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IS 11169 (Part 1) 18Cr4Mo2S3 vs IS 11169 (Part 1) 12Cr4Mo2

Close Alternative — 73.7% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 18Cr4Mo2S3 (IS 11169 (Part 1):2022) and IS 11169 (Part 1) 12Cr4Mo2 (IS 11169 (Part 1):2022) are both steel grades. Both fall under the Alloy Steel category. IS 11169 (Part 1) 18Cr4Mo2S3 is typically used for cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex b), while IS 11169 (Part 1) 12Cr4Mo2 is commonly used for cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex b). IS 11169 (Part 1) 18Cr4Mo2S3 is defined under Bureau of Indian Standards (IS), originating from India, while IS 11169 (Part 1) 12Cr4Mo2 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 11169 (Part 1) 18Cr4Mo2S3 vs IS 11169 (Part 1) 12Cr4Mo2 is a 88.9% match. As per mechanical properties, the match is 43.3%. Combined, this makes them a close alternative overall at 73.7%.

Frequently Compared With IS 11169 (Part 1) 18Cr4Mo2S3:
IS 1570 (Part 7) 10Mo6H IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 4367 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 10Mo6
Match Breakdown
CHEMISTRY MATCH
88.9%
MECHANICAL MATCH
43.3%
OVERALL
73.7%
Specifications
Property IS 11169 (Part 1) 18Cr4Mo2S3 IS 11169 (Part 1) 12Cr4Mo2
Standard IS 11169 (Part 1):2022 IS 11169 (Part 1):2022
Category Alloy Steel Alloy Steel
C (%) 0.15-0.21 0.10-0.15
Cr (%) 0.90-1.20 0.90-1.20
Cu (%) <=0.25 <=0.25
Mn (%) 0.60-0.90 0.60-0.90
Mo (%) 0.15-0.25 0.15-0.25
P (%) <=0.025 <=0.025
S (%) 0.020-0.040 <=0.025
Si (%) <=0.30 <=0.30
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 11169 (Part 1) 18Cr4Mo2S3 IS 11169 (Part 1) 12Cr4Mo2
Hardness, ferrite-pearlite (+FP) 140-187 HB 135-185 HB
Tensile Strength, annealed (+AC) <=550 MPa (over 5 to 40 mm) <=500 MPa (over 5 to 40 mm)
Typical Applications
IS 11169 (Part 1) 18Cr4Mo2S3
Cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex B)
IS 11169 (Part 1) 12Cr4Mo2
Cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex B)
Can IS 11169 (Part 1) 18Cr4Mo2S3 Be Substituted With IS 11169 (Part 1) 12Cr4Mo2?
IS 11169 (Part 1) 18Cr4Mo2S3 and IS 11169 (Part 1) 12Cr4Mo2 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.
On M-EX Right Now
IS 11169 (Part 1) 18Cr4Mo2S3
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IS 11169 (Part 1) 12Cr4Mo2
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Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 18Cr4Mo2S3 and IS 11169 (Part 1) 12Cr4Mo2?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 11169 (Part 1) 18Cr4Mo2S3 be substituted with IS 11169 (Part 1) 12Cr4Mo2?
IS 11169 (Part 1) 18Cr4Mo2S3 and IS 11169 (Part 1) 12Cr4Mo2 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.