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Bright Steels
Interlloy
Grade
Nearest
Related
Specification
Typical Composition (%) & Properties Description &
Applications
C Mn Ph S Si
M1020 AS1443-1020
BS970 PART 1 1983 070M20
(EN3B)
SAE/AISI 1020 GRADE 2
0.20 0.50 0.05
MAX
0.05
MAX
0.23 Mild steel for machined parts or shafting.
Can be case hardened and welds readily.
M1030 AS1443 - 1030
BS970 PART 1 1983 080M 30
(EN6A)
SAE/AISI 1030 GRADE 1
0.30 0.75 0.05
MAX
0.05
MAX
0.23 Medium high tensile steel for shafts and medium stressed parts.
Can be welded with care.
Can be heat treated.
1040* AS1443 - 1040
BS970 PART 1 1983 080M 40
(EN8)
SAE/AISI 1040 GRADE 1B
0.40 0.75 0.04
MAX
0.04
MAX
0.23 Medium high tensile steel for shafts and parts requiring 620MPa (40 tonne tensile).
Responds to heat treatment.
1045 AS1443 - 1045
BS970 PART 1 1983 080A47
(EN43B)
SAE/AISI 1045
0.45 0.75 0.04
MAX
0.04
MAX
0.23 Medium high tensile steel for shafts and machinery parts.
Suitable for induction and flame hardening.
S1214 AS1443 - 1214
BS970 PART 1 1983 220M07
(EN1A)
SAE/AISI 1215
ESFC
0.15
MAX
1.00 0.09 0.35 0.15
MAX
For maximum machinability and free cutting properties.
Can be case hardened.
*1040 has been replaced by 1045. May be available in some sections subject to enquiry.

See Stocked Sizes for a complete listing of available range.

Interlloy believes the information provided is accurate and reliable. However no warranty of accuracy, completeness or reliability is given, nor will any responsibility be taken for errors or omissions.
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