Chemical composition 17-4PH, you need to first learn about the chemical composition, hardness, density and heat treatment properties of 17-4PH; let senior imports answer the dimensions of the various specifications of the 7-4PH plates/strings/bars/pipes/flanges/wires, as well as

2025/04/1119:14:34 news 1997

chemical composition

17-4PH, you need to first understand the chemical composition, hardness, density and heat treatment properties of 17-4PH; let senior imports answer the dimensions of the various specifications of the market 7-4PH sheets/strings/bars/pipes/flanges/wires, as well as process flow and even price analysis.

17-4PH high temperature alloy chemical composition

C: 0.04

Si: 0.60

Mn: 0.28

Cr: 16.0Mn: 0.28

Cr: 16.0

Ni: 4.25

Cu: 3.30

Fe: Surplus

Nb: 0.27

17-4PH is martensite precipitation hardened stainless steel. It has high strength, high hardness, good welding performance and corrosion resistance. It has been widely promoted and used in valves, shafts and chemical fiber industries and high-strength components with certain corrosion resistance requirements.

17-4PH characteristics and scope of use:

Precipitated hardened steel type added with copper. Used to manufacture shafts, steam turbines, components.

17-4PH mechanical properties:

Tensile strength σb (MPa): 480℃ aging, ≥1310; 550℃ aging, ≥1060; 580℃ aging, ≥1000; 620℃ aging, ≥930

Conditions Yield strength σ0.2 (MPa): 480℃ aging, ≥1180; 550℃ aging, ≥1000; 580℃ aging, ≥865; 620℃ aging, ≥725

elongation δ5 (%): 480℃ aging, ≥10; 550℃ aging, ≥12; 580℃ aging, ≥13; 620℃ aging, ≥16

cross-section shrinkage rate ψ (%): 480℃ aging, ≥40; 550℃ aging, ≥45; 580℃ aging, ≥45; 620℃ aging, ≥50

hardness: solid solution, ≤363HB and ≤38HRC; 480℃ aging, ≥375HB and ≥40HRC; 550℃ aging, ≥331HB and ≥35HRC; 580℃ aging, ≥302HB and ≥31HRC; 620℃ aging, ≥277HB and ≥28HRC

17-4PH heat treatment specifications and metallographic structure:

heat treatment specifications: 1) Solid solution 1020-1060℃ quick cooling; 2) 480℃ aging, after solid solution treatment, 470-490℃ air-cooled; 3) 550℃ aging, after solid solution treatment, 540-560℃ air-cooled; 4) 580℃ aging, after solid solution treatment, 570-590℃ air-cooled; 5) 620℃ aging, after solid solution treatment, 610-630℃ air-cooled.

17-4PH metallographic structure: the tissue characteristics are precipitation hardening type.

news

Fuse: On September 27, the state organized the bidding for centralized procurement of orthopedic spinal consumables with volume, and announced the results of the proposed selection. Judging from the implementation results of the national spine procurement, the decline is expected - DayDayNews

Fuse: On September 27, the state organized the bidding for centralized procurement of orthopedic spinal consumables with volume, and announced the results of the proposed selection. Judging from the implementation results of the national spine procurement, the decline is expected

The logic of V-reverse of Dabo Medical

04/16 1136

#Toutiao Creation Challenge#Fractals have been known for a century, well studied and have many applications in life. At the heart of this phenomenon, however, is a very simple idea: With the help of two operations - copy and scaling - you can get a graphic set of infinite beauty - DayDayNews

#Toutiao Creation Challenge#Fractals have been known for a century, well studied and have many applications in life. At the heart of this phenomenon, however, is a very simple idea: With the help of two operations - copy and scaling - you can get a graphic set of infinite beauty

How fractals work: Infinity and the beauty of mathematics

04/16 1446

At 16:00 on September 19, the city's fever clinic waiting information was broadcast: 1. 0 people were waiting for TEDA Hospital. 31. The number of sampling points opened by TEDA International Cardiovascular Disease Hospital - the total number of people waiting for the clinic - th - DayDayNews

