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IS 4367 25Cr13Mo6 vs IS 4367 40Ni6Cr4Mo3

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

IS 4367 25Cr13Mo6 (IS 4367:1991) and IS 4367 40Ni6Cr4Mo3 (IS 4367:1991) are both steel grades. Both fall under the Alloy Steel category. IS 4367 25Cr13Mo6 is typically used for used in boilers, pressure vessels, steam pipes, heat exchangers, refinery equipment, and power plant components., while IS 4367 40Ni6Cr4Mo3 is commonly used for aircraft landing gear, high strength shafts, gears, axles, connecting rods, heavy engineering components. IS 4367 25Cr13Mo6 is defined under Bureau of Indian Standards (IS), originating from India, while IS 4367 40Ni6Cr4Mo3 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 4367 25Cr13Mo6 vs IS 4367 40Ni6Cr4Mo3 is a 65.7% match. As per mechanical properties, the match is 100%. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With IS 4367 25Cr13Mo6:
NF A35-565 100C6 UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A GOST 4543 12HN3A IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 4) 103Cr4
Match Breakdown
CHEMISTRY MATCH
65.7%
MECHANICAL MATCH
100%
OVERALL
69.9%
Specifications
Property IS 4367 25Cr13Mo6 IS 4367 40Ni6Cr4Mo3
Standard IS 4367:1991 IS 4367:1991
Category Alloy Steel Alloy Steel
C (%) 0.20-0.30 0.35-0.45
Si (%) 0.10-0.35 0.10-0.35
Mn (%) 0.40-0.70 0.40-0.70
Ni (%) <=0.30 1.25-1.75
Cr (%) 2.90-3.40 0.90-1.30
Mo (%) 0.45-0.65 0.20-0.35
S (%) <=0.035 <=0.035
P (%) <=0.035 <=0.035
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 25Cr13Mo6 IS 4367 40Ni6Cr4Mo3
Tensile Strength 900-1050 MPa 900-1050 MPa
Yield Strength 700 MPa min 700 MPa min
Elongation >=15% >=15%
Izod Impact 55 J min 55 J min
Hardness 266-311 HB 266-311 HB
Hardness (soft annealed) <=230 HB <=230 HB
Condition Hardened and tempered, ruling section up to 150 mm Hardened and tempered, ruling section up to 150 mm
Typical Applications
IS 4367 25Cr13Mo6
Used in boilers, pressure vessels, steam pipes, heat exchangers, refinery equipment, and power plant components.
IS 4367 40Ni6Cr4Mo3
aircraft landing gear, high strength shafts, gears, axles, connecting rods, heavy engineering components
Can IS 4367 25Cr13Mo6 Be Substituted With IS 4367 40Ni6Cr4Mo3?
IS 4367 25Cr13Mo6 and IS 4367 40Ni6Cr4Mo3 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 4367 25Cr13Mo6
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5600–6500 mm (220.47–255.91 in)
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)
On M-EX Right Now
IS 4367 25Cr13Mo6
2 active listings and RFQs →
IS 4367 40Ni6Cr4Mo3
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 4367 25Cr13Mo6 and IS 4367 40Ni6Cr4Mo3?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 4367 25Cr13Mo6 be substituted with IS 4367 40Ni6Cr4Mo3?
IS 4367 25Cr13Mo6 and IS 4367 40Ni6Cr4Mo3 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.