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

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

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

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