Can S35C be flame or induction hardened?

Yes — at 0.35% carbon it responds to surface hardening to roughly 45–52 HRC, a common low-cost route for wear tracks on shafts and rails.

Grades · Carbon Steel · S35C

S35C

Data verified

S35C is the JIS medium-carbon steel matching AISI 1035 / EN C35 — the entry point of the genuinely heat-treatable carbon steels, used for small shafts, bolts and machine parts across Japanese and Asian machinery production.

DINC35 (1.0501)

AISI1035

JISS35C (JIS G4051)

CategoryCarbon Steel

Chemical composition

Element	Content (%)
C	0.32–0.38
Si	0.15–0.35
Mn	0.60–0.90
P	≤0.030
S	≤0.035

Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.

Properties

Tensile strength	≥510 MPa (normalized, JIS reference)
Density	7.85 g/cm³

Heat treatment

Normalize 850–880 °C; quench ≈850 °C in oil or water for small sections; temper 550–650 °C.

Equivalent grades

Standard	Designation
din	C35 (1.0501)
aisi	1035
jis	S35C (JIS G4051)
gb	35

Compare side by side: S35C vs 1035

Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.

Applications & Processing

Applications: Small shafts, studs and bolts, levers, machine keys, agricultural machinery parts.

Processing: Machines well normalized; water/oil quench only in thin sections — for reliable through-hardening in larger sections step up to SCM435/4140-class alloy steel.

FAQ

Can S35C be flame or induction hardened?: Yes — at 0.35% carbon it responds to surface hardening to roughly 45–52 HRC, a common low-cost route for wear tracks on shafts and rails.

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Source: JIS G4051 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.