Year1
- 产品规格：
- 齐全
Alloy tube
Carbon.~.
Silicon.~.
Manganese.~.
Chromium.~
① The two digits at the beginning of the steel number indicate The carbon content of steel is expressed as a few ten thousandths of the average carbon content.
②The main alloying elements in steel, except for individual microalloying elements, are generally expressed in percentages. When the average alloy content is .%, the steel number is generally marked with only the element symbol and not the content. However, in special cases where confusion is likely to occur, a number can also be marked after the element symbol. For example, the steel number and the former chromium content are .-.%. The latter is .-.% and all other ingredients are the same. When the average content of alloy elements is .%, .%, .%, the content should be indicated after the element symbol. The content can be expressed as,, etc. accordingly. For example.
③Alloying elements such as vanadium, titanium, aluminum, boron, and rare earth r in steel are all microalloying elements. Although the content is very low, they should still be marked in the steel grade. For example, in steel. Vanadium is .-.% and Boron is .-.%.
④High-grade high-quality steel should be distinguished from general high-quality steel at the end of the steel number.
⑤Special-purpose alloy structural steel steel numbers are preceded (or suffixed) with a symbol representing the purpose of the steel type. For example, the special steel grade for rivet screws is expressed as.
Alloy pipes and seamless pipes are both related and different and cannot be confused.
Alloy pipes are steel pipes defined according to the materials used for production (that is, materials). As the name suggests, they are pipes made of alloys, while seamless pipes are steel pipes defined according to the production process (seamless and seamless). They are different from seamless pipes. Seamed pipes include straight seam welded pipes and spiral pipes.
WhatsApp
