AISI 630

aisi 630 / 17-4 ph Precipitation Hardening Martensitic Stainless Steel (marketing department of Shanghai HY Industry Co., Ltd)

aisi 630 / 17-4 ph precipitation hardening martensitic stainless steel. The alloy is characterized by high strength and good corrosion resistance, and the recommended operating temperature is below 300°C.

aisi 630 is a hardenable stainless steel. Through different heat treatments, different hardness can be obtained, and its tensile strength can reach up to 1100~1300MPa.

Of all hardenable stainless steels, AISI 630 has the best corrosion resistance. Its corrosion resistance is comparable to 304 in most environments and generally better than 400 series stainless steels. In petrochemical, food industry, papermaking and other industries, AISI 630 has the same corrosion resistance as 304L grade. In the marine environment, AISI 630 is easily corroded by seawater and is only suitable for offshore platforms.

Based on the above two characteristics, plus good welding performance, AISI 630 is usually used in occasions requiring good corrosion resistance and unusually high strength.

aisi 630 / 17-4 ph Grade comparison

Chinese

GB/T

20878-2007

05Cr17Ni4Cu4Nb

(原0Cr17Ni4Cu4Nb)

USA

AISI

AISI 630

ASTM

UNS

S17400

AK Steel

17-4 PH

Japan

JIS

SUS AISI 630

Germany

DIN

X5CrNiCuNb17-4

W.Nr.

1.4542

aisi 630 / 17-4 ph chemical composition(wt%)

牌号

05Cr17Ni4Cu4Nb

AISI 630

C

≤0.07

≤0.07

Si

≤1.00

≤1.00

Mn

≤1.00

≤1.00

P

≤0.040

≤0.040

S

≤0.030

≤0.030

Cr

15.00~17.50

15.00~17.00

Ni

3.00~5.00

3.00~5.00

Cu

3.00~5.00

3.00~5.00

Nb

0.15~0.45

Nb+Cb:0.15~0.45

aisi 630 / 17-4 ph Heat treatment (GB/T 1220-2007)

Heat treatment

RP0.2

(MPa)

Rm

(MPa)

A(%)

Z(%)

Hardness

HBW

HRC

Solution

≤363

≤38

precipitation hardening

480℃

aging

1180

1310

10

40

≥375

≥40

550℃

aging

1000

1070

12

45

≥331

≥35

580℃

aging

865

1000

13

45

≥302

≥31

620℃

aging

725

930

16

50

≥277

≥28

(American Standard’s heat treatment system is more finely graded:H900、H925、H1025H1075、H1100、H1150、H1150M、H1150D,Level 4 in blue corresponds to the above table)

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.

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