10 screw diameter stainless steel hexagon bolts material selection,

10 screw diameter stainless steel hexagon bolts material selection, implementation standards, and application industries

What are called stainless steel cylindrical head socket head cap screws?

Stainless steel hexagon socket head cap screws, also known as stainless steel cylindrical head hexagon socket head screws, stainless steel hexagon socket head cap screws, and stainless steel cup head screws，The name is not the same. The meaning is the same. Stainless steel hexagon socket head cap screws according to the material for the stainless steel SUS201, stainless steel SUS304, stainless steel SUS316, and so on.

1. Material: the material classification of stainless steel screws are austenitic stainless steel, ferritic stainless steel, martensitic stainless steel, and precipitation hardening stainless steel. The selection of stainless steel screws also has the principle of what to start from so that you can choose the stainless steel screws you need. Through these five aspects of a comprehensive, comprehensive consideration, and finally determine the selection of stainless steel screws grade, species, specifications, and material standards.

Austenitic stainless steel: austenitic stainless steel is the most basic alloying elements of chromium and nickel, representative of the grades containing chromium for about 18%, containing nickel for about 8% of chromium a nickel austenitic stainless steel, often called 18 -8 stainless steel. The elemental ratio of chromium and nickel ensures that the organization of the steel is stable austenite.

Ferritic stainless steel: 430-type ordinary chromium steel, its corrosion resistance and heat resistance than 410-type good, magnetic, but it is not able to heat treatment to strengthen, suitable for corrosion resistance and heat resistance is slightly higher, the strength requirements of the general stainless steel stainless steel screws.

Martensitic stainless steel: 410 type and 416 type can be heat treatment to strengthen the hardness of 35 ~ 45HRC, machinability is good, for general purposes of heat-resistant corrosion-resistant stainless steel screws.

416-type sulfur content is slightly higher and is easy to cut stainless steel. 420-type, sulfur content?R0.15%, mechanical properties to improve, can be heat-treated to strengthen the maximum hardness value of 53 ~ 58HRC, used for the requirements of higher strength stainless steel screws.

Precipitation hardening stainless steel: 17-4PH, PH15-7Mo, they can get higher strength than the usual 18-8 type stainless steel, and thus are used for high strength, corrosion-resistant stainless steel stainless steel screws.

A-286, non-standard stainless steel, than the usual 18-8 type stainless steel, has higher corrosion resistance and, in the temperature increase, still has good mechanical properties. Used as high strength, heat resistant, corrosion resistant stainless steel screws, can be used to 650 ~ 700 ℃.

Austenitic stainless steel: commonly used models for 302, 303, 304, and 305 four models, the so-called "18-8" type austenitic stainless steel these four models. Whether it is corrosion resistance or its mechanical properties are similar. The starting point for the selection of stainless steel screw production process methods and methods depends on the size and shape of stainless steel screws but also depends on the number of production.

Type 302 is used for screws and self-tapping bolts that are machined.

Type 303 is used for nuts machined from bar stock. A small amount of sulfur is added to the stainless steel to improve cutting performance.

Type 304 is used for the machining of stainless steel screws using the hot heading process, such as longer bolts and large diameter bolts, which may be beyond the scope of the cold heading process.

Type 305 is suitable for processing stainless steel screws by cold heading processes, such as cold-formed nuts and hexagon bolts.

Types 309 and 310, with higher Cr and Ni content than 18-8 stainless steel, are suitable for stainless steel screws working at high temperatures.

Type 316 and 317 all contain the alloying element Mo, so their high-temperature strength and corrosion resistance are higher than those of 18-8 type stainless steel.

Type 321 and 347, type 321 contains the more stable alloying element Ti, and type 347 contains Nb, which improves the material's resistance to intergranular corrosion. It is suitable for stainless steel standard parts not annealed after welding or in service at 420～1013℃.

Metric Stainless Steel Ultra-Wide Flanged Button Head Screws: These 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. The flange is broader and thicker than our other flanged screws, so they distribute pressure the best. Head height includes the flange. Length is measured from under the flange.

Extreme-Strength Stainless Steel Flanged Hex Head Screws: For strength comparable to that of Grade 9 steel and the corrosion resistance of stainless steel, choose these screws. They are work-hardened for extreme strength and can be used in heavy-duty stamping applications and earth-moving machinery, such as bulldozers and excavators. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. Head height includes the flange. Length is measured from under the flange.

18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. Four hundred fifty stainless steel screws are more corrosion resistant than 18-8 stainless steel screws and have good resistance to chemicals and salt water. They are magnetic.

For high-quality stainless steel hexagonal head screws&hex nuts and professional technical support, don't hesitate to contact us at adelajonly@gmail.com or visit our website at: https://www.juxinfasteners.com.

2. Reference standards: stainless steel screws executive standards are AS, ANSI, ASME, ASTM, IFI, BS, DIN, EN, ISO, JIS Standard, and so on, DIN912 GB/T70.1 ISO4762 ANSIB18.3 JISB1176 It is worth noting that stainless steel pan head socket head cap screws and Stainless Steel Cylindrical Head Hexagon Socket Screws are both described in terms of the effective length below the head in terms of dimensional measurements. And stainless steel flat head hexagon socket head cap screws (also known as countersunk head hexagon socket head cap screws) is the measurement of the screw SUS304 stainless steel screws in general terms, refer to the use of stainless steel wire products containing nickel standards to eight nickel or more.

3.Raw materials: the primary use of austenitic 201, 304, 316, 316L. Usually, only 201, 304, 316, and other materials on the market hexagon socket head cap screws are in stock; the other need to be processed and customized according to customer demand. Stainless steel hexagon socket head cap screws, material selection, etc., to drawings and samples customized to suit the customer's products. Stainless steel screw material selection principles:

3.1 The stainless steel screw material in terms of mechanical properties, especially the strength requirements;

3.2 working conditions on the corrosion resistance of the material requirements;

3.3 working temperature of the material heat resistance (high-temperature strength, oxidation resistance) requirements;

3.4 Requirements on the processing performance of the material in terms of the production process;

3.5 Other aspects, such as weight, price, procurement, and many others, should also be considered.

4. Application industry

Stainless steel screws usually refer to steel screws that can resist corrosion by air, water, acid, alkali salt, or other media. Stainless steel screws are generally not easy to rust, durable, and can be used in environmental protection equipment, medical equipment, communication equipment, chemical pumps, and other fields and mainly used for environmental protection equipment, medical equipment, communication equipment, power facilities, electronic products, instruments, food machinery, petrochemicals, ship assembly, pumps, valves, pipelines, building curtain walls, open-air occasions, sports facilities, and outdoor decoration.

Machinery industry: automobiles, motorcycles, ships, machine tools, agricultural equipment, electrical equipment, engineering machinery, etc;

Electronics industry: computers, semiconductors, electronic appliances, electrical equipment, communication equipment, cell phones, TVs and other electronic products;

Construction industry: bridges, highways, tunnels, rail transit, building components, etc;

Chemical industry: petroleum, chemical, pharmaceutical, medical equipment and other industries;

Furniture and smart home appliances: furniture, lamps, sanitary ware, lighting, air conditioning, refrigeration, household appliances, etc.

In general, stainless steel screws are a kind of connector widely used in various fields, and their high strength, corrosion resistance, high-temperature resistance, good shock resistance, and other characteristics make them have excellent performance in different harsh environments.