AISI 431 black stainless steel round bar
AISI 431 black stainless steel round bar martensite stainless steel. 431(16cr-2ni) Cr steel containing Ni can obtain high mechanical properties through heat treatment, and corrosion resistance is better than 410 steel and 430 steel. The 431 stainless steel corresponds to China 1Cr17Ni2 and Japan JIS SUS431. Chemical composition: C: ≤ 0.20 manganese Mn: ≤ 1.00 silicon Si: ≤ 1.00.
431 stainless steel black bar material is made of 304 material, 347H has good corrosion resistance, welding performance and thermal strength performance. Used for large boiler superheater, reheater, steam pipe, petrochemical heat exchanger pipe.
431 stainless steel round bar generally ranging from 15 to 75 yuan, stainless steel round bar is a cylindrical stainless steel products, widely used in automotive accessories, aerospace hardware tools, chemical and other industries. 431 is just one of its Numbers
The 431 stainless steel belongs to the long material class, also belongs to the bar class, the so-called stainless steel round steel refers to the cross section is uniform circular long material, generally about four meters long. It can be divided into circles of light and black bars. The so-called light circle, refers to the smooth surface, after quasi-rolling treatment; And the so-called black rod, refers to the surface of black thick, directly from the hot rolling.
431 is martensitic stainless steel, 430 is ferritic stainless steel, the difference in element content between the two is not very big, mainly 431 contains 1.25%-2.5% nickel, 430 does not contain. The elements of the two materials are as follows: 431 stainless steel elements: (carbon) C0.2, (manganese) Mn1.0, (phosphorus) P0.04, (sulfur) S0.03, (silicon) Si1.00, (chromium) Cr15~17. Ni1.25~2.5. The elemental composition of 430 stainless steel :(carbon) C0.12, (manganese) Mn1.0, (phosphorus) P0.04, (sulfur) S0.03, (silicon) Si1.00, (chromium) Cr16~18.
AISI 431 black stainless steel round bar martensite stainless steel. 431(16cr-2ni) Cr steel containing Ni can obtain high mechanical properties through heat treatment, and corrosion resistance is better than 410 steel and 430 steel. The 431 stainless steel corresponds to China 1Cr17Ni2 and Japan JIS SUS431.
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