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

Strong Match — 89.8% match based on chemical composition and mechanical property overlap.

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

As per chemical composition, EN 10089 55Si7 vs IS 1570 (Part 4) 65Si7 is a 89.8% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 89.8%.

Frequently Compared With EN 10089 55Si7:
EN 10089 50CrV4 EN 10083-3 51CrV4 EN 10089 55Cr3 GB/T 1222 55CrMnA IS 1570 (Part 4) 55Si7 IS 1570 (Part 4) 60Si7 IS 4367 55Si7 IS 5517 55Cr3 BS 970 EN42B BS 970 EN42
Other Spring Steel Grades to Compare With EN 10089 55Si7:
IS 3195 113C6 IS 3431 50Cr4V2
Match Breakdown
CHEMISTRY MATCH
89.8%
MECHANICAL MATCH
No shared data
OVERALL
89.8%
Specifications
Property EN 10089 55Si7 IS 1570 (Part 4) 65Si7
Standard EN 10089:2002 IS 1570 (Part 4):1988
Category Spring Steel Spring Steel
C (%) 0.51–0.59 0.60-0.70
Si (%) 1.50–2.00 1.50-2.00
Mn (%) 0.70–1.00 0.80-1.00
S (%) ≤0.040 Not specified
P (%) ≤0.040 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property EN 10089 55Si7 IS 1570 (Part 4) 65Si7
Tensile Strength 1000–1200 MPa Not specified
Yield Strength ≥900 MPa Not specified
Elongation ≥7% Not specified
Hardness 285–363 HB Not specified
Typical Applications
EN 10089 55Si7
Leaf springs, coil springs, torsion bars
IS 1570 (Part 4) 65Si7
Not documented
Key Differences
Can EN 10089 55Si7 Be Substituted With IS 1570 (Part 4) 65Si7?
EN 10089 55Si7 and IS 1570 (Part 4) 65Si7 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 4) 65Si7 is often considered as a substitute for EN 10089 55Si7 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
EN 10089 55Si7
Round Bar → (3 listings)
Diameter: 30–30 mm (1.18–1.18 in)
Length: 4200–7000 mm (165.35–275.59 in)
IS 1570 (Part 4) 65Si7
No active listings currently.
On M-EX Right Now
EN 10089 55Si7
3 active listings and RFQs →
IS 1570 (Part 4) 65Si7
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between EN 10089 55Si7 and IS 1570 (Part 4) 65Si7?
EN 10089 55Si7 specifies S, P which are not specified for IS 1570 (Part 4) 65Si7.
Can EN 10089 55Si7 be substituted with IS 1570 (Part 4) 65Si7?
EN 10089 55Si7 and IS 1570 (Part 4) 65Si7 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 4) 65Si7 is often considered as a substitute for EN 10089 55Si7 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.