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17-4Ph

 We are professional 17-4ph material factory from China

17-4ph is a precipitation hardening martensitic stainless steel. Typical usage is seen in applications requiring high strength and a modest level of corrosion resistance
We could supply 17-4ph Stainless Steel in following forms:
Forging:Forged Rings,Forged Pipes,Rolled Rings,Forging Sleeves,Forging Disks,Forged Bushings,Forging Sleeves,Forged Tube Sheets,Forged Shafts,Forged Valve Parts(Valve Bodies,Valve seat rings,valve bonnets),forgng tubing hanger,forged casing hangers and so on
Sheet,Plate,Strips,Coils
Bar:Round Bars,Square bars,flat bars,hollow bars,hex bars and so on
Pipe & Tube:Seamless tubes,seamless pipes,welded pipes,welded tubes,tubings,coiled tubes,U-bend Tubes.
Wire:welded wires,wire rods
fasteners, pump shafts,couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings
Flanges:in slip-ons,blinds,weld-necks,lapjoints,long welding necks,socket welds
Fasteners:bolts,screws,nuts,studs,Washers,Sockets,pins
Cnc Machining Parts,CNC turning parts,CNC Stamping parts
17-4 ph's chemical Composition is as follows:
 17-4 ph Composition(%)
 
Carbon 0.070 max
Chromium 15.00 - 17.50
Columbian + Tantalum 0.15 - 0.45
Copper 3.00 - 5.00
Manganese1.00 max
Nickel 3.00 - 5.00
Phosphorus 0.040 max
Silicon 1.00 max
Sulfur 0.030 max
 
Following is mechanical property of 17-4ph


Condition

 

A

H900

H925

H1025

H1075

H1100

H1150

H1150
+1150

H1150-M

 

Tensile Strength

N/mm2

1034

1380

1310

1170

1140

1035

1000

965

860

0.2% YS

N/mm2

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

J

-

20

34

47

54

61

68

108

13

                     
17-4ph is widely used in widely used in  used in industries such as offshore, marine, food, paper mills, oil field and aerospace. 17-4PH is used for components such as fasteners, couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings.
17-4PH stainless has very good corrosion resistance properties. Corrosion tests in service have shown good results in all aged conditions. With better corrosion resistance to standard hardenable stainless grades such as 431, 420 and 410. 17-4PH has corrosion resistance comparable to 304 stainless specification.
For increase resistance to surface wear, with a slight reduction in corrosion resistance, 17-4PH can be nitrided. When nitrided at 540ºC an approximate hardness of 64-67 HRc is achievable, with a surface hardness depth of up to 0.15mm. The steel maintains a high core strength.
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