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BS 970:1955 EN45 Steel — Specifications & Listings

BS 970:1955

Silicon manganese spring steel

Forms: Round Bar Flat Bar Category: Spring Steel
Grade Details
GradeBS 970:1955 EN45
StandardBS 970:1955
DescriptionSilicon manganese spring steel
ApplicationsLeaf springs, coil springs, automotive suspension
Equivalent / Similar Grades
Grade Standard Region
55Si7 DIN Germany
AISI 9255 SAE USA
SUP6 JIS Japan
SAE5160 SAE USA
Chemical Composition (%)
C Mn Si S P
0.50–0.60 0.70–1.00 1.50–2.00 ≤0.050 ≤0.050
Mechanical Properties
Tensile Strength 1000–1150 MPa
Yield Strength ≥850 MPa
Elongation ≥8%
Hardness 285–341 HB
Typical Available Sizes
Round Bar 10mm–75mm dia
Flat Bar 20×5mm–100×20mm
Spring Flat 3×20mm–16×100mm
Sizes are indicative. Contact seller for exact availability.

Active BS 970:1955 EN45 Listings on M-EX

BS 970:1955 EN45 Round Bar
1.900 MT
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BS 970:1955 EN45 Round Bar
1.800 MT
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BS 970:1955 EN45 Round Bar
1.900 MT
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BS 970:1955 EN45 Flat Bar
2.000 MT
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