Have you ever wondered what all those elements listed on a materials test report really mean? Read on! Increased amounts of carbon increase hardness and tensile strength, as well as response to heat treatment hardenability. Increased amounts of carbon will reduce weldability. Sulfur is usually an undesirable impurity in steel rather than an alloying element. In amounts exceeding 0.
Alloying additions of sulfur in amounts from 0. Free-machining alloys are not intended for use where welding is required. Phosphorus is generally considered to be an undesirable impurity in steels.
It is normally found in amounts up to 0. In hardened steels, it may tend to cause embrittlement. In low-alloy high-strength steels, phosphorus may be added in amounts up to 0. Usually only small amounts 0. However, in steel castings, 0. Silicon dissolves in iron and tends to strengthen it.
Weld metal usually contains approximately 0. When these filler metals are used for welding on clean surfaces, the resulting weld metal strength will be markedly increased. The resulting decrease in ductility could resent cracking problems.
Calcium Ca : Small additions are used to improve machiniability, without the detrimental effects on other properties caused by Sulphur, Phosphorus and Selenium. This Data is indicative only and as such is not to be relied upon in place of the full specification.
In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon. Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources.
Material supplied by the Company may vary significantly from this data, but will conform to all relevant and applicable standards. Copyright Aalco Metals Limited. All rights reserved. VAT No. Aalco The UK's largest independent multi-metals stockholder. Toggle navigation. Alloying Elements in Stainless Steel Stainless Steels comprise a number of alloying elements according to the specific grade and composition.
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Order Reprints. Effect of manganese on the shape of the austenite field[2]. Effect of alloying elements on hardenability - Grossman multiplying factors[2].
Facts about the Elements: Thallium.
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