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IS 11169 (Part 1) 25C4 vs GB/T 699 25

Close Alternative — 78.3% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 25C4 (IS 11169 (Part 1):2022) and GB/T 699 25 (GB/T 699:2015) are both steel grades. Both fall under the Carbon Steel category. IS 11169 (Part 1) 25C4 is typically 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), while GB/T 699 25 is commonly used for hot-rolled or forged quality carbon structural steel bars up to 250 mm. IS 11169 (Part 1) 25C4 is defined under Bureau of Indian Standards (IS), originating from India, while GB/T 699 25 is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, IS 11169 (Part 1) 25C4 vs GB/T 699 25 is a 78.3% 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 78.3%.

Frequently Compared With IS 11169 (Part 1) 25C4:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 3) 045M10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10
Match Breakdown
CHEMISTRY MATCH
78.3%
MECHANICAL MATCH
No shared data
OVERALL
78.3%
Specifications
Property IS 11169 (Part 1) 25C4 GB/T 699 25
Standard IS 11169 (Part 1):2022 GB/T 699:2015
Category Carbon Steel Carbon Steel
C (%) 0.20-0.30 0.22-0.29
Cr (%) <=0.15 <=0.25
Cu (%) <=0.15 <=0.25
Mn (%) 0.30-0.60 0.50-0.80
Mo (%) <=0.05 Not specified
Ni (%) <=0.15 <=0.30
P (%) <=0.035 <=0.035
S (%) <=0.035 <=0.035
Si (%) Not specified 0.17-0.37
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) 25C4 GB/T 699 25
Hardness, annealed (+AC) <=150 HBW Not specified
Tensile Strength Not specified >=450 MPa
Yield Strength Not specified >=275 MPa
Elongation Not specified >=23%
Condition Not specified Normalized 25 mm sample blank, bars up to 80 mm; hardness for delivery state
Typical Applications
IS 11169 (Part 1) 25C4
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)
GB/T 699 25
Hot-rolled or forged quality carbon structural steel bars up to 250 mm
Key Differences
Can IS 11169 (Part 1) 25C4 Be Substituted With GB/T 699 25?
IS 11169 (Part 1) 25C4 and GB/T 699 25 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) 25C4
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GB/T 699 25
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Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 25C4 and GB/T 699 25?
IS 11169 (Part 1) 25C4 specifies Mo which is not specified for GB/T 699 25. GB/T 699 25 specifies Si which is not specified for IS 11169 (Part 1) 25C4.
Can IS 11169 (Part 1) 25C4 be substituted with GB/T 699 25?
IS 11169 (Part 1) 25C4 and GB/T 699 25 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.