Company
Product List
Offer to buy
Offer to sell
登入
加入會員
求助
Languages
English
繁體中文
簡體中文
Junfun International Trade Co.,Ltd
回首頁
公司簡介
產品櫥窗
影音視聽
寄出詢問函
聯絡我們
Recommended Results
ASTMA789 790 Duplex steel seamless and welded tube
產品分類 :
冶金礦產->鋼鐵類->鋼鐵
View Larger Picture
View Larger Picture
View Larger Picture
產品規格
Model No:
ASTMA789 790
Country
CN
Brand
JUNFUNSTEEL
產品描述
Introduction:
Called Duplex Pipe because of its mixed microstructure with about equal proportions of ferrite and austenite, duplex stainless steels are a family of grades, which range in corrosion performance depending on their alloy content. The chemical composition based on high contents of Cr and Mo, improves intergranular and pitting corrosion resistance, respectively. Additions of nitrogen can promote structural hardening by interstitial solid solution mechanism, which raises the yield strength and ultimate strength values without impairing toughness. Moreover, the two-phase microstructure guarantees higher resistance to pitting and stress corrosion cracking in comparison with conventional stainless steels.
Duplex is a stainless steel made from a mixture of austenite and ferrite phases. Like most austenitic stainless steels, duplex has a strong resistance to corrosion, similar to those of a Type 304 and 316.
Unlike similar steels, duplex also displays an improved resistance to localized corrosion, particularly pitting, crevice corrosion and stress corrosion cracking. And because duplex has a lower nickel and molybdenum content than other austenitic stainless steels, it can prove a more cost effective option due to a lower alloying content.
Due to its Ferritic qualities, duplex steel also shows very good resistance to stress corrosion cracking when compared to standard austenitic. In some cases, the strength of duplex steel can be up to double that of the most commonly used grades of stainless steel.
Duplex becomes brittle at extreme temperatures so its use is normally restricted to a maximum temperature of 300 degrees. Duplex also shows signs of embrittlement at -50 degrees.
Benefits:
Stronger than 300 series stainless steel which also brings weight advantages.
Cheaper than some stainless steels.
High resistance to pitting, crevice corrosion and stress corrosion cracking.
Higher heat conductivity and lower thermal expansion than austenitic steels.
Uses:
Pipes for production and transportation of oil and gas
Structural and mechanical components
Heat exchangers
Cooling pipes
Cargo vessels and containers
High strength wiring
[ Back Products Catalog ]
Commerce 會員:
請登入您的 帳號 跟 密碼, 系統將自動為您填入您的相關基本資料!
帳號:
密碼:
記住我的帳號
填寫下列表格並寄送詢問函.所有的詢問信函將會自動寄發給你想聯絡的公司
主旨
內容
﹙ 請勿輸入公司名稱、Email、電話、傳真、網址 ﹚
公司簡介:
*
公司名稱
*
E-mail
*
國家
Please Select Your Country
United States
Afghanistan
Albania
Algeria
American Samoa
Andorra
Angola
Anguilla
Antarctica
Antigua and Barbuda
Argentina
Armenia
Aruba
Australia
Austria
Azerbaidjan
Bahamas
Bahrain
Bangladesh
Barbados
Belarus
Belgium
Belize
Benin
Bermuda
Bhutan
Bolivia
Bosnia Herzegovina
Botswana
Bouvet Island
Brazil
British Indian Ocean Territory
Brunei Darussalam
Bulgaria
Burkina Faso
Burundi
Cambodia
Cameroon
Canada
Cape Verde
Cayman Islands
Central African Republic
Chad
Chile
China
Christmas Island
Cocos (Keeling) Islands
Colombia
Comoros
Congo
Cook Islands
Costa Rica
Croatia
Cuba
Cyprus
Czech Republic
Denmark
Djibouti
Dominica
Dominican Republic
East Timor
Ecuador
Egypt
El Salvador
Equatorial Guinea
Eritrea
Estonia
Ethiopia
Falkland Islands
Faroe Islands
Fiji
Finland
Former Czechoslovakia
Former USSR
France
France (European Territory)
French Guyana
French Southern Territories
Gabon
Gambia
Georgia
Germany
Ghana
Gibraltar
Great Britain
Greece
Greenland
Grenada
Guadeloupe (French)
Guam (USA)
Guatemala
Guinea
Guinea Bissau
Guyana
Haiti
Heard and McDonald Islands
Honduras
Hong Kong
Hungary
Iceland
India
Indonesia
Iran
Iraq
Ireland
Israel
Italy
Ivory Coast
Jamaica
Japan
Jordan
Kazakhstan
Kenya
Kiribati
Kuwait
Kyrgyzstan
Laos
Latvia
Lebanon
Lesotho
Liberia
Libya
Liechtenstein
Lithuania
Luxembourg
Macau
Macedonia
Madagascar
Malawi
Malaysia
Maldives
Mali
Malta
Marshall Islands
Martinique (French)
Mauritania
Mauritius
Mayotte
Mexico
Micronesia
Moldavia
Monaco
Mongolia
Montserrat
Morocco
Mozambique
Myanmar
Namibia
Nauru
Nepal
Netherlands
Netherlands Antilles
Neutral Zone
New Caledonia (French)
New Zealand
Nicaragua
Niger
Nigeria
Niue
Norfolk Island
North Korea
Northern Mariana Islands
Norway
Oman
Pakistan
Palau
Panama
Papua New Guinea
Paraguay
Peru
Philippines
Pitcairn Island
Poland
Polynesia (French)
Portugal
Puerto Rico
Qatar
Reunion (French)
Romania
Russian Federation
Rwanda
S. Georgia & S. Sandwich Isls.
Saint Helena
Saint Kitts & Nevis Anguilla
Saint Lucia
Saint Pierre and Miquelon
Saint Tome (Sao Tome) and Principe
Saint Vincent & Grenadines
Samoa
San Marino
Saudi Arabia
Senegal
Seychelles
Sierra Leone
Singapore
Slovak Republic
Slovenia
Solomon Islands
Somalia
South Africa
South Korea
Spain
Sri Lanka
Sudan
Suriname
Svalbard and Jan Mayen Islands
Swaziland
Sweden
Switzerland
Syria
Tajikistan
Taiwan
Tanzania
Thailand
Togo
Tokelau
Tonga
Trinidad and Tobago
Tunisia
Turkey
Turkmenistan
Turks and Caicos Islands
Tuvalu
Uganda
Ukraine
United Arab Emirates
United Kingdom
Uruguay
Uzbekistan
Vanuatu
Vatican City State
Venezuela
Vietnam
Virgin Islands (British)
Virgin Islands (USA)
Wallis and Futuna Islands
Western Sahara
Yemen
Yugoslavia
Zaire
Zambia
Zimbabwe
*
聯絡人
網址
*
電話
-
-
傳真
-
-
*
郵遞區號
*
城市
*
街道地址
*
企業形態
批發商
出口商
進口商
製造商
大盤商
零售商
代理商
Retrofitter
使用者
其他, 請詳細說明:
*
安全密碼
請輸入所顯示的安全密碼
網站導覽 l
隱私權政策 l
服務團隊 l
合作提案 l
聯絡我們 l
幫幫我 l
廣告刊登 l
B2B商業夥伴
.