Post Stock Login Register

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

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

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

As per chemical composition, ISO 683-17 20NiCrMo7 vs IS 1570 (Part 4) 20Ni7Cr2Mo2 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 ISO 683-17 20NiCrMo7:
UNI 11234 100Cr6 NF A35-565 100C6 GB/T 3077 12Cr2Ni4A GOST 4543 12HN3A IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
97.1%
MECHANICAL MATCH
No shared data
OVERALL
97.1%
Specifications
Property ISO 683-17 20NiCrMo7 IS 1570 (Part 4) 20Ni7Cr2Mo2
Standard ISO 683-17:1999 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.17-0.22 0.17-0.22
Si (%) 0.15-0.30 0.15-0.35
Mn (%) 0.45-0.65 0.45-0.65
Cr (%) 0.40-0.60 0.40-0.60
Mo (%) 0.20-0.30 0.20-0.30
Ni (%) 1.65-2.00 1.65-2.00
P (%) <=0.035 Not specified
S (%) <=0.040 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ISO 683-17 20NiCrMo7 IS 1570 (Part 4) 20Ni7Cr2Mo2
Tensile Strength 1000-1300 MPa Not specified
Yield Strength 800 MPa min Not specified
Elongation 9-12% Not specified
Hardness 300-360 HB Not specified
Typical Applications
ISO 683-17 20NiCrMo7
Used in large gears, turbine shafts, marine gearboxes, heavy-duty pinions, and industrial transmissions.
IS 1570 (Part 4) 20Ni7Cr2Mo2
Not documented
Key Differences
Can ISO 683-17 20NiCrMo7 Be Substituted With IS 1570 (Part 4) 20Ni7Cr2Mo2?
ISO 683-17 20NiCrMo7 and IS 1570 (Part 4) 20Ni7Cr2Mo2 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 4) 20Ni7Cr2Mo2 is often considered as a substitute for ISO 683-17 20NiCrMo7 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
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)
IS 1570 (Part 4) 20Ni7Cr2Mo2
No active listings currently.
On M-EX Right Now
ISO 683-17 20NiCrMo7
2 active listings and RFQs →
IS 1570 (Part 4) 20Ni7Cr2Mo2
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between ISO 683-17 20NiCrMo7 and IS 1570 (Part 4) 20Ni7Cr2Mo2?
ISO 683-17 20NiCrMo7 specifies P, S which are not specified for IS 1570 (Part 4) 20Ni7Cr2Mo2.
Can ISO 683-17 20NiCrMo7 be substituted with IS 1570 (Part 4) 20Ni7Cr2Mo2?
ISO 683-17 20NiCrMo7 and IS 1570 (Part 4) 20Ni7Cr2Mo2 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 4) 20Ni7Cr2Mo2 is often considered as a substitute for ISO 683-17 20NiCrMo7 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.