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Article Archive Dec. 2010

Dandong Foundry is a professional Iron Casting Manufacturer in China. We share some standards and experiences in our blog,
and truly hope these information could help buyers to better understand some technical issues related with iron and steel castings.

  1. Cast Iron Ductile Iron - on Dec 31, 2010
    Some buyers may wonder the relations of cast iron and ductile iron. So, what is cast iron? Cast iron should be a kind of metal, or specific iron casting part. Iron foundry melts the pig iron into hot liquid iron, and pour it into various heat-resistant molds, then get cast iron parts, or called iron castings.
  2. Iron Foundry - on Dec 30, 2010
    Iron foundry is the metal foundry mainly producing iron castings. There are thousands of iron foundries in China. Herein, I will talk about some main aspects about the iron foundry in China.
  3. Cast Iron and Cast Steel - on Dec 30, 2010
    Dandong Foundry has produced cast iron and cast steel for over 50 years. After I joined this company, I started to learn about some about iron and steel castings, and start to write some articles to share our experiences.
  4. Ductile and Malleable - on Dec 29, 2010
    Some buyers are confused about the ductile and malleable cast iron. Actually, I was confused about these concepts for long time. I just knew that our Dandong Foundry could produce the ductile iron, but can not produce malleable iron. As for what is malleable cast iron, I never made it clear, but herein, I will talk about these two definitions.
  5. GB T 9439 - 1998 Standard for Grey Cast Iron - on Dec 27, 2010
    This is a Chinese standard for stipulating the physical properties of grey cast iron, or called as gray iron. This standard is similar with the other standards for grey iron such as ASTM A48 in USA, DIN 1691 in Germany and ISO 185. The following is the main content of GB/T 9439-1998 standard for your reference.
  6. NF A32 - 201 1997 Standard for Ductile Cast Iron - on Dec 27, 2010
    We met the FGS degrees from Franch and Italy clients, but it is very difficult to find the standard NF A32-201 from internet. We found they are similar with China standard GB T1348 1998, so we modified the GB T1348 into NF A32 - 201 1997 according to our understanding.
  7. DIN 1693 1997 Standard for Ductile Iron - on Dec 27, 2010
    This is a Germany standard for stipulating the physical properties of ductile iron. Many iron foundries in China could understand this standard very well. This standard is similar with the other standards for nodular iron such as ASTM A536 in USA, GB T1348 in China, KS D4302 in Korea and ISO 1083.
  8. KS D4302 1994 Standard for Nodular Iron - on Dec 27, 2010
    This standard is for stipulating the physical properties of nodular iron, which is also called as ductile iron. This is a Korea standard, but this standard was similar with the other standards for nodular iron such as ASTM A536 in USA and GB T1348 in China.
  9. GB T 1348 1998 Standard for Ductile Cast Iron - on Dec 27, 2010
    This standard is for stipulating the physical properties of ductile cast iron. In China, the engineers in iron foundries are using it as the inspection standard. This standard was developed from the ISO 1083 and ASTM A536.
  10. ISO 1083 1987 Standard for Ductile Iron - on Dec 27, 2010
    ISO 1083 1987 defines the grades and the corresponding requirements for spheroidal graphite cast iron, which is also called as ductile iron or nodular iron. The latest version of this standard is ISO 1083 2004, however, the main content was not changed since version 1987.
  11. JIS G5502 1995 Standard for Ductile Iron - on Dec 27, 2010
    This is a Japanese industrial standard specifies the physical properties of spheroidal graphite iron castings, which are also called as ductile iron. The latest version is JIS G5502 2001. However, the main content was not changed.
  12. BS 2789 1985 Standard for Nodular Iron - on Dec 27, 2010
    This is a UK standard for stipulating the physical properties of nodular iron, which is also called as ductile iron, spheroidal graphite or nodular graphite cast iron, This standard has been replaced by BS EN 1563 1997.
  13. NF A32 - 101 Standard for Grey Iron - on Dec 27, 2010
    We met the FGL degrees from Franch and Italy clients, but it is very difficult to find the standard NF A32-101 from internet. We found they are similar with China standard GB T9439 - 1998, so we modified the GB T9439 - 1998 into NF A32 - 101 1997 according to our understanding.
  14. KS D4301 - 1985 Standard for Gray Cast Iron - on Dec 27, 2010
