The steel plate and iron plate produced by the steel plate manufacturer are resistant to burning.
The difference between the steel plate produced by the steel plate seller and the iron plate should be distinguished as follows: industrial pure iron, steel, pig iron are all FERROCARBON alloys, but their carbon content is different. Metallography considers that iron-carbon alloy with W [c] < 0.0218% is industrial pure iron, 0.0218% < w [c] < 2.11% is steel, and w [C] < 2.11% is pig iron. But in practical application, steel is the main element of iron, carbon content is generally less than 2%, and contains other elements of materials collectively.
Iron is divided into pig iron and wrought iron. Wrought iron, steel and pig iron are all iron carbon alloys, which are distinguished by the amount of carbon. Generally, the carbon content is less than 0.2% called wrought iron or pure iron, content in 0.2-1.7% called steel, content in more than 1.7% called pig iron. Porcelain iron is soft, plasticity is good, easy to deform, strength and hardness are low, the use is not wide; pig iron contains a lot of carbon, hard and brittle, almost no plasticity; steel has pig iron and iron two advantages, widely used for mankind.
309S, 310S stainless steel sheet can be continuously operated at 1000 C with good high temperature resistance.

If the budget is adequate, nickel base superalloys can also be considered.
Low carbon steel is fireproof when heated by flame, and brazing between cast iron and low carbon steel usually does not occur in the process of parts manufacturing. To weld low carbon steel to cast iron by brazing mostly occurs in the repair of cast iron defects or the need for zero-time assembly. Considering the poor thermal conductivity and plasticity of cast iron, the workpiece is not suitable for sudden cooling. It is suggested to use oxygen-acetylene flame heating and brass wire as filler.
The main components of steel structure produced by steel plate manufacturers are welded H steel columns, beams and braces. The following three flame correction methods are often used for welding deformation.
(1) linear heating method;
(2) point heating method;
(3) triangle heating method. The following are the construction methods to solve different parts.