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IS 1570 (Part 2/Sec 1) 55C4 vs AISI 1055

Strong Match — 94.3% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 2/Sec 1) 55C4 (IS 1570 (Part 2/Sec 1):1979) and AISI 1055 are both steel grades. Both fall under the Carbon Steel category. IS 1570 (Part 2/Sec 1) 55C4 is typically used for springs, knives, hand tools, agricultural tools, wear-resistant parts, while AISI 1055 is commonly used for springs, hand tools, high strength wire. IS 1570 (Part 2/Sec 1) 55C4 is defined under Bureau of Indian Standards (IS), originating from India, while AISI 1055 is defined under AISI, originating from United States.

As per chemical composition, IS 1570 (Part 2/Sec 1) 55C4 vs AISI 1055 is a 94.3% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 94.3%.

Frequently Compared With IS 1570 (Part 2/Sec 1) 55C4:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 060A57 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 070M55 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 060A32
Match Breakdown
CHEMISTRY MATCH
94.3%
MECHANICAL MATCH
No shared data
OVERALL
94.3%
Specifications
Property IS 1570 (Part 2/Sec 1) 55C4 AISI 1055
Standard IS 1570 (Part 2/Sec 1):1979 AISI
Category Carbon Steel Carbon Steel
C (%) 0.50-0.60 0.50–0.60
Mn (%) 0.30-0.60 0.60–0.90
S (%) Not specified ≤0.050
P (%) Not specified ≤0.030
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 2/Sec 1) 55C4 AISI 1055
Condition Not specified Hot Rolled
Tensile Strength Not specified 700-750 MPa
Yield Strength Not specified 380-450 MPa
Elongation Not specified 12-16%
Hardness Not specified 197-220 HB
Typical Applications
IS 1570 (Part 2/Sec 1) 55C4
springs, knives, hand tools, agricultural tools, wear-resistant parts
AISI 1055
Springs, hand tools, high strength wire
Key Differences
Can IS 1570 (Part 2/Sec 1) 55C4 Be Substituted With AISI 1055?
IS 1570 (Part 2/Sec 1) 55C4 and AISI 1055 overlap closely enough on chemistry and mechanical properties that AISI 1055 is often considered as a substitute for IS 1570 (Part 2/Sec 1) 55C4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
IS 1570 (Part 2/Sec 1) 55C4
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 5300–6600 mm (208.66–259.84 in)
AISI 1055
Round Bar → (3 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 6400–7000 mm (251.97–275.59 in)
On M-EX Right Now
IS 1570 (Part 2/Sec 1) 55C4
2 active listings and RFQs →
AISI 1055
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 2/Sec 1) 55C4 and AISI 1055?
AISI 1055 specifies S, P which are not specified for IS 1570 (Part 2/Sec 1) 55C4.
Can IS 1570 (Part 2/Sec 1) 55C4 be substituted with AISI 1055?
IS 1570 (Part 2/Sec 1) 55C4 and AISI 1055 overlap closely enough on chemistry and mechanical properties that AISI 1055 is often considered as a substitute for IS 1570 (Part 2/Sec 1) 55C4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.