IS 5517 55Si6Cr3 vs NF A35-565 100C6

Minimal Match — 46.6% match based on chemical composition and mechanical property overlap.

IS 5517 55Si6Cr3 (IS 5517:1993) and NF A35-565 100C6 are both steel grades. Both fall under the Alloy Steel category. IS 5517 55Si6Cr3 is defined under Bureau of Indian Standards (IS), originating from India, while NF A35-565 100C6 is defined under Association Francaise de Normalisation (NF), originating from France.

As per chemical composition, IS 5517 55Si6Cr3 vs NF A35-565 100C6 is a 70% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 46.6%.

Frequently Compared With IS 5517 55Si6Cr3:
IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 103Cr4 UNI 11234 100Cr6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Mo6H IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 10Mo6 IS 11169 (Part 1) 10Ni5Cr4 IS 4367 10Cr9Mo10 IS 4367 07Cr4Mo6
Match Breakdown
CHEMISTRY MATCH
70%
MECHANICAL MATCH
0%
OVERALL
46.6%
Specifications
Property IS 5517 55Si6Cr3 NF A35-565 100C6
Standard IS 5517:1993 NF A35-565
Category Alloy Steel Alloy Steel
C (%) 0.50-0.60 0.95-1.05
Si (%) 1.20-1.60 0.15-0.35
Mn (%) 0.50-0.80 0.25-0.45
Cr (%) 0.50-0.80 1.35-1.65
S (%) <=0.035 <=0.025
P (%) <=0.035 <=0.027
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 5517 55Si6Cr3 NF A35-565 100C6
Tensile Strength 1400-1600 MPa 850-1100 MPa
Yield Strength (0.2% proof) 1200 MPa min Not specified
Elongation >=6% Not specified
Hardness (annealed) <=220 HB Not specified
Condition Hardened and tempered, ruling section up to 16 mm Not specified
Hardness Not specified 60-66 HRC
Typical Applications
IS 5517 55Si6Cr3
Not documented
NF A35-565 100C6
ball bearings, roller bearings, bearing races, rollers, precision tools, wear resistant parts
Can IS 5517 55Si6Cr3 Be Substituted With NF A35-565 100C6?
IS 5517 55Si6Cr3 and NF A35-565 100C6 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 5517 55Si6Cr3
No active listings currently.
NF A35-565 100C6
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6700–6700 mm (263.78–263.78 in)
On M-EX Right Now
IS 5517 55Si6Cr3
0 active listings and RFQs →
NF A35-565 100C6
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 5517 55Si6Cr3 and NF A35-565 100C6?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 5517 55Si6Cr3 be substituted with NF A35-565 100C6?
IS 5517 55Si6Cr3 and NF A35-565 100C6 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.