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IS 4367 40Ni6Cr4Mo3 vs SAE J404 4340

Close Alternative — 70.7% match based on chemical composition and mechanical property overlap.

IS 4367 40Ni6Cr4Mo3 (IS 4367:1991) and SAE J404 4340 (SAE J404:2009) are both steel grades. Both fall under the Alloy Steel category. IS 4367 40Ni6Cr4Mo3 is typically used for aircraft landing gear, high strength shafts, gears, axles, connecting rods, heavy engineering components, while SAE J404 4340 is commonly used for aircraft parts, heavy duty gears, crankshafts. IS 4367 40Ni6Cr4Mo3 is defined under Bureau of Indian Standards (IS), originating from India, while SAE J404 4340 is defined under SAE International, originating from United States.

As per chemical composition, IS 4367 40Ni6Cr4Mo3 vs SAE J404 4340 is a 70.7% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 70.7%.

Frequently Compared With IS 4367 40Ni6Cr4Mo3:
NF A35-565 100C6 UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A GOST 4543 12HN3A IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 105Cr5
Match Breakdown
CHEMISTRY MATCH
70.7%
MECHANICAL MATCH
No shared data
OVERALL
70.7%
Specifications
Property IS 4367 40Ni6Cr4Mo3 SAE J404 4340
Standard IS 4367:1991 SAE J404:2009
Category Alloy Steel Alloy Steel
C (%) 0.35-0.45 0.38-0.43
Si (%) 0.10-0.35 0.15-0.35
Mn (%) 0.40-0.70 0.60-0.80
Ni (%) 1.25-1.75 1.65-2.00
Cr (%) 0.90-1.30 0.70-0.90
Mo (%) 0.20-0.35 0.20-0.30
S (%) <=0.035 <=0.040
P (%) <=0.035 <=0.030
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 4367 40Ni6Cr4Mo3 SAE J404 4340
Tensile Strength 900-1050 MPa Not specified
Yield Strength 700 MPa min Not specified
Elongation >=15% Not specified
Izod Impact 55 J min Not specified
Hardness 266-311 HB Not specified
Hardness (soft annealed) <=230 HB Not specified
Condition Hardened and tempered, ruling section up to 150 mm Not specified
Typical Applications
IS 4367 40Ni6Cr4Mo3
aircraft landing gear, high strength shafts, gears, axles, connecting rods, heavy engineering components
SAE J404 4340
Aircraft parts, heavy duty gears, crankshafts
Can IS 4367 40Ni6Cr4Mo3 Be Substituted With SAE J404 4340?
IS 4367 40Ni6Cr4Mo3 and SAE J404 4340 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
Forms & Sizes Available on M-EX
IS 4367 40Ni6Cr4Mo3
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5000–5200 mm (196.85–204.72 in)
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)
On M-EX Right Now
IS 4367 40Ni6Cr4Mo3
2 active listings and RFQs →
SAE J404 4340
32 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 4367 40Ni6Cr4Mo3 and SAE J404 4340?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 4367 40Ni6Cr4Mo3 be substituted with SAE J404 4340?
IS 4367 40Ni6Cr4Mo3 and SAE J404 4340 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.