BMJ01 special point

Good economy: save nickel, chromium and other precious metals, resource friendly;

Excellent bonding: the base material and the cladding material are metallurgical combination of atomic diffusion mode, which can not be split;

Good corrosion resistance: the cladding material and solution state 304 has the same uniform corrosion resistance and corrosion resistance;

Good formability: under normal circumstances, the formability is better than carbon steel substrate;

Good weldability: Adopt the welding method of filling metal material, can obtain the welding joint of excellent comprehensive performance.

Corrosion performance

Uniform corrosion performance: GB/T10125 neutral salt spray test, 240 hours without corrosion.

Pitting corrosion performance: GB/T 17899 stainless steel pitting potential measurement method measured the pitting potential of stainless steel cladding 0.30V above, and solid solution state 304 stainless steel is comparable.

Intergranular Corrosion Performance: ASTM G108 Test Method for Electrochemical reactivation (EPR) of 304 and 304L stainless steels sensitized to intergranular corrosion and solution

State 304 stainless steel equivalent.

Welding method

As far as possible using mechanical machining method machining groove, cladding upward;

Weldment assembly is based on cladding, and the amount of misalignment is generally not more than 1/2 of the thickness of cladding.

309L filler material is recommended for cladding welding. When the thickness of the composite plate is less than 4mm, the same welding material as the transition layer and the cladding layer can be selected for the base welding. The composite plate is larger than 4mm

Can increase the welding thickness of the transition layer and base, and finally use carbon steel welding material to weld the base material.