First of all, what stainless steel processing enterprises should do is to have a thorough understanding of the national environmental protection law and other relevant laws and regulations, and combine their own actual conditions to formulate strategies and plans for the next development of the enterprise. Some small and medium-sized stainless steel enterprises need to improve equipment level and environmental protection requirements in terms of scale and processing technology. Enterprises should also encourage scientific researchers to continuously develop stainless steel environmental protection technology and develop multi-functional intelligent products. If their technical capabilities are limited, they can introduce new systems and new technologies for environmental protection pickling, electroplating and waste recycling, and rely on “refined” management to reduce costs. The road of innovation, intensiveness and environmental protection, so as to obtain more benefits and reduce environmental pollution as much as possible. In particular, enterprises need to transform dust removal, purification, sewage treatment, and cleaning equipment, and must meet new environmental protection policies and new emission standards, so that even if the environmental protection storm is fierce, the enterprise can still stand tall! Although the investment cost of environmental protection equipment is large, and the cost of later maintenance and depreciation is...
1. Types and definitions of corrosion In many industrial applications, stainless steel can provide satisfactory corrosion resistance. According to the experience of use, in addition to mechanical failure, the corrosion of stainless steel is mainly manifested in: a serious form of corrosion of stainless steel is localized corrosion (ie stress corrosion cracking, pitting corrosion, intergranular corrosion, corrosion fatigue and crevice corrosion) . The failure cases caused by these localized corrosion accounted for almost more than half of the failure cases. In fact, many failure accidents can be avoided through reasonable selection of materials. Stress Corrosion Cracking (SCC): A general term that refers to the mutual failure of stressed alloys in corrosive environments due to the expansion of strong lines. Stress corrosion cracking has a brittle fracture morphology, but it can also occur in highly ductile materials. The necessary conditions for stress corrosion cracking to occur are the presence of tensile stress (whether residual stress or applied stress, or both) and a specific corrosive medium. The formation and expansion of the profile is approximately perpendicular to the direction of the tensile stress. The stress value that causes stress corrosion cracking is much smaller than the stress value required to fracture the...
What is the difference between 201 and 304 stainless steel? How to choose the right stainless steel material, let me help you to answer! 304 stainless steel has strong corrosion resistance: the essential difference between 201 and 304 stainless steel is mainly reflected in the different elements contained in the two. The chromium and nickel content of 304 stainless steel far exceeds that of 201 stainless steel, and the corrosion resistance and stamping performance of 304 stainless steel are far better than 201, and 304 stainless steel is generally used in complex environments and requires strong corrosion resistance. It is used in relatively dry environments or places where stainless steel is not required. 201 stainless steel is easy to rust: 201 stainless steel contains high manganese, while the nickel content is very low, the surface is very bright with dark and bright, and the high manganese content is easy to rust. 304 stainless steel is 1.6 times more expensive than 201: 304 stainless steel contains 18 chromium and 8 nickel, while 201 stainless steel has only 12 chromium and less than 1 nickel. The rust prevention and cost of stainless steel are related to chromium and nickel, so the price...
310S (0Cr25Ni20), heat-resistant stainless steel, 310S is austenitic chromium-nickel stainless steel, It has good oxidation resistance and corrosion resistance, because it contains a high percentage of chromium and nickel, It has high creep strength, can work continuously at high temperature, and has good high temperature resistance. Domestic grades: 0Cr25Ni20, 0Cr25Ni20Si2, also known as 2520 US grade: 310S, Creep strength is an indicator of high temperature performance of materials The so-called creep means that under the action of a certain temperature and a small constant external force (tension, pressure, torsion), The phenomenon that the deformation of the material increases gradually with the increase of time. According to its rate, it can be divided into three stages: Deceleration phase 1 • The rate of creep decreases with time. Also known as the transition creep stage, it is essentially a work hardening process. constant speed stage 2 • The creep rate is almost constant, also known as the steady-state creep stage. The steady state creep rate determines the creep life and total elongation. accelerated creep stage 3. Creep rate increases until fracture occurs The fundamental reason that affects the creep process lies in the properties of the material itself. But for the same...
Home WhatsApp Mail Inquiry
