AEROSPACE STEEL BAR


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Aerospace Steel Bar
Aerospace Steel Bar
Aerospace Steel Bar

Steel is an alloy of iron that contains a small amount of carbon, much less than cast iron and usually less than 1.7%. In general the tightly controlled carbon content determines how easily the steel can be hardened by heat treatments.

Nearest Equivalent Specification

Available Products

A 4% Nickel-Chromium-Molybdenum case hardening steel generally available in bars and forgings. For aircraft engineering, defence and autosport applications. A single melt version of S156. Tensile strength 1320 to 1520 MPa.

BS
W.Nr
AFNOR
835M15 (EN39B)
1.6722/3
16NCD17

S95

A direct hardening 1½% Nickel-Chromium-Molybdenum steel with high tensile strength and excellent toughness. Well suited to applications where high mechanical properties are required.

BS
AFNOR
817M40 (EN24)
40NCD7

S97

A 2½% Nickel-Chromium-Molybdenum steel well suited to large forgings and similar components. Tensile strength(Rm) 1020-1180 N/mm2.

W.Nr
BS
1.6743
826M31 (EN25)

S98

A 2½% Nickel-Chromium-Molybdenum high carbon steel generally available in bars and forgings. Tensile strength(Rm) 1180-1340 N/mm2.

W.Nr
BS
1.6745
826M40 (EN26)

S99

A 2½% Nickel-Chromium-Molybdenum high carbon steel generally available in bars and forgings. Tensile strength(Rm) 1230-1420 N/mm2.

W.Nr
BS
1.6745
826M40 (EN26)

S106

A medium strength 3% Chromium-Molybdenum nitriding steel that has high surface hardness after heat treatment. Primarily used in the aerospace sector but also used in motorsport for shaft/crankshaft applications.

W.Nr
AFNOR
BS
1.7365
30CD12
722M24 (EN40B)

A 3% Cr-Mo-V nitriding steel. Offers high strength and develops a hard wear resistant case after surface treatment. Generally available in bars and forgings for gearbox shafts and crankshafts.

W.Nr
AFNOR
BS
1.8523
40CDV12
897M39 (EN40C)

S140

A 2½% Nickel-Chromium-Molybdenum steel. Tensile strength(Rm) 1080-1280 N/mm2.

BS 826M31 (EN25)

S154

A 2½% Nickel-Chromium-Molybdenum steel generally available in bars and forgings. Tensile strength(Rm) 880-1080 N/mm2.

W.Nr
BS
1.6743
826M31 (EN25)

Ni-Si-Cr-Mo-V (VAR). Steel bar and forgings. British Standard aerospace grade. Vacuum arc remelted, through hardenable steel. For aircraft, defence and autosport components.

4340M
300M

A 4% Nickel-Chromium-Molybdenum case hardening steel generally available in bars and forgings. For aircraft engineering, defence and autosport applications. A VAR version of S82.

W.Nr
BS
AFNOR
1.6722/3
835M15 (EN39B)
16NCD17

Engineering
Steels

See Engineering Steels, Maraging Steel and Special Steels.