Post Stock Login Register

SAE J404 4320 vs IS 4432 20Ni7Cr2Mo2

Strong Match — 99.2% match based on chemical composition and mechanical property overlap.

SAE J404 4320 (SAE J404:2000) and IS 4432 20Ni7Cr2Mo2 (IS 4432:1988) are both steel grades. Both fall under the Alloy Steel category. SAE J404 4320 is typically used for chemistry-only alloy steel grade; see the composition notes for product scope, while IS 4432 20Ni7Cr2Mo2 is commonly used for forgings and fabrication of case-hardened machine or automobile parts. SAE J404 4320 is defined under SAE International, originating from United States, while IS 4432 20Ni7Cr2Mo2 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, SAE J404 4320 vs IS 4432 20Ni7Cr2Mo2 is a 99.2% 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 99.2%.

Frequently Compared With SAE J404 4320:
IS 1570 (Part 4) 105Cr5 IS 4367 10Cr9Mo10 IS 11169 (Part 1) 10Ni5Cr4 IS 1570 (Part 4) 103Cr4 UNI 11234 100Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
99.2%
MECHANICAL MATCH
No shared data
OVERALL
99.2%
Specifications
Property SAE J404 4320 IS 4432 20Ni7Cr2Mo2
Standard SAE J404:2000 IS 4432:1988
Category Alloy Steel Alloy Steel
C (%) 0.17-0.22 0.17-0.22
Cr (%) 0.40-0.60 0.40-0.60
Mn (%) 0.45-0.65 0.45-0.65
Mo (%) 0.20-0.30 0.20-0.30
Ni (%) 1.65-2.00 1.65-2.00
P (%) <=0.030 <=0.035
S (%) <=0.040 <=0.035
Si (%) 0.15-0.35 0.15-0.35
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property SAE J404 4320 IS 4432 20Ni7Cr2Mo2
Core Tensile Strength Not specified 950-1350 MPa (16 mm) / 850-1200 MPa (30 mm) / 800-1150 MPa (63 mm)
Core Yield Strength Not specified >=650 MPa (16 mm) / >=600 MPa (30 mm) / >=550 MPa (63 mm)
Core Elongation Not specified >=8% (16 mm) / >=9% (30 mm) / >=10% (63 mm)
Core Reduction of Area Not specified >=35% (16 mm) / >=35% (30 mm) / >=40% (63 mm)
Hardness, annealed (A) Not specified <=229 HB
Typical Applications
SAE J404 4320
Chemistry-only alloy steel grade; see the composition notes for product scope
IS 4432 20Ni7Cr2Mo2
Forgings and fabrication of case-hardened machine or automobile parts
Can SAE J404 4320 Be Substituted With IS 4432 20Ni7Cr2Mo2?
SAE J404 4320 and IS 4432 20Ni7Cr2Mo2 overlap closely enough on chemistry and mechanical properties that IS 4432 20Ni7Cr2Mo2 is often considered as a substitute for SAE J404 4320 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
On M-EX Right Now
SAE J404 4320
0 active listings and RFQs →
IS 4432 20Ni7Cr2Mo2
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between SAE J404 4320 and IS 4432 20Ni7Cr2Mo2?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can SAE J404 4320 be substituted with IS 4432 20Ni7Cr2Mo2?
SAE J404 4320 and IS 4432 20Ni7Cr2Mo2 overlap closely enough on chemistry and mechanical properties that IS 4432 20Ni7Cr2Mo2 is often considered as a substitute for SAE J404 4320 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.