How do you read steel codes?

How do you read steel codes?

Carbon steels and alloy steels are designated a four digit number, whereby the first digit indicates the main alloying element(s), the second digit indicates tg (top grade) element(s), and the last two digits indicate the amount of carbon, in hundredths of a percent (basis points) by weight.

What are 8 classification factors of steel?

Classifications

• Composition: carbon range, alloy, stainless.
• The production method: continuous cast, electric furnace, etc.
• Finishing method used: cold rolled, hot rolled, cold drawn (cold finished), etc.
• Form or shape: bar, r od, tube, pipe, plate, sheet, structural, etc.

What are the classifications of steel?

The Four Main Types of Steel

• Carbon Steel. Carbon steel looks dull, matte-like, and is known to be vulnerable to corrosion.
• Alloy Steel. Next up is alloy steel, which is a mixture of several different metals, like nickel, copper, and aluminum.
• Tool Steel.
• Stainless Steel.

What is meant by grade of steel?

A grade is a way of classifying metals. A metal grade is designated by numbers, letters, or a combination of both. A metal grade is usually determined by its chemical composition, its mechanical properties, or both. There are many different organizations that create various standards for a given metal grade.

How are carbon steels classified by SAE / AISI?

The coding system is known for its efficient classification of steels as it uses the standards from the American Iron and Steel Institute (A.I.S.I.) and the Society of Automotive Engineers (S.A.E.). Alloy steels and carbon steels for a number of years were designated with specific grades by a four-digit SAE/AISE numerical index system.

What is the code for SAE 5130 carbon steel?

SAE 5130 indicates a chromium alloy steel containing 1% of chromium and 0.30% of carbon. An additional letter is sometimes added between the second and third digits of the code groups such as 11L41, 12L14 or 50B40. The letter L indicates the addition of lead (between 0.15% and 0.35%) to improve the machinability of the steel.

What kind of steel has a HTS code?

Steel Products by HTS Codes STEEL MILL PRODUCTS – showing HTS codes requiring licenses as of October 13th, 2020 Number Product Groups (58) HTS Code HTS Description Categories (6) 1 Carbon and Alloy Ingots and Steel for Castings 7206100000 IRON AND NONALLOY STEEL INGOTS Semi-Finished (Carbon and Alloy) 7206900000

Which is the best classification of stainless steel?

1 martensitic stainless steels 2 ferritic stainless steels 3 austenitic stainless steels 4 duplex (ferritic-austenitic) stainless steels 5 precipitation-hardening stainless steels