Equivalent grades: GB/T 699 grade 35 runs C 0.32–0.39% against the SAE 1035 window of 0.32–0.38% — for practical purposes interchangeable.

Grades · Carbon Steel · 35

35

Data verified

35 is the GB/T 699 equivalent of AISI 1035 / JIS S35C, a medium-carbon machinery steel widely stocked in China as round bar for general shafts and fasteners.

DIN1.0501 (C35)

AISI1035

JISS35C

CategoryCarbon Steel

Chemical composition

Element	Content (%)
C	0.32–0.39
Si	0.17–0.37
Mn	0.50–0.80
P	≤0.035
S	≤0.035
Cr	≤0.25

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

Properties

Tensile strength	≥530 MPa (GB/T 699 reference, normalized blank)
Yield strength	≥315 MPa (reference)
Density	7.85 g/cm³

Heat treatment

Normalize or quench-and-temper; induction hardening gives a wear-resistant surface on shafts.

Equivalent grades

Standard	Designation
din	1.0501 (C35)
aisi	1035
jis	S35C
gb	35 (GB/T 699)

Compare side by side: 35 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: Shafts, bolts, connecting parts, hand tools, agricultural machinery.

Processing: Machines well; welding needs preheat at this carbon level.

FAQ

GB 35 vs AISI 1035?: Equivalent grades: GB/T 699 grade 35 runs C 0.32–0.39% against the SAE 1035 window of 0.32–0.38% — for practical purposes interchangeable.

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Source: GB/T 699-2015 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.