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GB/T 1222 55CrMnA Steel — Specifications & Listings

GB/T 1222Chinese chrome manganese spring steel

Forms: Round Bar Category: Spring Steel
Grade Details
GradeGB/T 1222 55CrMnA
StandardGB/T 1222
DescriptionChinese chrome manganese spring steel
ApplicationsAutomotive leaf springs, coil springs
Equivalent / Similar Grades
Grade Standard Region
55Cr3 DIN Germany
SUP9 JIS Japan
SAE5155 SAE USA
Chemical Composition (%)
C Si Mn Cr
0.52–0.60 0.17–0.37 0.70–1.00 0.65–0.95
Mechanical Properties
Tensile Strength ≥1225 MPa
Yield Strength ≥1080 MPa
Elongation ≥6%
Typical Available Sizes
Round Bar 10mm–75mm dia
Spring Flat 5×30mm–20×150mm
Sizes are indicative. Contact seller for exact availability.

Active GB/T 1222 55CrMnA Listings on M-EX

GB/T 1222 55CrMnA Round Bar
2.100 MT
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GB/T 1222 55CrMnA Round Bar
5.700 MT
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