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AISI 9255 Steel — Specifications & Listings

AISI

Silicon manganese spring steel

Forms: Round Bar Category: Spring Steel
Grade Details
GradeAISI 9255
StandardAISI
DescriptionSilicon manganese spring steel
ApplicationsHeavy duty leaf springs, coil springs
Equivalent / Similar Grades
Grade Standard Region
55Si7 DIN Germany
EN45 BS970 UK
SUP6 JIS Japan
Chemical Composition (%)
C Mn Si S P
0.51–0.59 0.70–0.95 1.80–2.20 ≤0.040 ≤0.040
Mechanical Properties
Tensile Strength 1050–1250 MPa
Yield Strength ≥900 MPa
Elongation ≥7%
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 AISI 9255 Listings on M-EX

AISI 9255 Round Bar
2.200 MT
View Listing
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