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IS 1570 (Part 4) 20Ni7Cr2Mo2 vs ISO 683-17 20NiCrMo7

Strong Match — 97.1% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 4) 20Ni7Cr2Mo2 (IS 1570 (Part 4):1988) and ISO 683-17 20NiCrMo7 (ISO 683-17:1999) are both steel grades. Both fall under the Alloy Steel category. IS 1570 (Part 4) 20Ni7Cr2Mo2 is defined under Bureau of Indian Standards (IS), originating from India, while ISO 683-17 20NiCrMo7 is defined under International Organization for Standardization (ISO), originating from International.

As per chemical composition, IS 1570 (Part 4) 20Ni7Cr2Mo2 vs ISO 683-17 20NiCrMo7 is a 97.1% 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 97.1%.

Frequently Compared With IS 1570 (Part 4) 20Ni7Cr2Mo2:
IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Mo6 GB/T 3077 12Cr2Ni4A GOST 4543 12HN3A IS 1570 (Part 4) 103Cr6 IS 4367 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
97.1%
MECHANICAL MATCH
No shared data
OVERALL
97.1%
Specifications
Property IS 1570 (Part 4) 20Ni7Cr2Mo2 ISO 683-17 20NiCrMo7
Standard IS 1570 (Part 4):1988 ISO 683-17:1999
Category Alloy Steel Alloy Steel
C (%) 0.17-0.22 0.17-0.22
Si (%) 0.15-0.35 0.15-0.30
Mn (%) 0.45-0.65 0.45-0.65
Ni (%) 1.65-2.00 1.65-2.00
Cr (%) 0.40-0.60 0.40-0.60
Mo (%) 0.20-0.30 0.20-0.30
P (%) Not specified <=0.035
S (%) Not specified <=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) 20Ni7Cr2Mo2 ISO 683-17 20NiCrMo7
Tensile Strength Not specified 1000-1300 MPa
Yield Strength Not specified 800 MPa min
Elongation Not specified 9-12%
Hardness Not specified 300-360 HB
Typical Applications
IS 1570 (Part 4) 20Ni7Cr2Mo2
Not documented
ISO 683-17 20NiCrMo7
Used in large gears, turbine shafts, marine gearboxes, heavy-duty pinions, and industrial transmissions.
Key Differences
Can IS 1570 (Part 4) 20Ni7Cr2Mo2 Be Substituted With ISO 683-17 20NiCrMo7?
IS 1570 (Part 4) 20Ni7Cr2Mo2 and ISO 683-17 20NiCrMo7 overlap closely enough on chemistry and mechanical properties that ISO 683-17 20NiCrMo7 is often considered as a substitute for IS 1570 (Part 4) 20Ni7Cr2Mo2 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
IS 1570 (Part 4) 20Ni7Cr2Mo2
No active listings currently.
ISO 683-17 20NiCrMo7
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6600–7000 mm (259.84–275.59 in)
On M-EX Right Now
IS 1570 (Part 4) 20Ni7Cr2Mo2
0 active listings and RFQs →
ISO 683-17 20NiCrMo7
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 4) 20Ni7Cr2Mo2 and ISO 683-17 20NiCrMo7?
ISO 683-17 20NiCrMo7 specifies P, S which are not specified for IS 1570 (Part 4) 20Ni7Cr2Mo2.
Can IS 1570 (Part 4) 20Ni7Cr2Mo2 be substituted with ISO 683-17 20NiCrMo7?
IS 1570 (Part 4) 20Ni7Cr2Mo2 and ISO 683-17 20NiCrMo7 overlap closely enough on chemistry and mechanical properties that ISO 683-17 20NiCrMo7 is often considered as a substitute for IS 1570 (Part 4) 20Ni7Cr2Mo2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.