17-4PH

Characteristics

17-4PH is a precipitation hardening stainless steel with combustion resistance and corrosion resistance equivalent to SUS304, and high strength and hardness can be obtained by subjecting it to heat treatment. Because the aging process of 17-4PH can be conducted at low temperatures, no large strain is likely to result, thus being used for applications such as a long shaft.

Density7.78

Stock Form and Sizes

◆1000mm ◎2000mm ▲3000mm ■3500mm ●4000mm ★2500mm~3990mm

17-4PHPeeled round bars(ST)Specification:ASTM A564、ASME SA564、AMS 5643
size 10〜27
101213141516171819202224252627

(h9)

(h9)

(h9)
        
size 28〜55
283032333536384042444546485055
         
size 60〜160
6065707580859095100110120130140150160
    
135
 
size 170〜200
170180190200           
             
17-4PHPeeled round bars(H1025)Specification:ASTM A564、ASME SA564、AMS 5643
size 10〜27
101213141516171819202224252627
           
size 28〜55
283032333536384042444546485055
         
size 60〜160
6065707580859095100110120130140150160
         
size 170〜200
170180190200           
               

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Chemical composition

 NiCrFeCMnSiCoPSMoCuNNbTaNb+TaWVother
min3.0015.00        3.00 0.15     
max5.0017.50 0.071.001.00 0.0400.030 5.00 0.45     

※Above is standard values of ASTM A564. For further information, please contact us.

Mechanical properties

17-4PH A
 Tensile Strength Mpa0.2% Yield Strength MpaElongation %Reduction of Area %Hardness
min     
max    HB363
17-4PH H900 Below 3″(76.2mm)
 Tensile Strength Mpa0.2% Yield Strength MpaElongation %Reduction of Area %Hardness
min131011701040HB388
max     
17-4PH H900 76.2~203.2㎜
 Tensile Strength Mpa0.2% Yield Strength MpaElongation %Reduction of Area %Hardness
min131011701035HB388
max     
17-4PH H1025 Below 8″(203.2mm)
 Tensile Strength Mpa0.2% Yield Strength MpaElongation %Reduction of Area %Hardness
min107010001245HB331
max     
17-4PH H1075 Below 8″(203.2mm)
 Tensile Strength Mpa0.2% Yield Strength MpaElongation %Reduction of Area %Hardness
min10008601345HB311
max     
17-4PH H1150
 Tensile Strength Mpa0.2% Yield Strength MpaElongation %Reduction of Area %Hardness
min9307251650HB277
max     
17-4PH H1150D
 Tensile Strength Mpa0.2% Yield Strength MpaElongation %Reduction of Area %Hardness
min8607251650HB255
max    HB311

※Above is standard values of ASTM A564. For further information, please contact us.

International Specification Comparison chart

 MaterialRound barsPlates/SheetsPipes/Tubes
SeamlessWelded
JISSUS630G4303/G4318G4304/G4305  
ASTMS17400A564A693  
ASMES17400SA546SA693  
DIN/EN1.4542    

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