    This is a Korea standard for stipulating the physical properties of gray cast iron, or called as grey iron. This standard is similar with the other standards for gray iron such as ASTM A48 in USA, DIN 1691 in Germany and ISO 185.
  15. Gas Burner - on Dec 23, 2010
    Gas burner is also called as stove burner or gas stove burner. We have produced gas burners for years in China, so always wanted to write an article for burner buyers to learn about all issues related with gas burners.
  16. Casting - on Dec 22, 2010
    I have worked for years in iron and steel casting area, so always wanted to write an article to introduce all aspects for iron and steel casting, and hope this article could help casting purchasers to quickly understand all main issues about castings.
  17. Nodular Iron - on Dec 21, 2010
    Nodular iron is also called nodular cast iron, ductile iron and spheroidal graphite cast iron.
  18. Grey Cast Iron - on Dec 21, 2010
    The tensile strength of grey cast iron, plastic and toughness are much lower than cast steel, but it has a considerable compressive strength as same as cast steel, cast iron is also commonly used in the worst mechanical properties.
  19. JIS G5501 for Grey Iron - on Dec 20, 2010
    JIS G5501 1995 standard is a Japan Standard for grey iron. This standard has stipulated the tensile strength and hardness of grey cast iron. Herein, we listed the main content of this standard for your reference.
  20. DIN 1691 for Grey Iron - on Dec 20, 2010
    DIN 1691 - 1985 is an old standard for grey iron, however, many designers are still using it as the standard for the tensile strength and hardness of grey cast iron. So, herein, we listed the main content of this standard for your reference.
  21. ISO 185 for Gray Cast Iron - on Dec 20, 2010
    ISO 185 is a standard for gray cast iron. It includes the tensile strength and hardness of gray iron. This standard can be a good reference for designers, buyers and suppliers to gray iron castings.
  22. Small Cast Door - Dec 19, 2010
    Small cast door is the small doors made by cast iron, which was also called as small casting door, stove casting door or cast iron door.
  23. Hydraulic Warping Head GR220 - on Dec 16, 2010
    Hydraulic warping head is used for the hydraulic capstan in tugboats. The material is mainly grey cast iron BS1452 GR220.
  24. Bearing Housing Casting - on Dec 16, 2010
    Bearing housing can be made by made by cast iron, some are by cast steel, forged steel, stainless steel, aluminum and even by plastic.
  25. Cast Iron Flange - on Dec 11, 2010
    How to purchase cast iron flange in China? Cast iron flange means the flange plate made by cast iron. Actually, not all flanges were made by cast iron, many flanges were made by forged steel.
  26. Ductile Iron Manhole Cover - on Dec 09, 2010
    Ductile iron manhole cover means the manhole covers made by ductile iron, not by gray iron. The buyers choose the ductile iron to get better tensile strength.
  27. DIN 1683 - 1 Rough Steel Casting Tolerance Standard - on Dec 08, 2010
    DIN 1683-1 is a general tolerance standard for rough steel castings. Our Dandong Foundry found this standard is useful to the buyers and suppliers.
  28. The treatments to rough castings - on Dec 08, 2010
    When we get the rough castings, we need to do some treatments to improve or inspect the casting quality. These treatments include heat treatment, anti-rust treatment, rough machinating, repairing etc.
  29. How to inspect the quality of iron castings (Part 2) - on Dec 06, 2010
    In the previous article, we have talked about some main aspects of inspecting iron castings, such as dimensions, tensile strength, hardness, surface and inside defects, herein, we continue to talk about some other aspects including yield strength, elongation, chemical components, compact property.
  30. Grey Iron Framework - on Dec 05, 2010
    One friend asked some questions about grey iron framework, I shared some useful information about the casting process and technical issues to this product, and hope these information will be helpful to the other buyers.
  31. How to inspect the quality of iron castings - on Dec 03, 2010
    Many buyers are not familiar with the inspection to iron castings, so they have no idea how to inspect and control the quality of their products.
  32. Tensile Test Specimen - on Dec 2, 2010
    Tensile test specimen is also called tensile test bar, which is used to test the tensile strength, yield strength and elongation for the cast iron and cast steel materials. It is the most important test method to iron and steel castings.

 

 

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