Material description of stainless steel

We are a supplier specializing in the research and development of fluid pipeline technology. We produce, supply and export all kinds of high-quality pipes and fittings. We are praised by customers for its dimensional accuracy, precise function and durability. We provide the same customized size and shape to our respected customers. Let’s talk about the stainless steel material.

In layman’s terms, stainless steel is not easy to rust. In fact, some stainless steels have both rust resistance and acid resistance (corrosion resistance). Stainless steel’s stainless and corrosion resistance is due to the formation of chromium-rich oxide film (passivation film) on its surface. This stainlessness and corrosion resistance are relative. Tests have shown that the corrosion resistance of steel in the atmosphere, water and other weak media and nitric acid and other oxidizing media increases with the increase of chromium content in the steel. When the chromium content reaches a certain percentage, the corrosion resistance of the steel changes abruptly , Namely from easy to rust to hard to rust, from non-corrosion resistance to corrosion resistance.

Stainless steel materials are: stainless steel belt, stainless steel rod, stainless steel plate, stainless steel wire, stainless steel tube,
Product grades are: SUS310S, 316L, 316, 304, 304L, 309, 305, 314, 303, 321, 301, 202, 201, etc.;

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 (that is, stress corrosion cracking, pitting corrosion, intergranular corrosion, corrosion fatigue and crevice corrosion) . The failure cases caused by these local corrosion account for almost half of the failure cases. In fact, many failure accidents can be avoided through reasonable material selection.
What is the material of 304 stainless steel

304 stainless steel is a common material in stainless steel, with a density of 7.93 g/cm3, also known as 18/8 stainless steel in the industry. High temperature resistance 800℃, with good processing performance and high toughness, widely used in industry and furniture decoration industry and food and medical industry.
Common marking methods on the market include SUS304, which generally represents national standard production, 304 generally represents ASTM standard production, and SUS 304 represents Japanese standard production.
304 stainless steel is the most widely used chromium-nickel stainless steel. As a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical characteristics; good hot workability such as stamping and bending, and no heat treatment Hardening phenomenon (use temperature -196℃~800℃).
It is resistant to corrosion in the atmosphere. If it is an industrial atmosphere or a heavily polluted area, it needs to be cleaned in time to avoid corrosion. Suitable for food processing, storage and transportation. Has good processing performance and weldability.

Plate heat exchangers, bellows, household goods (category 1, 2 tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, molded products), medical appliances, building materials, chemicals, food industry , Agriculture, ship parts, etc.

Post time: 2020-06-22
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