Sailboat Parts Silica Sol Investment Casting Parts

Product Introduction

Manganese has a similar effect on austenite as nickel. But to be more precise, the role of manganese is not to form austenite, but to reduce the critical quenching rate of steel, increase the stability of austenite during cooling, and decompose austenite to make austenite formed at high temperatures The body can be kept at room temperature. In terms of improving the corrosion resistance of steel, manganese has little effect. For example, the manganese content in steel changes from 0 to 10.4%, and the corrosion resistance of steel in air and acid does not change significantly. This is because manganese has little effect on increasing the electrode potential of iron-based solid solution, and the protective effect of the formed oxide film is also very low. etc.), but they cannot be used as stainless steel. The role of manganese in stabilizing austenite in steel is about half of that of nickel, that is, the role of 2% nitrogen in steel is also stabilizing austenite, and the effect is greater than that of nickel. For example, in order to make steel containing 18% chromium obtain austenite structure at room temperature, low-nickel stainless steel with manganese and nitrogen instead of nickel and chromium-manganese-nitrogen stainless steel with nickel have been applied in industry. Has successfully replaced the classic 18-8 chrome-nickel stainless steel.

In the field of construction, due to the outstanding corrosion resistance and bright appearance of stainless steel, it is mostly used in coastal buildings, swimming pools, outdoor canopies, building roof walls, landscape sculptures, and outdoor load-bearing structures.

High requirements for steel antirust. The surface treatment of stainless steel often includes mirror surface (polishing), wire drawing, texture, etching, electrolysis, or coating coloring. It can also be rolled and punched into various concave-convex patterns, perforated plates, and processed into various wave-shaped cross-section plates. It has a good match with stone, wood, glass, and other materials. It not only takes advantage of the advantages of stainless steel but also brings rich changes in the surface mechanism.

The stainless steel sheets used for building skins are mostly austenitic 304 and pure iron system stainless steel. The pure iron system contains 20%~30% chromium and a small amount of molybdenum. The price is lower because it does not contain nickel, and the thermal expansion coefficient is relatively low. , suitable for long-span roofing materials.

Why are 316 stainless steel castings magnetic?

Because "duplex" stainless steel 2205 has integrated good atmospheric corrosion resistance with high tensile strength and elastic limit strength, this steel is also included in the European standards. Sailboat Parts Silica Sol Investment Casting Parts Product Shapes In fact, stainless steel is manufactured in all standard metal shapes and sizes, and there are many special shapes. Commonly used products are made of thin plates and strips, and medium and thick plates are also used to produce special products, such as hot-rolled structural steel and extruded structural steel. There are also round, oval, square, rectangular, and hexagonal welded or seamless steel pipes and other forms of products, including profiles, bars, wires, and castings. To meet the aesthetic requirements of architects, a number of different commercial finishes have been developed.

Carbon is one of the main elements of industrial steel. The performance and structure of steel are largely determined by the content and distribution of carbon in steel, and the influence of carbon in stainless steel. The influence of carbon on the structure of stainless steel is mainly manifested in two aspects. On the one hand, carbon is an element that stabilizes austenite, and the degree of effect is very large (about 30 times that of nickel), on the other hand, due to the strong affinity between carbon and chromium Large, formed with chromium—a series of complex carbides. Therefore, from the two aspects of strength and corrosion resistance, the role of carbon in stainless steel is contradictory. For example, the standard chromium content of the five steel grades 0Crl3~4Cr13 used in industry is also the minimum, and the chromium content is specified as 12~14%, which is determined after taking into account the factors that carbon will form chromium carbide with chromium. The purpose is to make the carbon and chromium combine to form chromium carbide, and the chromium content in the solid solution will not be lower than 11.7%, which is a relatively low chromium content.

316 stainless steel casting

Uses: petrochemical, papermaking, brewing, gas, steam, tap water, sewage treatment, and other projects.

Outer diameter: Φ21.34, 26.67, 33.4, 42.16, 48.26, 60.33, 73.03, 88.9, 101.6, 114.3, 141.3, 168.28, 219.08

Thickness: 1.65-8.18 Material: 304, 304L, 316L

Outer diameter tolerance: ≤42.16+0.8mm –0.4mm >42.16≤114.3±0.8mm >114.3≤ 219.08+1.6mm -0.8mm

Wall thickness tolerance: ≤73.03, +20%~ -12.5%; ＞73.03, ≤219.08 +22.5%~ -12.5%

Solid solution treatment, pickling passivation

Produced in accordance with JIS G3459 welded austenitic stainless steel pipe standard Suitable for austenitic stainless steel seamless steel pipes and straight seam steel pipes used in high temperature and general corrosive environments.

American 316 stainless steel castings

316l stainless steel seamless pipe is usually divided into:

1. Ferritic stainless steel. Chromium 12% to 30%. Its corrosion resistance, toughness, and weldability increase with the increase of chromium content, and its resistance to chloride stress corrosion is better than other types of stainless steel.

2. Austenitic stainless steel. It contains more than 18% chromium and also contains about 8% nickel and a small amount of molybdenum, titanium, nitrogen, and other elements. Good overall performance, resistant to corrosion by various media.

3. Austenitic-ferritic duplex stainless steel. It has the advantages of both austenitic and ferritic stainless steels and has superplasticity.

4. Martensitic stainless steel. High strength, but poor plasticity and weldability.

5. Precipitation hardening stainless steel. It has good formability and good weldability and can be used as an ultra-high material in the nuclear industry, aviation, and aerospace industries.

Company Profile

Qinhuangdao Zhongwei Precision Machine Parts Co., Ltd. was established in 1997. The company completed the technological transformation in 2002, changing from the foundry process to the lost wax casting process (silica sol precision casting). The existing precision casting process guarantees the perfect surface quality and dimensional accuracy of our castings. Qinhuangdao Zhongwei Precision Machine Parts Co., Ltd., in order to meet the needs of the group's one-stop service, give full play to the advantages of precision casting production, produce bearing housings for bearings, provide casting blanks for finishing and pressure sensors, and complete castings, processed parts, Assembly of products such as bearings and pressure sensors.

Detection Systems

Copper Silica Sol Investment Casting