At 16:00 on September 19, the city's fever clinic waiting information was broadcast: 1. 0 people were waiting for TEDA Hospital. 31. The number of sampling points opened by TEDA International Cardiovascular Disease Hospital - the total number of people waiting for the clinic - th

At 16:00 on September 19, Tianjin fever clinic and nucleic acid testing waiting information were broadcast regularly

04/16 1789

I think every Chinese person faces the national flag, national anthem, and national emblem, his heart must be filled with feelings of family and country and national justice. For 5,000 years, no matter how strong the wind and rain are, the Chinese nation has not fallen, and Chine - DayDayNews

I think every Chinese person faces the national flag, national anthem, and national emblem, his heart must be filled with feelings of family and country and national justice. For 5,000 years, no matter how strong the wind and rain are, the Chinese nation has not fallen, and Chine

Young people entering the new era write more exciting stories and create more extraordinary miracles

04/16 1427

Let’s study together happily to strengthen the country’s points in September. The Happy Account has not lost points, and finally broke through myself. It has not lost points for a month. It has been maintained for 55 days and has not lost points. I hope the record will continue. - DayDayNews

Let’s study together happily to strengthen the country’s points in September. The Happy Account has not lost points, and finally broke through myself. It has not lost points for a month. It has been maintained for 55 days and has not lost points. I hope the record will continue.

Studying to Strong Country in September Summary and October Outlook

04/16 1488

Artists are noble in our opinion, but everyone has their own subjective aesthetics. There are always people who express beautiful things into ugly states, which is not in line with the public's aesthetics. - DayDayNews

Artists are noble in our opinion, but everyone has their own subjective aesthetics. There are always people who express beautiful things into ugly states, which is not in line with the public's aesthetics.

The young man from Central America "slap" Fang Lijun in the face, and the carved image of Yuan Longping was praised, and netizens commented

04/16 1921

As part of our country's culture, the shroud culture also has many considerations in the historical development. This not only comes from respect for the deceased, but also a form of gratitude to the deceased. With the development of the times, the customs that have been passed d - DayDayNews

As part of our country's culture, the shroud culture also has many considerations in the historical development. This not only comes from respect for the deceased, but also a form of gratitude to the deceased. With the development of the times, the customs that have been passed d

Why don’t you have underwear? I’ve gained knowledge after reading it

04/16 1960

Before and after the patient's death, relatives must wear a funeral dress for the deceased. At this time, the shroud is not only a material clothing, but also a filial piety from relatives. There are also many considerations in the process of wearing shrouds. During the wear of a - DayDayNews

Before and after the patient's death, relatives must wear a funeral dress for the deceased. At this time, the shroud is not only a material clothing, but also a filial piety from relatives. There are also many considerations in the process of wearing shrouds. During the wear of a

Do you have to match your shrouds? Can you change your shrouds to leather shoes?

04/16 1381

At the end of life, no matter the rich or poor, there will be an end. In Chinese tradition, a unique set of funeral rituals and culture has been formed, and shrouds are an important part of it. According to folk traditional burial customs, there are many things to pay attention t - DayDayNews

At the end of life, no matter the rich or poor, there will be an end. In Chinese tradition, a unique set of funeral rituals and culture has been formed, and shrouds are an important part of it. According to folk traditional burial customs, there are many things to pay attention t

Why there are no bed sheets in the full set of shrouds? You must understand the three taboos

04/16 1661

Recently, many people criticized Professor Wen Tiejun on the Internet. They were neither exploring theories nor studying facts, or directly putting on hats and saying everything. Some people said that Professor Wen was ignorant, some people said that he instigated conflicts betwe - DayDayNews

Recently, many people criticized Professor Wen Tiejun on the Internet. They were neither exploring theories nor studying facts, or directly putting on hats and saying everything. Some people said that Professor Wen was ignorant, some people said that he instigated conflicts betwe

Wen Tiejun: I am used to being criticized and will accept all criticism with a smile

04/16 1166