Alloy Steels

Alloy steel is steel that is alloyed with a variety of elements in total amounts between 1.0% and 50% by weight to improve its mechanical properties. 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%. Most commonly, the phrase “alloy steel” refers to low-alloy steels.

Every steel is truly an alloy, but not all steels are called “alloy steels”. Even the simplest steels are iron (Fe) (about 99%) alloyed with carbon (C) (about 0.1% to 1%, depending on type). However, the term “alloy steel” is the standard term referring to steels with other alloying elements in addition to the carbon. Common alloyants include manganese (the most common one), nickel, chromium, molybdenum,vanadium, silicon, and boron. Less common alloyants include aluminum, cobalt, copper, cerium, niobium, titanium, tungsten, tin, zinc, lead, and zirconium.

The following is a range of improved properties in alloy steels (as compared to carbon steels): strength, hardness, toughness, wear resistance, corrosion resistance hardenability, and hot hardness. To achieve some of these improved properties the metal may require heat treating.

Some of these find uses in exotic and highly-demanding applications, such as in the turbine blades of jet engines, in spacecraft, and in nuclear reactors. Because of the ferromagnetic properties of iron, some steel alloys find important applications where their responses to magnetism are very important, including in electric motors and in transformers.

AIRCRAFT ALLOY BARS

GRADE
E-17-22A
E-4130
E-4130 H.T.R.C. 26/32
E-4140
E-4330 Mod, N&T
E-4330 Mod. Vac
E 4340 N&T
E 4340 Vac. Melt. N&T
E-4340 Mod.”300M” Vac. Melt N&
E-4620
E-4620 Vac. Melt
E-6150
E-6150 Vac. Melt
E-8740
E-9310 N&T
E-9310 N&T Vac. Melt
E-52100 Ann
E-52100 Vac. Melt
D6AC Vac. Melt.
H-11 Vac. Melt.
Hy-Tuf
Hy-Tuf Vac. Melt N&T
Nitriding BHN 241-285
Nitriding Vac. Melt.
9-4-30 Vac. Melt.
SPECIFICATION
AMS-6304, KAYNAR MS-103
MIL-S-6758, AMS-6370, AMS-2301, AMS-6348
MIL-S-6758, AMS-2301
MIL-S-5626, AMS-6382, AMS-2301, AMS-6349
MIL-S-8699, AMS-6427, AMS-2301
MIL-S-8699, AMS-6411, AMS-6427, AMS-2300
MIL-S-5000, AMS-6415, AMS-2301, AMS-6409
MIL-S-8844 CL 1, MIL-S-5000, AMS-6415, AMS-2300, AMS-6414
MIL-S-8844-CL 3, MIL-S-83135, AMS-6417, AMS-6419, AMS-2300
MIL-S-7493, AMS-6294, AMS-2301
MIL-S-7493, AMS-6294, AMS-2300
MIL-S-8503, AMS-6448, AMS-2301
MIL-S-8503, AMS-6448, AMS-2300
MIL-S-6049, AMS-6322, AMS-2301
MIL-S-7393C, AMS-6260, AMS-2301, Aires, HT 5042
MIL-S-7393C, AMS-6265, AMS 6260, AMS-2300, MIL-S- 83030 Comp. 3, AMS 6267
MIL-S-7420, AMS-6440, AMS-2301
MIL-S-7420, AMS-6444, AMS-6440, AMS-2300
MIL-S-8949, AMS-6431, AMS-2300
AMS-6487, AMS-2300, AMS-6488
MIL-S-7108, AMS-6418, AMS-2301
AMS 6418, MIL-S-7108, AMS 6425, AMS-2300
MIL-S-6709A, AMS-6470 Exc. Hardness, AMS-6472, AMS-2301
MILS-6709A, AMS-6471 135 Modified, AMS-2300
AMS-6526

ALLOY STEEL AND PLATE

GRADE
4130
4340
TEMPER
A, N
A, N, T
SPECIFICATION
MILS18729, AMS6345, AMS6350, AMS 6351
AMS6359

Sheet thicknesses: .020″ to .187″. Plate thicknesses: .187″ to 6.000″

ALLOY STEEL TUBE AND PIPE

GRADE
4130
4135
4140
4340
TEMPER
Annealed, Norm.
Annealed, Norm.
Annealed, Norm.
Annealed, Norm.
SPECIFICATION
MILT6736, AMS6360
MILT6735, AMS6365
AMS6381
AMS6415

Export Packing

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Export packing is done on site and every piece of material shipped from Delta Alloys is packed in Heat Treated wooden crate only according to ISPM-15 requirements, suitable for Air and Sea Freight to any destination in the world.

Aerospace Metals Supplier, Delta Alloys, is an ISO 9001:2008 certified company located in California (USA) and ships aerospace materials worldwide.