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IS 1570 (Part 4) 16Ni4Cr3 vs GOST 4543 12HN3A

Minimal Match — 51.4% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 4) 16Ni4Cr3 (IS 1570 (Part 4):1988) and GOST 4543 12HN3A (GOST 4543-2016) are both steel grades. Both fall under the Alloy Steel category. IS 1570 (Part 4) 16Ni4Cr3 is defined under Bureau of Indian Standards (IS) (India).

As per chemical composition, IS 1570 (Part 4) 16Ni4Cr3 vs GOST 4543 12HN3A is a 77.1% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 51.4%.

Frequently Compared With IS 1570 (Part 4) 16Ni4Cr3:
IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 10Cr20Mo6 GB/T 3077 12Cr2Ni4A UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Mo6 EN 10084 10NiCr5-4 IS 4367 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
77.1%
MECHANICAL MATCH
0%
OVERALL
51.4%
Specifications
Property IS 1570 (Part 4) 16Ni4Cr3 GOST 4543 12HN3A
Standard IS 1570 (Part 4):1988 GOST 4543-2016
Category Alloy Steel Alloy Steel
C (%) 0.12-0.20 0.09-0.16
Si (%) 0.15-0.35 0.17-0.37
Mn (%) 0.60-1.00 0.3-0.6
Ni (%) 0.80-1.20 2.75-3.15
Cr (%) 0.60-1.00 0.6-0.9
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) 16Ni4Cr3 GOST 4543 12HN3A
Tensile Strength >=840 MPa 850-1050 MPa
Elongation >=12% 11% min
Izod Impact >=41 J Not specified
Condition Case hardening steel, refined and quenched, core properties Not specified
Yield Strength Not specified 685 MPa min
Hardness Not specified 58-62 HRC (case)
Typical Applications
IS 1570 (Part 4) 16Ni4Cr3
Not documented
GOST 4543 12HN3A
Used for gears, pinions, crankshafts, aircraft parts, and transmission components.
Can IS 1570 (Part 4) 16Ni4Cr3 Be Substituted With GOST 4543 12HN3A?
IS 1570 (Part 4) 16Ni4Cr3 and GOST 4543 12HN3A 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) 16Ni4Cr3
No active listings currently.
GOST 4543 12HN3A
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5600–6600 mm (220.47–259.84 in)
On M-EX Right Now
IS 1570 (Part 4) 16Ni4Cr3
0 active listings and RFQs →
GOST 4543 12HN3A
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 4) 16Ni4Cr3 and GOST 4543 12HN3A?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 1570 (Part 4) 16Ni4Cr3 be substituted with GOST 4543 12HN3A?
IS 1570 (Part 4) 16Ni4Cr3 and GOST 4543 12HN3A 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.