Mostly iron. the "low" of the 'low alloy' can refer to both the carbon content and the prorprtion of other metals in the alloy.
Alloy steels are broken down into two groups: low-alloy steels and high-alloy steels. The difference between the two is somewhat arbitrary: Smith and Hashemi define the difference at 4.0%, while Degarmo, et al., define it at 8.0%.
prostitutes
The difference in classification of low alloy and high alloy steels is based on the metal composition: low alloy steels include a lower concentration of alloying metals versus high alloy steels. The composition affects properties like strength, ductility, etc.
carbon
Low alloy steels
Bolts are generally made of medium carbon, plain or low alloy steels depending on the grade (property class). Higher grades are usually made of low alloy steels. Some grades have small additions of Chromium or Boron.
Ths cost of tool steel is dependent on many factors including the alloy content and the manufacturing cost. Low alloy tool steels can be boought for less than $2.00 per pound. High alloy tool steels and high speed steels are sold for as much as $30.00 per pound. See the related links below for more information about the cost of tool steels
SAE1006 is a low-carbon steel grade that is classified as non-alloy steel. It contains relatively low amounts of carbon and other alloying elements, making it suitable for applications where high strength and hardness are not critical factors.
Most drills a re made from tool steel. Some better ones are made from alloy steels
High alloy steel contain: iron (base), carbon, nickel, vanadium, chromium, molybdenum, wolfram, silicon, etc.
The only alloy steel recommended for cryogenic service is 9% nickel steel. It is satisfactory for service down to -195°C and is used for transport and storage of cryogenics because of its low cost and ease of fabrication. Other alloy steels are suitable for service in the low-temperature range. The steels A201 and T-1 can suffice to -45°C, nickel steels with 2.25% Ni can suffice to -59°C, and nickel steels with 3.5% Ni to -101°C.
Richard Lloyd Jones has written: 'The toughness of submerged-arc weld metals in low alloy steels'
M. J. Bibby has written: 'The welding of high-strength low-alloy (HSLA) pipeline steels'