Post Stock Login Register

SAE J404 4340 vs IS 1570 (Part 4) 103Cr6

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

SAE J404 4340 (SAE J404:2009) and IS 1570 (Part 4) 103Cr6 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. SAE J404 4340 is defined under SAE International, originating from United States, while IS 1570 (Part 4) 103Cr6 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, SAE J404 4340 vs IS 1570 (Part 4) 103Cr6 is a 57.1% 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 SAE J404 4340:
GB/T 3077 12Cr2Ni4A NF A35-565 100C6 GOST 4543 12HN3A UNI 11234 100Cr6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 4367 10Cr9Mo10 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
57.1%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property SAE J404 4340 IS 1570 (Part 4) 103Cr6
Standard SAE J404:2009 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.38-0.43 0.95-1.10
Cr (%) 0.70-0.90 1.40-1.60
Mn (%) 0.60-0.80 0.25-0.45
Mo (%) 0.20-0.30 Not specified
Ni (%) 1.65-2.00 Not specified
P (%) <=0.030 Not specified
S (%) <=0.040 Not specified
Si (%) 0.15-0.35 0.10-0.35
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
SAE J404 4340
Aircraft parts, heavy duty gears, crankshafts
IS 1570 (Part 4) 103Cr6
Not documented
Key Differences
Can SAE J404 4340 Be Substituted With IS 1570 (Part 4) 103Cr6?
SAE J404 4340 and IS 1570 (Part 4) 103Cr6 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
SAE J404 4340
Round Bar → (25 listings)
Diameter: 50–100 mm (1.97–3.94 in)
Length: 3800–7000 mm (149.61–275.59 in)
Forging → (4 listings)
Diameter: 150–200 mm (5.91–7.87 in)
Length: 500–1500 mm (19.69–59.06 in)
Flat Bar → (3 listings)
Thickness: 30–30 mm (1.18–1.18 in)
Width: 120–120 mm (4.72–4.72 in)
Length: 2500–3000 mm (98.43–118.11 in)
IS 1570 (Part 4) 103Cr6
No active listings currently.
On M-EX Right Now
SAE J404 4340
32 active listings and RFQs →
IS 1570 (Part 4) 103Cr6
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between SAE J404 4340 and IS 1570 (Part 4) 103Cr6?
SAE J404 4340 specifies Mo, Ni, P, S which are not specified for IS 1570 (Part 4) 103Cr6.
Can SAE J404 4340 be substituted with IS 1570 (Part 4) 103Cr6?
SAE J404 4340 and IS 1570 (Part 4) 103Cr6 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.