core · product

Super stainless steel is a special type of stainless steel, which is different from ordinary stainless steel 304 in chemical composition. It refers to a high alloy stainless steel with high nickel, high chromium, and high molybdenum content. Secondly, in terms of high temperature or corrosion resistance, compared with 304, it has better high temperature or corrosion resistance, which is irreplaceable by 304. In addition, from the classification of stainless steel, the metallographic structure of special stainless steel is a stable austenite metallographic structure. In order to meet the demand for comprehensive corrosion resistance in harsh media in modern industrial development, the chromium, nickel, and molybdenum content of stainless steel pipes such as 304 and 316 were increased, and elements such as copper and silicon were added or residual impurities were reduced. Many new high alloy grades were also developed, such as 317LM (00Cr18Ni16Mo5) and 904L stainless steel (00Cr20Ni25Mo4.5Cu) containing about 4.5% Mo, as well as urea grade, nitric acid grade, and nuclear grade Austenitic stainless steel pipes of food grade and other types. According to statistics on the extensive corrosion damage forms of stainless steel pipes from 1962 to 1997, it can be seen that comprehensive corrosion and intergranular corrosion have significantly decreased from 1962 to 1971. However, from 1962 to 1997, local corrosion such as stress corrosion, pitting corrosion, interstitial corrosion, and corrosion fatigue still accounted for a relatively high proportion in corrosion damage. Among them, pitting corrosion and crevice corrosion still account for more than 20%, while stress corrosion and corrosion fatigue still account for more than 10%. Through research, it has been understood that increasing the nickel content in austenitic stainless steel pipes can significantly improve the stress corrosion resistance of steel, and increasing the chromium and molybdenum content can significantly improve the resistance to pitting and crevice corrosion of steel. Stress corrosion and corrosion fatigue usually originate from pitting and crevice corrosion. Therefore, people have begun to pay attention to the development of high alloy austenitic stainless steel with excellent resistance to pitting and crevice corrosion.

254SMo
  • 德国
  • 国内库存
  • 现货充足
Ingredients
  • 密度:8.24g/cm³
  • 熔点:1320~1390℃
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XM-12
  • 日本
  • 国内库存
  • 现货告急
Ingredients
  • 密度:7.78g/cm³
  • 熔点:1397~1453℃
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XM-13
  • 日本
  • 国内库存
  • 现货告急
Ingredients
  • 密度:7.80g/cm³
  • 熔点:1415~1450℃
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RA330
  • 美国
  • 国内库存
  • 现货告急
Ingredients
  • 密度:8g/cm³
  • 熔点:1318~1427℃
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254SMo
  • 德国
  • 国内库存
  • 现货充足
Ingredients
  • 密度:8.24g/cm³
  • 熔点:1320~1390℃
查看更多>>
XM-12
  • 日本
  • 国内库存
  • 现货告急
Ingredients
  • 密度:7.78g/cm³
  • 熔点:1397~1453℃
查看更多>>
XM-13
  • 日本
  • 国内库存
  • 现货告急
Ingredients
  • 密度:7.80g/cm³
  • 熔点:1415~1450℃
查看更多>>
RA330
  • 美国
  • 国内库存
  • 现货告急
Ingredients
  • 密度:8g/cm³
  • 熔点:1318~1427℃
查看更多>>
A brand new benchmark enterprise in the field of metal circulation
Shanghai Nanling Industrial Co., Ltd

Shanghai Nanling Industrial is mainly engaged in the import and export of various high-end steel products, and is a brand enterprise in the field of metal circulation.

The company is headquartered in Shanghai and is one of the well-known steel service providers in China。

We have extensive business dealings with major steel mills in Europe, America, Japan, and other countries, supplying nickel based alloys, nickel cobalt based heat-resistant alloys, high corrosion resistant alloys, super austenitic stainless steel, titanium and titanium alloys, pure nickel and other special alloy materials year-round. All products of the company are supplied according to DIN/EN, American ASTM/ASME, German DIN, Japanese JIS and other standards, and can be supplied according to the standards and technical requirements provided by customers. The available product forms include plates, strips, pipes (seamless and welded pipes), bars, forgings, fittings, flanges, and welding materials.

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20Billion

Operating income close to

500family

Renowned enterprises provide complete supply chain services

10family

Holding subsidiary

1000staff

Employees with dreams

Pohang Iron and Steel Group Co., Ltd
Pohang Iron and Steel Co. Ltd, also known as POSCO, was founded in 1968 and is one of the world\'s largest steel manufacturers. It provides over 26 million tons of steel products to users in over 60 countries worldwide each year.
钢厂专利牌号
7050、7075、6061、5052、2219... 更多材料>>
钢厂图片
 
 

Contact · us

Shanghai Nanling Industrial Co., Ltd


Address: Building A, Building 1, No. 5666 Shenzhuan Road, Songjiang District, Shanghai
Phone: 021-67652803
Mobile phone: 137 6165 6969 (WeChat same number)


(Working hours Monday Saturday 8:30-17:30)