About our products: China united iron and steel limited is a company specialized in mild steel plate, Stainless steel plates, Stainless welded pipe, and seamless stainless pipes. Our supply capacity per year is about 8,900,000 tons stainless plate/coil according to ASTM A240, ASME SA240, JIS, AISI, EN, AND Other special requirements from our customer.
Austenitic
The benefit of this grade is that it is an austenitic chromium-nickel steel alloy as well as the larger carbon content material distribute to increased tensile and yield energy. The materials is beneficial for utilizing in ASME pressure vessels in working service above 525° C because of the grade’s warmth resistant properties. Among the three, 304H has the very best carbon content, 304L has the bottom carbon content, and 304 chrome steel carbon content material is in the center. The larger the carbon content, the worse the corrosion resistance of chrome steel is, also easier to rust. The distinction in carbon content material also causes the worth to vary.
Stainless 304, 304h, 304l Forms Available
Super complete austenitic stainless steel, a super austenitic stainless steel invented by OUTOKUMPU, Finland, with a nickel mass fraction of 24% to 26%, a carbon mass fraction of less than 0.02%, and wonderful corrosion resistance. It has good corrosion resistance in non-oxidizing acids similar to sulfuric acid, acetic acid, formic acid and phosphoric acid, and has good resistance to crevice corrosion and stress corrosion. It is appropriate A240 304L Stainless steel plate for various concentrations of sulfuric acid under 70 °C. It is proof against corrosion in acetic acid and mixed acid of formic acid and acetic acid at any concentration and at any temperature under normal stress.
- Super full austenitic stainless-steel, an excellent austenitic stainless steel invented by OUTOKUMPU, Finland, with a nickel mass fraction of 24% to 26%, a carbon mass fraction of lower than zero.02%, and wonderful corrosion resistance.
- It is appropriate for numerous concentrations of sulfuric acid under 70 °C.
- It has good corrosion resistance in non-oxidizing acids such as sulfuric acid, acetic acid, formic acid and phosphoric acid, and has good resistance to crevice corrosion and stress corrosion.
304l, And 304h Stainless Steel
As we always stated, the applying is different, the requirements is different correspondingly. Among the three, the best carbon content material is 304H, and the bottom carbon content is 304L, while the 304 chrome steel has a carbon content between the two.
The unique standard ASMESB-625 is assessed as a nickel-based alloy, and the brand new commonplace classifies it as chrome steel. China only has the same grade 015Cr19Ni26Mo5Cu2 metal.
The key materials of a few European instrument producers use 904L stainless steel. For instance, the measuring tube of E+H mass flow meter uses 904L stainless steel, and the watch case of Rolex watch additionally adopts 904L chrome steel. Stainless Steel Grade 304H includes a high carbon content material making the steel extra suitable for utilization in purposes where excessive temperatures can be found.