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AISI 5120 vs IS 1570 (Part 4) 10Cr20Mo6

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

AISI 5120 and IS 1570 (Part 4) 10Cr20Mo6 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. AISI 5120 is defined under AISI, originating from United States, while IS 1570 (Part 4) 10Cr20Mo6 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, AISI 5120 vs IS 1570 (Part 4) 10Cr20Mo6 is a 58% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With AISI 5120:
GB/T 3077 12Cr2Ni4A GOST 4543 12HN3A UNI 11234 100Cr6 NF A35-565 100C6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 105Cr5 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 103Cr4 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
58%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property AISI 5120 IS 1570 (Part 4) 10Cr20Mo6
Standard AISI IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.17–0.22 <=0.15
Mn (%) 0.70–0.90 0.40-0.70
Cr (%) 0.70–0.90 4.0-6.0
Si (%) 0.15–0.35 <=0.50
Ni (%) Not specified <=0.30
Mo (%) Not specified 0.45-0.65
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property AISI 5120 IS 1570 (Part 4) 10Cr20Mo6
Condition Carburized & Case Hardened Not specified
Tensile Strength 750–950 MPa Not specified
Case Hardness HRC 58–62 Not specified
Core Hardness HB 207–269 Not specified
Typical Applications
AISI 5120
Case hardened gears, pins, shafts, cams
IS 1570 (Part 4) 10Cr20Mo6
Not documented
Key Differences
Can AISI 5120 Be Substituted With IS 1570 (Part 4) 10Cr20Mo6?
AISI 5120 and IS 1570 (Part 4) 10Cr20Mo6 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
AISI 5120
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5100–6500 mm (200.79–255.91 in)
IS 1570 (Part 4) 10Cr20Mo6
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AISI 5120
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IS 1570 (Part 4) 10Cr20Mo6
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Frequently Asked Questions
What is the difference between AISI 5120 and IS 1570 (Part 4) 10Cr20Mo6?
IS 1570 (Part 4) 10Cr20Mo6 specifies Ni, Mo which are not specified for AISI 5120.
Can AISI 5120 be substituted with IS 1570 (Part 4) 10Cr20Mo6?
AISI 5120 and IS 1570 (Part 4) 10Cr20Mo6 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.