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IS 1570 (Part 4) 16Ni6Cr7Mo3 vs IS 11169 (Part 1) 20Ni6Cr3Mo3S3

Close Alternative — 72.4% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 4) 16Ni6Cr7Mo3 (IS 1570 (Part 4):1988) and IS 11169 (Part 1) 20Ni6Cr3Mo3S3 (IS 11169 (Part 1):2022) are both steel grades. Both fall under the Alloy Steel category. IS 1570 (Part 4) 16Ni6Cr7Mo3 is defined under Bureau of Indian Standards (IS), originating from India, while IS 11169 (Part 1) 20Ni6Cr3Mo3S3 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 1570 (Part 4) 16Ni6Cr7Mo3 vs IS 11169 (Part 1) 20Ni6Cr3Mo3S3 is a 72.4% 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 72.4%.

Frequently Compared With IS 1570 (Part 4) 16Ni6Cr7Mo3:
IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Mo6 GOST 4543 12HN3A NF A35-565 100C6 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
72.4%
MECHANICAL MATCH
No shared data
OVERALL
72.4%
Specifications
Property IS 1570 (Part 4) 16Ni6Cr7Mo3 IS 11169 (Part 1) 20Ni6Cr3Mo3S3
Standard IS 1570 (Part 4):1988 IS 11169 (Part 1):2022
Category Alloy Steel Alloy Steel
C (%) 0.14-0.19 0.16-0.23
Si (%) 0.15-0.35 <=0.30
Mn (%) 0.40-0.60 0.50-0.90
Ni (%) 1.40-1.70 1.40-1.70
Cr (%) 1.50-1.80 0.60-0.90
Mo (%) 0.25-0.35 0.25-0.35
Cu (%) Not specified <=0.25
P (%) Not specified <=0.025
S (%) Not specified 0.020-0.040
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) 16Ni6Cr7Mo3 IS 11169 (Part 1) 20Ni6Cr3Mo3S3
Hardness, ferrite-pearlite (+FP) Not specified 149-201 HB
Tensile Strength, annealed (+AC) Not specified <=610 MPa (over 5 to 25 mm)
Typical Applications
IS 1570 (Part 4) 16Ni6Cr7Mo3
Not documented
IS 11169 (Part 1) 20Ni6Cr3Mo3S3
Cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex B)
Key Differences
Can IS 1570 (Part 4) 16Ni6Cr7Mo3 Be Substituted With IS 11169 (Part 1) 20Ni6Cr3Mo3S3?
IS 1570 (Part 4) 16Ni6Cr7Mo3 and IS 11169 (Part 1) 20Ni6Cr3Mo3S3 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
IS 1570 (Part 4) 16Ni6Cr7Mo3
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IS 11169 (Part 1) 20Ni6Cr3Mo3S3
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Frequently Asked Questions
What is the difference between IS 1570 (Part 4) 16Ni6Cr7Mo3 and IS 11169 (Part 1) 20Ni6Cr3Mo3S3?
IS 11169 (Part 1) 20Ni6Cr3Mo3S3 specifies Cu, P, S which are not specified for IS 1570 (Part 4) 16Ni6Cr7Mo3.
Can IS 1570 (Part 4) 16Ni6Cr7Mo3 be substituted with IS 11169 (Part 1) 20Ni6Cr3Mo3S3?
IS 1570 (Part 4) 16Ni6Cr7Mo3 and IS 11169 (Part 1) 20Ni6Cr3Mo3S3 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.