Post Stock Login Register

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

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

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

As per chemical composition, SAE J404 4140 vs IS 1570 (Part 7) 12Cr4Mo5H 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 SAE J404 4140:
NF A35-565 100C6 GOST 4543 12HN3A UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A IS 1570 (Part 4) 10Cr20Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 7) 10Cr36Mo10H IS 11169 (Part 1) 12Cr4Mo2 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 105Cr5
Match Breakdown
CHEMISTRY MATCH
72.6%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property SAE J404 4140 IS 1570 (Part 7) 12Cr4Mo5H
Standard SAE J404:2009 IS 1570 (Part 7):1992
Category Alloy Steel Alloy Steel
C (%) 0.38-0.43 0.10-0.18
Cr (%) 0.80-1.10 0.70-1.10
Mn (%) 0.75-1.00 0.40-0.70
Mo (%) 0.15-0.25 0.45-0.65
P (%) <=0.030 <=0.040
S (%) <=0.040 Not specified
Si (%) 0.15-0.35 0.10-0.35
Al (metallic) (%) Not specified <=0.02
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 4140 IS 1570 (Part 7) 12Cr4Mo5H
Tensile Strength Not specified 440-590 MPa
Yield Strength Not specified >=275 MPa (0.2 % proof stress)
Elongation Not specified >=22%
Condition Not specified Pipes, N+T, thickness - (first row of Table 3)
Typical Applications
SAE J404 4140
Gears, shafts, dies, bolts, crankshafts
IS 1570 (Part 7) 12Cr4Mo5H
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Key Differences
Can SAE J404 4140 Be Substituted With IS 1570 (Part 7) 12Cr4Mo5H?
SAE J404 4140 and IS 1570 (Part 7) 12Cr4Mo5H 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 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)
IS 1570 (Part 7) 12Cr4Mo5H
No active listings currently.
On M-EX Right Now
SAE J404 4140
33 active listings and RFQs →
IS 1570 (Part 7) 12Cr4Mo5H
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between SAE J404 4140 and IS 1570 (Part 7) 12Cr4Mo5H?
SAE J404 4140 specifies S which is not specified for IS 1570 (Part 7) 12Cr4Mo5H. IS 1570 (Part 7) 12Cr4Mo5H specifies Al (metallic) which is not specified for SAE J404 4140.
Can SAE J404 4140 be substituted with IS 1570 (Part 7) 12Cr4Mo5H?
SAE J404 4140 and IS 1570 (Part 7) 12Cr4Mo5H 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.