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IS 1570 (Part 4) 65Si7 vs EN 10089 55Cr3

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 4) 65Si7 (IS 1570 (Part 4):1988) and EN 10089 55Cr3 (EN 10089:2002) are both steel grades. Both fall under the Spring Steel category. IS 1570 (Part 4) 65Si7 is defined under Bureau of Indian Standards (IS), originating from India, while EN 10089 55Cr3 is defined under European Standard (EN), originating from Europe.

As per chemical composition, IS 1570 (Part 4) 65Si7 vs EN 10089 55Cr3 is a 73.1% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With IS 1570 (Part 4) 65Si7:
IS 3431 55Si7 IS 1570 (Part 4) 60Si7 IS 3431 60Si7 IS 1570 (Part 4) 55Si7 IS 4367 55Si7 IS 3195 113C6 EN 10089 55Si7 IS 3195 55Si7 IS 3195 60Si7 IS 3431 65Si7 IS 3195 65Si7 IS 3195 98C6
Match Breakdown
CHEMISTRY MATCH
73.1%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property IS 1570 (Part 4) 65Si7 EN 10089 55Cr3
Standard IS 1570 (Part 4):1988 EN 10089:2002
Category Spring Steel Spring Steel
C (%) 0.60-0.70 0.52–0.59
Si (%) 1.50-2.00 0.15–0.35
Mn (%) 0.80-1.00 0.70–1.00
Cr (%) Not specified 0.60–0.90
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 1570 (Part 4) 65Si7 EN 10089 55Cr3
Tensile Strength Not specified 1100–1350 MPa
Yield Strength Not specified ≥1000 MPa
Elongation Not specified ≥6%
Hardness Not specified 321–388 HB
Typical Applications
IS 1570 (Part 4) 65Si7
Not documented
EN 10089 55Cr3
Automotive leaf springs, heavy coil springs
Key Differences
Can IS 1570 (Part 4) 65Si7 Be Substituted With EN 10089 55Cr3?
IS 1570 (Part 4) 65Si7 and EN 10089 55Cr3 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
Forms & Sizes Available on M-EX
IS 1570 (Part 4) 65Si7
No active listings currently.
EN 10089 55Cr3
Round Bar → (3 listings)
Diameter: 30–30 mm (1.18–1.18 in)
Length: 5100–6600 mm (200.79–259.84 in)
On M-EX Right Now
IS 1570 (Part 4) 65Si7
0 active listings and RFQs →
EN 10089 55Cr3
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 4) 65Si7 and EN 10089 55Cr3?
EN 10089 55Cr3 specifies Cr which is not specified for IS 1570 (Part 4) 65Si7.
Can IS 1570 (Part 4) 65Si7 be substituted with EN 10089 55Cr3?
IS 1570 (Part 4) 65Si7 and EN 10089 55Cr3 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.