A kind of stainless steel clad plate for weathering steel bridge with low yield strength ratio
A low-yield ratio, stainless steel technology, applied in chemical instruments and methods, layered products, metal layered products, etc., can solve the problems of polluted environment, poor atmospheric corrosion resistance, etc., achieve high metallurgical bonding quality, improve resistance Effect of corrosion performance and excellent corrosion resistance
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Embodiment 1
[0022] In this embodiment, the cladding material is a stainless steel billet with ultra-low C and micro-Ti added. The C content is 0.022% and the Ti content is 0.015%. The specific components are shown in Table 1; the atmospheric corrosion resistance index of the substrate is I=6.1, and the specific components are shown in Table 2. shown. The final rolling thickness of the base material is 58mm, the thickness of the cladding material is 2mm, and the total thickness of the finished product is a stainless steel clad plate for weathering steel bridges of 60mm.
[0023] The base material and the cladding continuous casting billet are heated at a high temperature of 1230±20℃ and then open to the required size. The upper surface of the blanked substrate is polished with abrasive belt to remove the surface iron oxide scale, and the entire surface of the board is completely exposed to the metallic luster of silvery color; Fresh metal, and check the upper and lower surfaces for defect...
Embodiment 2
[0026] In this embodiment, the cladding material selects a stainless steel billet with low C and micro Ti content. The C content is 0.030% and the Ti content is 0.30%. Ti will preferentially combine with C to form TiC, which plays a role in solidifying C and inhibits the combination of C and Cr. Precipitation of Cr 23 C 6 , which improves the corrosion resistance of the cladding material. The specific composition of the cladding material is shown in Table 1. A certain content of alloying elements such as Cr, Ni, and Cu are added to the base material, and the atmospheric corrosion resistance index is I=6.3. The specific components are shown in Table 2. The final rolling thickness of the base material is 5.5mm, the thickness of the cladding material is 0.5mm, and the total thickness of the finished product is a stainless steel composite plate for weathering steel bridges of 6mm.
[0027] The production process of the composite plate is the same as that of Example 1. The total t...
Embodiment 3
[0029] In this example, the cladding material selects a stainless steel billet with ultra-low C and micro-Ti content, the C content is 0.010%, and the Ti content is 0.012%. The specific composition of the cladding material is shown in Table 1; the base material is added with a certain content of Cr, Ni, Cu and other alloys element, the atmospheric corrosion resistance index I=6.6, and the specific components are shown in Table 2. The final rolling thickness of the base material is 20mm, the thickness of the cladding material is 3mm, and the total thickness of the finished product is 23mm of stainless steel composite plate for weathering steel bridge.
[0030] The total thickness of the composite billet, the vacuum degree of the interface between the cladding material and the substrate, and the rolling and cooling parameters of the composite billet are shown in Table 3. The total thickness of the rolled clad sheet was 46 mm. The rolled clad plate is subjected to tempering heat...
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Abstract
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