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EN 10084 18NiCr5-4 vs IS 1570 (Part 4) 16Ni4Cr3

Close Alternative — 73% match based on chemical composition and mechanical property overlap.

EN 10084 18NiCr5-4 (EN 10084:2008) and IS 1570 (Part 4) 16Ni4Cr3 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. EN 10084 18NiCr5-4 is defined under European Standard (EN), originating from Europe, while IS 1570 (Part 4) 16Ni4Cr3 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, EN 10084 18NiCr5-4 vs IS 1570 (Part 4) 16Ni4Cr3 is a 73% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 73%.

Frequently Compared With EN 10084 18NiCr5-4:
IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 10Mo6 IS 11169 (Part 1) 10Ni5Cr4 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
73%
MECHANICAL MATCH
No shared data
OVERALL
73%
Specifications
Property EN 10084 18NiCr5-4 IS 1570 (Part 4) 16Ni4Cr3
Standard EN 10084:2008 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.16-0.21 0.12-0.20
Cr (%) 0.90-1.20 0.60-1.00
Mn (%) 0.60-0.90 0.60-1.00
Ni (%) 1.20-1.50 0.80-1.20
P (%) <=0.025 Not specified
S (%) <=0.035 Not specified
Si (%) <=0.40 0.15-0.35
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property EN 10084 18NiCr5-4 IS 1570 (Part 4) 16Ni4Cr3
Condition Soft annealed Case hardening steel, refined and quenched, core properties
Hardenability +H band at 1.5 mm from the quenched end: 41 to 49 HRC Not specified
Hardness Soft annealed: 223 HB max Not specified
Tensile Strength Not specified >=840 MPa
Elongation Not specified >=12%
Izod Impact Not specified >=41 J
Typical Applications
EN 10084 18NiCr5-4
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
IS 1570 (Part 4) 16Ni4Cr3
Not documented
Key Differences
Can EN 10084 18NiCr5-4 Be Substituted With IS 1570 (Part 4) 16Ni4Cr3?
EN 10084 18NiCr5-4 and IS 1570 (Part 4) 16Ni4Cr3 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
On M-EX Right Now
EN 10084 18NiCr5-4
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IS 1570 (Part 4) 16Ni4Cr3
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Frequently Asked Questions
What is the difference between EN 10084 18NiCr5-4 and IS 1570 (Part 4) 16Ni4Cr3?
EN 10084 18NiCr5-4 specifies P, S which are not specified for IS 1570 (Part 4) 16Ni4Cr3.
Can EN 10084 18NiCr5-4 be substituted with IS 1570 (Part 4) 16Ni4Cr3?
EN 10084 18NiCr5-4 and IS 1570 (Part 4) 16Ni4Cr3 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.