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IS 1570 (Part 7) 12Cr4Mo5H vs SAE J404 4140

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 7) 12Cr4Mo5H (IS 1570 (Part 7):1992) and SAE J404 4140 (SAE J404:2009) are both steel grades. Both fall under the Alloy Steel category. IS 1570 (Part 7) 12Cr4Mo5H is typically used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature, while SAE J404 4140 is commonly used for gears, shafts, dies, bolts, crankshafts. IS 1570 (Part 7) 12Cr4Mo5H is defined under Bureau of Indian Standards (IS), originating from India, while SAE J404 4140 is defined under SAE International, originating from United States.

As per chemical composition, IS 1570 (Part 7) 12Cr4Mo5H vs SAE J404 4140 is a 72.6% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With IS 1570 (Part 7) 12Cr4Mo5H:
IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 7) 12Cr2Mo5V2H NF A35-565 100C6 IS 1570 (Part 7) 12Cr9Mo10H IS 1570 (Part 7) 10Mo6H IS 1570 (Part 4) 103Cr4 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 105Cr5 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr6 UNI 11234 100Cr6 IS 1570 (Part 4) 07Cr4Mo6
Match Breakdown
CHEMISTRY MATCH
72.6%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property IS 1570 (Part 7) 12Cr4Mo5H SAE J404 4140
Standard IS 1570 (Part 7):1992 SAE J404:2009
Category Alloy Steel Alloy Steel
C (%) 0.10-0.18 0.38-0.43
Si (%) 0.10-0.35 0.15-0.35
Mn (%) 0.40-0.70 0.75-1.00
P (%) <=0.040 <=0.030
Cr (%) 0.70-1.10 0.80-1.10
Mo (%) 0.45-0.65 0.15-0.25
Al (metallic) (%) <=0.02 Not specified
S (%) Not specified <=0.040
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 1570 (Part 7) 12Cr4Mo5H SAE J404 4140
Tensile Strength 440-590 MPa Not specified
Yield Strength >=275 MPa (0.2 % proof stress) Not specified
Elongation >=22% Not specified
Condition Pipes, N+T, thickness - (first row of Table 3) Not specified
Typical Applications
IS 1570 (Part 7) 12Cr4Mo5H
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
SAE J404 4140
Gears, shafts, dies, bolts, crankshafts
Key Differences
Can IS 1570 (Part 7) 12Cr4Mo5H Be Substituted With SAE J404 4140?
IS 1570 (Part 7) 12Cr4Mo5H and SAE J404 4140 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
IS 1570 (Part 7) 12Cr4Mo5H
No active listings currently.
SAE J404 4140
Round Bar → (20 listings)
Diameter: 40–75 mm (1.57–2.95 in)
Length: 4800–6800 mm (188.98–267.72 in)
Hex Bar → (7 listings)
Across Flats: 40–60 mm (1.57–2.36 in)
Length: 2600–6100 mm (102.36–240.16 in)
Flat Bar → (6 listings)
Thickness: 35–40 mm (1.38–1.57 in)
Width: 180–180 mm (7.09–7.09 in)
Length: 2500–4400 mm (98.43–173.23 in)
On M-EX Right Now
IS 1570 (Part 7) 12Cr4Mo5H
0 active listings and RFQs →
SAE J404 4140
33 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 7) 12Cr4Mo5H and SAE J404 4140?
IS 1570 (Part 7) 12Cr4Mo5H specifies Al (metallic) which is not specified for SAE J404 4140. SAE J404 4140 specifies S which is not specified for IS 1570 (Part 7) 12Cr4Mo5H.
Can IS 1570 (Part 7) 12Cr4Mo5H be substituted with SAE J404 4140?
IS 1570 (Part 7) 12Cr4Mo5H and SAE J404 4140 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.