
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A |
H900 |
H925 |
H1025 |
H1075 |
H1100 |
H1150 |
H1150+ |
H1150M |
Tensile Strength |
1034 |
1380 |
1310 |
1170 |
1140 |
1035 |
1000 |
965 |
860 |
0.2% YS |
760 |
1275 |
1200 |
1140 |
1035 |
930 |
860 |
760 |
585 |
Reduction of Area |
30-60 |
50 |
54 |
56 |
58 |
58 |
60 |
60 |
68 |
Elongation |
6-15 |
14 |
14 |
15 |
16 |
17 |
19 |
20 |
22 |
Charpy Impact |
- |
20 |
34 |
47 |
54 |
61 |
68 |
108 |
135 |
Corrosion Resistance
17-4PH stainless steel has excellent corrosion resistance. Corrosion tests and service experience have shown that in all aged conditions it is superior to standard hardenable stainless grades such as 420, 431 and 410. Its corrosion resistance is comparable to grade 304 Stainless.
Welding
Arc and resistance welding processes used on standard grades of stainless steel are applicable to 17-4PH stainless steel. The low hardness enables sections, up to 100mm, to be welded without requiring pre heating.
Fabrication
17-4PH Condition is suitable for limited cold forming, H1100, H1150 and overaged conditions are more suitable when severe cold forming is required.
Machining
17-4PH Condition has machining characteristics similar to stainless grades 302, 304 and 410. The high hardness and strength in Condition H900 is the most difficult to machine and the material should be machined at 60% of the rate which is used for Condition A.
Nitriding
To increase the resistance to surface wear, with a slight decrease in corrosion resistance, 17-4PH stainless steel can be nitrided. An approximate hardness of 64/67HRc can be achieved, with a surface hardness depth of up to 0.15mm when nitrided at 540°C, while still maintaining a high core strength.
Mechanical properties
Heat treatment
Machining
Welding performance
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