17-4PH, 1.4542, X5CrNiCuNb16-4

17-4PH, 1.4542, X5CrNiCuNb16-4 Stainless Steels to SAE AMS 5342E (2006)

17-4PH, 1.4542, X5CrNiCuNb16-4 - Specification & Application

• SAE AMS 5342E (2006) - Steel, Corrosion-Resistant, Investment Castings 16Cr - 4.1Ni - 0.28Cb (Nb) - 3.2Cu Homogenization, Solution, and Precipitation Heat Treated (H1100) 130 ksi (896 MPa) Tensile Strength (17-4)
• SAE AMS 5343E (2006) - Steel, Corrosion-Resistant, Investment Castings 16Cr - 4.1Ni - 0.28Cb (Nb) - 3.2Cu Homogenization, Solution, and Precipitation Heat Treated (H1000) 150 ksi (1034 MPa) Tensile Strength (17-4)
• SAE AMS 5344F (2007) - Steel, Corrosion-Resistant, Investment Castings 16Cr - 4.1Ni - 0.28Cb - 3.2Cu Homogenization, Solution, and Precipitation Heat Treated (H900) 180 ksi (1241 MPa) Tensile Strength (17-4)
• SAE AMS 5604G (2013) - Steel, Corrosion Resistant, Sheet, Strip, and Plate 16.5Cr - 4.0Ni - 4.0Cu - 0.30Cb Solution Heat Treated, Precipitation Hardenable
• SAE AMS 5622F (2013) - Steel, Corrosion-Resistant, Bars, Wire, Forgings, Tubing, and Rings 16Cr - 4.0Ni - 0.30Cb - 4.0Cu Solution Heat Treated, Precipitation Hardenable Consumable Electrode Remelted
• SAE AMS 5643/H1150 (2013) - Steel, Corrosion-Resistant, Bars, Wire, Forgings, Tubing and Rings 16Cr – 4.0Ni – 0.30Cb (Nb) – 4.0Cu Solution and Precipitation Heat Treated (H1150)
• SAE AMS 5643S (2013) - Steel, Corrosion-Resistant, Bars, Wire, Forgings, Tubing, and Rings 16Cr - 4.0Ni - 0.30Cb - 4.0Cu Solution Heat Treated, Precipitation Hardenable
• EN 10088-2 - Stainless steels. Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes

Steel, Corrosion-Resistant, Investment Castings 16Cr - 4.1Ni - 0.28Cb (Nb) - 3.2Cu Homogenization, Solution, and Precipitation Heat Treated (H1100) 130 ksi (896 MPa) Tensile Strength (17-4)

Chemical composition(wt.%) of 17-4PH, 1.4542, X5CrNiCuNb16-4 grade: to SAE AMS 5342E (2006)

Mechanical properties of grade 17-4PH, 1.4542, X5CrNiCuNb16-4 grade: to SAE AMS 5342E (2006)

Yield Strength,R_{p 0.2}(MPa)

Condition	Min	Max	Similar	Note
H900	1170
H925	1070
H1025	1000
H1075	860
H1100	795
H1150	725
H1150M	520
H1150D	725

Tensile Strength,R_m(MPa)

Condition	Min	Max	Similar	Note
H900	1310
H925	1170
H1025	1070
H1075	1000
H1100	965
H1150	930
H1150M	795
H1150D	860

Impact,Kv/Ku(J)

Condition	Min	Max	Similar	Note
H925	6.8			AKV 21℃
H1025	20			AKV 21℃
H1075	27			AKV 21℃
H1100	34			AKV 21℃
H1150	41			AKV 21℃
H1150M	75			AKV 21℃
H1150D	41			AKV 21℃

Elongation,A(%)

Condition	Min	Max	Similar	Note
H900	10
H925	10
H1025	12
H1075	13
H1100	14
H1150	16
H1150M	18
H1150D	16

Reduction of area,(%)

Condition	Min	Max	Similar	Note
H900	40
H925	44
H1025	45
H1075	45
H1100	45
H1150	50
H1150M	55
H1150D	50

Hardness

Condition	Type	Min	Max	Similar	Note
A	HRC	38
A	HB	363
H900	HRC	40
H900	HB	388
H925	HRC	38
H925	HB	375
H1025	HRC	35
H1025	HB	331
H1075	HB	311
H1075	HRC	32
H1100	HRC	31
H1100	HB	302
H1150	HRC	28
H1150	HB	277
H1150M	HRC	24
H1150M	HB	255
H1150D	HRC	24
H1150D	HB	255

Physical properties of grade 17-4PH, 1.4542, X5CrNiCuNb16-4 SAE AMS 5342E (2006)

Heat capacity, cp20℃	Note
500 J * kg-1 * K-1
Heat conductivity, λ	Note
16 W * m-1 * K-1
Modulus of elasticity, E	Note
200 GPa
Density	Note
7.85 g/cm3
Linear Expansion Factor, α20℃	Note
10.9 * 10-6 K-1

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Related properties

Heat treatment - Forging and rolling at 1150 - 900 ℃ with cooling in the air

Heat treatment - Annealing at 1020 - 1055 ℃ with cooling in oil or air

Heat treatment - Ageing for +P800 condition at 760 ℃ in the air for 2h + 620 ℃ in the air for 4h

17-4PH, 1.4542, X5CrNiCuNb16-4 - Detail

SAE AMS 5342E (2006) Steel, Corrosion-Resistant, Investment Castings 16Cr - 4.1Ni - 0.28Cb (Nb) - 3.2Cu Homogenization, Solution, and Precipitation Heat Treated (H1100) 130 ksi (896 MPa) Tensile Strength (17-4) Used typically for parts requiring good corrosion resistance and strength up to 315°C.

Application

17-4PH is one of the most popular and most commonly used stainless chromium-nickel alloy steels with copper additive, precipitation hardened with martensitic structure. It is characterized by high corrosion resistance while maintaining high strength properties, including hardness.Steel can operate in the temperature range from -29 ℃ to 343 ℃, while retaining relatively good parameters. In addition, the materials in this grade are characterized by relatively good ductility and their corrosion resistance is comparable to 1.4301 / X5CrNi18-10.