Strong Match — 92.9% match
based on chemical composition and mechanical property overlap.
JIS G3506 S80C (JIS G3506:2004) and JIS G3506 SWRH77B (JIS G3506:2004) are both steel grades.
Both fall under the Carbon Steel category.
JIS G3506 S80C is typically used for springs, high carbon wire, hand tools, while JIS G3506 SWRH77B is commonly used for high-carbon hard-drawn steel wire rod (sw-c class, 0.80% c); used for hard-drawn steel wire, oil-tempered wire, prestressed concrete (pc) wire/strand, galvanized wire strands, wire rope, springs, tire bead wire.
JIS G3506 S80C is defined under Japanese Industrial Standards (JIS), originating from Japan, while JIS G3506 SWRH77B is defined under Japanese Industrial Standards (JIS), originating from Japan.
As per chemical composition, JIS G3506 S80C vs JIS G3506 SWRH77B is a 92.9% 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 92.9%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
JIS G3506 S80C
JIS G3506 SWRH77B
Tensile Strength
≥820 MPa (annealed)
Not specified
Hardness HRC
60–65 (hardened)
Not specified
Typical Applications
JIS G3506 S80C
Springs, high carbon wire, hand tools
JIS G3506 SWRH77B
High-carbon hard-drawn steel wire rod (SW-C class, 0.80% C); used for hard-drawn steel wire, oil-tempered wire, prestressed concrete (PC) wire/strand, galvanized wire strands, wire rope, springs, tire bead wire
Can JIS G3506 S80C Be Substituted With JIS G3506 SWRH77B?
JIS G3506 S80C and JIS G3506 SWRH77B overlap closely enough on chemistry and mechanical properties that JIS G3506 SWRH77B is often considered as a substitute for JIS G3506 S80C in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between JIS G3506 S80C and JIS G3506 SWRH77B?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can JIS G3506 S80C be substituted with JIS G3506 SWRH77B?
JIS G3506 S80C and JIS G3506 SWRH77B overlap closely enough on chemistry and mechanical properties that JIS G3506 SWRH77B is often considered as a substitute for JIS G3506 S80C in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.