What are the properties and chemical composition of P235GH steel?

P235GH steel is a German high temperature structural steel, number code 1.0345.
Brand EN 10028, carbon steel container steel.
Generally, arc furnace and oxygen top blow converter are used for smelting, and high requirements are adopted for smelting outside the furnace, electroslag remelting or vacuum treatment, vacuum induction furnace smelting or double vacuum smelting, and suitable heat treatment.

P235GH steel has high content of alloying elements and good plasticity, toughness, cold bending and welding properties. P235GH steel is suitable for manufacturing nuclear island steel containment, pressure vessels and equipment components.
We can use our Q245R instead.
Compared with ordinary steel, P235GH steel has higher strength and toughness, cold bending and welding properties, physical properties, chemical properties, biocompatibility and process properties.

Mechanical properties of P235GH steel: Tensile strength 350-480 MPa;
Yield strength less than or equal to 215 MPa;
Extension rate 852 25%;
Impact absorption work Akv247J;
Brinell hardness & LT;
105-140, HB100/3000.

Chemical composition of P235GH steel (mass fraction, %) : C 0.16;
Si 0.35;
Mn, 0.60 -1.20;
P 0.025;
S 0.010;
Cr 0.30;
Ni 0.30;
Cu 0.30;
Mo 0.08;
V 0.02;
Nb 0.02;
N, 0.012;
Al, 0.020;
Ti is 0.03.

Heat treatment of P235GH steel: Hot working temperature 1100-850 ℃;
Annealing temperature: 890~950 ℃;
Normalizing temperature is 520-580 ℃.