Written by admin on 11/21/2010 – 10:41 am
Chinese Stainless Steel Seamless Pipe Situation is Uping Wednesday, 25 Aug 2010According to Mr Bao Siwen of Mysteel, recently prices for seamless pipes presented an upward trend amid corrections in some areas, and most traders held an optimistic attitude towards the future market. While, market insiders believed that the pipe market would go smoothly in [...]
Written by admin on 11/14/2010 – 9:55 am
Avoid the oxidation of the welded parts in stainless steel The recommendation is use a pickling gel (or pickling paste) and let it work for a while to remove the oxides and the contamination aggravated during the process f welding, doing immediately a nice wash with water. This way, the oxidation problems will be avoided [...]
Written by admin on 11/02/2010 – 11:09 am
Chinese pipe manufactuers face import duties Chinese manufactuers of steel pipes such as Baofeng steel group will face import duties after the US Department of Commerce ruled in the favor of a complaint by US Steel Corp. Meanwhile, Argentina said it would extend the anti-dumping investigation period for steel pipe and fluorochloromethane imports from China, according [...]
Written by admin on 10/18/2010 – 11:24 am
Difference between 300 series and 400 series stainless steel The 300 series are the austenitic stainless steel, which are non-magnetic. The 400 series are the ferritic stainless steel, which are magnetic. The stainless steel from 400 series can be divided in two groups: the ferritic properly, which generally has a higher chrome and a lower [...]
Written by admin on 10/11/2010 – 11:16 am
Properties and corrosion resistence of Alloy 400 Alloy 400 (UNS N04400) is a ductile nickel-copper alloy with resistance to a variety of corrosive conditions. The alloy is most frequently specified in environments ranging from mildly oxidizing through neutral and in moderately reducing conditions. An additional application area of the material is in marine environments and [...]
Written by admin on 10/04/2010 – 4:30 pm
Is there any change of stainless steel’s mechanical properties in high temperature ? The carbon steel and the stainless steel both suffer a reduction in the values of their mechanical proprieties while working in high temperatures. As a matter of fact, this is an attribute of metals and metallic alloys in general. In common steel, [...]
Written by admin on 09/30/2010 – 3:05 pm
How to solve painting problems on stainless steel pipes When painting stainless steel pipe, people tend to have problems with paint adhesion. This is usually due to the metal not being properly prepared before applying the paint. There are many different techniques for prepping stainless steel tube for painting. Make sure the metal is thoroughly [...]
Written by admin on 09/21/2010 – 10:19 am
STAINLESS STEEL TUBE TO ASTM A269 DUTY Seamless or Welded Stainless Steel Tube for general Corrosion Resisting and Low or High Temperature service used mainly in the Liquid Processing and Food Industries. GRADES 304, 304L, 316 AND 316L SIZE RANGES ½” o/d – 4″ o/d TOLERANCES Permissible Variations in Dimensions Size Outside Diameter (in) Permissible [...]
Written by admin on 09/19/2010 – 9:43 am
Annealing The steel is heated to a temperature above or within the critical range, then cooled at a predetermined slow rate (usually in a furnace) to produce a coarse pearlite structure. This treatment is used to soften the steel for improved machinability; to improve or restore ductility for subsequent forming operations; or to eliminate the [...]
Written by admin on 09/16/2010 – 4:14 pm
Stainless steel is defined as a steel alloy with a minimum of 11.5 wt% chromium content.Stainless steel does not stain, corrode or rust as easily as ordinary steel (it “stains less”), but it is not stain-proof. It is also called corrosion resistant steel when the alloy type and grade are not detailed, particularly in the [...]
