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AISI 8620 vs IS 1570 (Part 4) 20Ni2Cr2Mo2

Strong Match — 98.6% match based on chemical composition and mechanical property overlap.

AISI 8620 and IS 1570 (Part 4) 20Ni2Cr2Mo2 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. AISI 8620 is defined under AISI, originating from United States, while IS 1570 (Part 4) 20Ni2Cr2Mo2 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, AISI 8620 vs IS 1570 (Part 4) 20Ni2Cr2Mo2 is a 98.6% 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 98.6%.

Frequently Compared With AISI 8620:
NF A35-565 100C6 UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A GOST 4543 12HN3A IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr6
Match Breakdown
CHEMISTRY MATCH
98.6%
MECHANICAL MATCH
No shared data
OVERALL
98.6%
Specifications
Property AISI 8620 IS 1570 (Part 4) 20Ni2Cr2Mo2
Standard AISI IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.18-0.23 0.18-0.23
Mn (%) 0.70-0.90 0.70-0.90
Si (%) 0.15-0.35 0.15-0.35
Ni (%) 0.40-0.70 0.40-0.70
Cr (%) 0.40-0.60 0.40-0.60
Mo (%) 0.15-0.25 0.15-0.25
P (%) 0.035 max Not specified
S (%) 0.040 max 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 AISI 8620 IS 1570 (Part 4) 20Ni2Cr2Mo2
Tensile Strength 750-980 MPa Not specified
Yield Strength 550-780 MPa Not specified
Elongation 12-18% Not specified
Hardness 200-280 HB Not specified
Typical Applications
AISI 8620
Used for gears, shafts, sprockets, pinions, bushings, and transmission components.
IS 1570 (Part 4) 20Ni2Cr2Mo2
Not documented
Key Differences
Can AISI 8620 Be Substituted With IS 1570 (Part 4) 20Ni2Cr2Mo2?
AISI 8620 and IS 1570 (Part 4) 20Ni2Cr2Mo2 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 4) 20Ni2Cr2Mo2 is often considered as a substitute for AISI 8620 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
AISI 8620
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6600–6900 mm (259.84–271.65 in)
IS 1570 (Part 4) 20Ni2Cr2Mo2
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On M-EX Right Now
AISI 8620
2 active listings and RFQs →
IS 1570 (Part 4) 20Ni2Cr2Mo2
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Frequently Asked Questions
What is the difference between AISI 8620 and IS 1570 (Part 4) 20Ni2Cr2Mo2?
AISI 8620 specifies P, S which are not specified for IS 1570 (Part 4) 20Ni2Cr2Mo2.
Can AISI 8620 be substituted with IS 1570 (Part 4) 20Ni2Cr2Mo2?
AISI 8620 and IS 1570 (Part 4) 20Ni2Cr2Mo2 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 4) 20Ni2Cr2Mo2 is often considered as a substitute for AISI 8620 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.