precipitation hardening nickel alloy

GH4169 (GH169), NS4301, Inconel 718, N07718, NW7718, 2.4668 precipitation hardening nickel alloy (marketing department of Shanghai HY Industry Co., Ltd)

GH4169 (GH169), NS4301, Inconel 718, N07718, NW7718, 2.4668 is a precipitation hardening nickel alloy & high-temperature corrosion-resistant alloy

National Standards

Chinese

GB/T 14992-2005

GH4169

GB/T 14994-2008

GB/T 30566-2014

GJB 712A-2001

GJB 713-1989

HB 6702-1993

GB/T 15007-2017

NS4301

GB/T 26030-2010

NW7718

NiCr19Fe19Nb5Mo3

USA

ASTM B637-2006

UNS N07718

ASTM B670-2007

ASTM B983-2013a

Japan

JIS G7604:2000

NW7718

JIS G7605:2001

NiCr19Fe19Nb5Mo3

JIS G4901:1991

NCF718

JIS G4902:1991

Germany

DIN 17744:2002

NiCr19Fe19Nb5Mo3

DIN 17750:2002

2.4668

DIN 17752:2002

DIN 17753:2002

DIN EN 10088:1:2005

DIN EN 10302:2002

chemical composition(%)

Grade

GH4169

N07718

NW7718

2.4668

C

≤0.08

≤0.08

≤0.08

0.02~0.08

Si

≤0.35

≤0.35

≤0.40

≤0.35

Mn

≤0.35

≤0.35

≤0.40

≤0.35

P

≤0.015

≤0.015

≤0.015

≤0.015

S

≤0.015

≤0.015

≤0.015

≤0.015

Cr

17.0~21.0

17.0~21.0

17.0~21.0

17.0~21.0

Ni

50.0~55.0

50.0~55.0

50.0~55.0

50.0~55.0

Mo

2.80~3.30

2.80~3.30

2.80~3.30

2.80~3.30

Co

≤1.00

(≤1.00)

(≤1.50)

≤1.00

Fe

Bal.

Bal.

Bal.

Bal.

Nb

4.75~5.50

4.75~5.50

4.70~5.50

4.70~5.50

Ta

Al

0.20~0.80

0.20~0.80

0.20~0.80

0.30~0.70

Ti

0.65~1.15

0.65~1.15

0.60~1.20

0.60~1.20

Cu

≤0.30

≤0.30

≤0.30

≤0.30

Mg

≤0.01

≤0.01

≤0.01

≤0.01

B

≤0.006

≤0.006

≤0.006

≤0.006

 Commercial grade

Special Metals

INCONEL® alloy 718

VDM Metals

VDM® Alloy 718 CTP

Nicrofer 5219 Nb

Aperam

IMPHY 718

HAYNES

HAYNES® 718 alloy

CARPENTER

Pyromet® Alloy 718

ATI

ATI 718 ™

SANDVIK

Osprey® Alloy 718

physical properties
(GB/T 15007-2017)

density g/cm3

8.19

heat conductivity coefficient W/(m•℃)

11.4

specific heat J/(kg•℃)

435

Melting point range ℃

1260~1336

Average Linear Expansion Coefficient×10-6/℃ (25℃~100℃)

13

Young’s modulus GPa

200

 Mechanical behavior(GB/T 14994-2008)

heat treatment

solution treatment

950℃~980℃,1h

air cooling

Aging treatment

720℃,8h

50±10℃/h
Furnace cool to 620℃,8h

air cooling

mechanical property

Test temperature ℃

room temperature

≥650

tensile strength MPa

≥1270

≥1000

Specified non-proportional tensile strength MPa

≥1030

≥860

elongation %

≥12

≥12

reduction in area %

≥15

≥15

Hardness HBW

≥345

elevated temperature property

Test temperature ℃

650

Test stress MPa

690

time h

≥23

elongation %

≥4

Features

  1. High mechanical strength, with excellent mechanical properties in the temperature range of -253 to 700 ° C, it shows extremely high yield, tensile and creep rupture properties at high temperatures, and the yield strength below 650 ° C ranks first among deformed superalloys first place.

  2. High corrosion resistance, excellent resistance to stress corrosion cracking and pitting corrosion in chloride-containing medium, excellent resistance to stress corrosion cracking and sulfide stress cracking in acidic (containing H2S) oil field environment .

  3. Good processing performance, under the condition of solution annealing, the yield strength of the material is low, and the surface hardness is about HRC20 or HRA55, suitable for forging.

  4. Excellent welding performance.

Applications

GH4169 has good fatigue resistance, radiation resistance, oxidation resistance, corrosion resistance, and good processing and welding performance. It can manufacture various parts with complex shapes. It is an excellent alloy at a temperature of 650 ° C. It is mainly used in aerospace, Nuclear energy, petroleum industry, cryogenic engineering. Its most widely used is in the aviation field. Many parts of modern aero-engines, such as turbine discs, blades, casings, shafts, stators, seals, supports, pipes, fasteners, etc., are made of GH4169.

Shanghai HY Industry Co., Ltd has international first-class material production equipment such as high temperature alloy isothermal forging production line, CONSARC vacuum melting furnace, VAR vacuum arc remelting furnace etc., with strong professional ability and highly responsible management team. We are a member of China Application of nuclear energy materials, Member of the International Council of the Aeronautical Sciences. Years of experience in Corrosion Resistant Alloy & Superalloy. When you have superalloy material inquiry, please contact us without hesitation. Shanghai HY Industry Co., Ltd is Corrosion & fatigue nickel alloy professional manufacturer,We will provide you with sincere and thoughtful service.

When you want to know more about our products, please contact us:

https://hynickelalloy.com