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IS 1570 (Part 7) 12C7H vs IS 11169 (Part 1) 7C4

Close Alternative — 75.6% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 7) 12C7H (IS 1570 (Part 7):1992) and IS 11169 (Part 1) 7C4 (IS 11169 (Part 1):2022) are both steel grades. Both fall under the Carbon Steel category. IS 1570 (Part 7) 12C7H is typically used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature, while IS 11169 (Part 1) 7C4 is commonly used for cold heading and cold extrusion of parts not heat treated after cold forming; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex a). IS 1570 (Part 7) 12C7H is defined under Bureau of Indian Standards (IS), originating from India, while IS 11169 (Part 1) 7C4 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 1570 (Part 7) 12C7H vs IS 11169 (Part 1) 7C4 is a 75.6% 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 75.6%.

Frequently Compared With IS 1570 (Part 7) 12C7H:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 045A10 BS 970 (Part 1) 040A12 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 060A32 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 1) 055M15
Match Breakdown
CHEMISTRY MATCH
75.6%
MECHANICAL MATCH
No shared data
OVERALL
75.6%
Specifications
Property IS 1570 (Part 7) 12C7H IS 11169 (Part 1) 7C4
Standard IS 1570 (Part 7):1992 IS 11169 (Part 1):2022
Category Carbon Steel Carbon Steel
C (%) <=0.17 <=0.12
Si (%) 0.10-0.35 Not specified
Mn (%) 0.40-1.00 <=0.50
P (%) <=0.045 <=0.035
S (%) <=0.045 <=0.035
Cr (%) <=0.25 <=0.15
Ni (%) <=0.35 <=0.15
Cu (%) <=0.30 <=0.15
Mo (%) Not specified <=0.05
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) 12C7H IS 11169 (Part 1) 7C4
Tensile Strength 360-480 MPa Not specified
Yield Strength >=215 MPa (0.2 % proof stress) Not specified
Elongation >=24% Not specified
Condition Seamless pipe and pipe with seam, N, thickness - (first row of Table 3) Not specified
Hardness, annealed (+AC) Not specified <=120 HBW
Typical Applications
IS 1570 (Part 7) 12C7H
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
IS 11169 (Part 1) 7C4
Cold heading and cold extrusion of parts not heat treated after cold forming; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex A)
Key Differences
Can IS 1570 (Part 7) 12C7H Be Substituted With IS 11169 (Part 1) 7C4?
IS 1570 (Part 7) 12C7H and IS 11169 (Part 1) 7C4 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 1570 (Part 7) 12C7H
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IS 11169 (Part 1) 7C4
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Frequently Asked Questions
What is the difference between IS 1570 (Part 7) 12C7H and IS 11169 (Part 1) 7C4?
IS 1570 (Part 7) 12C7H specifies Si which is not specified for IS 11169 (Part 1) 7C4. IS 11169 (Part 1) 7C4 specifies Mo which is not specified for IS 1570 (Part 7) 12C7H.
Can IS 1570 (Part 7) 12C7H be substituted with IS 11169 (Part 1) 7C4?
IS 1570 (Part 7) 12C7H and IS 11169 (Part 1) 7C4 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.