Product origin:

Ottokunp / Zhangpu, Sweden

Executive standard:

ASTM A240/ASME SA-240、ASTM A276、ASTM A182/ASME SA-182、ASTM A312/ASMES A312

Main ingredients:

Carbon (c) ≤ 0.08, manganese (MN) ≤ 2.0, nickel (Ni) 9.0 ~ 12.0, silicon (SI) ≤ 1.0, chromium (CR) 17.0 ~ 19.0, sulfur (s) ≤ 0.030, phosphorus (P) ≤ 0.035, titanium (TI) 5C ~ 0.7

Physical properties:

321 stainless steel density: 7.98g/cm3

Mechanical properties:

Tensile strength: σ B ≥ 520mpa, yield strength σ B ≥ 205mpa: elongation: δ ≥ 40%, hardness ≤ 187 (HB)

Corrosion resistance:

321 stainless steel is Ni Cr Mo austenitic stainless steel. Its properties are very similar to 304, but due to the addition of titanium, it has better grain boundary corrosion resistance and high temperature strength. Due to the addition of metallic titanium, the formation of chromium carbide is effectively controlled. 321 austenitic stainless steel has good corrosion resistance in the atmosphere and is widely used in petrochemical, electric power, bridge, automobile and other industries. However, the "stainless" of stainless steel is not absolute. Due to the special service environment, stainless steel will also be corroded. Medium concentration, pH value, temperature and other factors will have a great impact on the corrosion resistance of stainless steel. For example, if stainless steel is used for a long time within the sensitization temperature range of 450~850 ℃, intergranular corrosion will occur. The mechanism is that C and grain boundary

Application fields:

Oil and gas industry equipment; Offshore platforms, heat exchangers, underwater equipment, fire-fighting equipment; Chemical processing industry, utensils and pipelines; Desalination, high-pressure RO equipment and submarine pipelines; Energy industry, such as power plant desulfurization and denitration FGD system, industrial scrubbing system, absorption tower; Mechanical parts (high-strength, corrosion-resistant and wear-resistant parts).

Supporting welding materials:

ER321

Supply style:

board