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Carbon Steel

Steel Grade	Characteristics	Applications
S15C	This steel plate is the most widely used and cost-effective material for a variety of industrial applications.	Suitable for manufacturing connectors, crankshafts, shafts, gears, bolts and nuts, automotive and motorcycle parts, machine tools, mechanical components, and general mold plates.
S25C
S35C
S45C
S50C

※For carbon steel, we offer diverse products from Japan's Oji Steel ( PDF PDF Catalog Download), and Taiwan's China Steel.
※Inquiries are welcome for steel grades not listed in the table or for round bar requirements.

Steel Grade Composition and Mechanical Properties

Steel Grade	Composition									Mechanical Properties
Steel Grade	C	Si	Mn	P	S	Cu	Ni	Cr	Ni+Cr	Yield Point N/mm²	Tensile Strength N/mm²	Elongation %	Reduction of Area %	Impact Value J/cm²	Hardness HB
S15C	0.13~0.18	0.15~0.35	0.30~0.60	MAX 0.030	MAX 0.035	MAX 0.30	MAX 0.20	MAX 0.20	MAX 0.35	MIN 235	MIN 370	MIN 30	_	_	111~167
S25C	0.22~0.28	0.15~0.35	0.30~0.60	MAX 0.030	MAX 0.035	MAX 0.30	MAX 0.20	MAX 0.20	MAX 0.35	MIN 265	MIN 440	MIN 27	_	_	123~183
S35C	0.32~0.38	0.15~0.35	0.60~0.90	MAX 0.030	MAX 0.035	MAX 0.30	MAX 0.20	MAX 0.20	MAX 0.35	MIN 390	MIN 570	MIN 22	MIN 55	MIN 98	167~235
S45C	0.42~0.48	0.15~0.35	0.60~0.90	MAX 0.030	MAX 0.035	MAX 0.30	MAX 0.20	MAX 0.20	MAX 0.35	MIN 490	MIN 690	MIN 17	MIN 45	MIN 78	201~269
S50C	0.47~0.53	0.15~0.35	0.60~0.90	MAX 0.030	MAX 0.035	MAX 0.30	MAX 0.20	MAX 0.20	MAX 0.35	MIN 540	MIN 740	MIN 15	MIN 40	MIN 69	212~277

※Mechanical Properties: S15C and S25C reflect normalized heat treatment properties; S35C, S45C, and S50C reflect quenched and tempered heat treatment properties.

Steel Grade Cross-Reference Table

Japanese Industrial Standards (JIS)	American Iron and Steel Institute (AISI) American Society for Testing and Materials (ASTM) Society of Automotive Engineers (SAE)	German Institute for Standardization (DIN)
S15C	1015	1.1141
S25C	1025	1.1158
S35C	1035	1.1183
S45C	1045	1.1191
S50C	1050	1.1213

New Taipei Headquarters

No. 120, Wugong 1st Rd., Wugu Dist., New Taipei City 248, Taiwan

+886-2-2298-0101

+886-2-2298-2982

ctos@ms15.hinet.net

Taichung Branch

No. 13, Industrial Park 8th Rd., Xitun Dist., Taichung City 407, Taiwan

+886-4-2359-0962

+886-4-2359-1048

ctsm@ms23.hinet.net

Kaohsiung Branch

No. 4, Dadi St., Xiaogang Dist., Kaohsiung City 812, Taiwan

+886-7-802-0204

+886-7-801-9096

ctos.kao@msa.hinet.net

Original Manufacturer Website Link

ChenTai Special Steel Corp. - Specializing in Special Steels, Materials for Semiconductor Manufacturing and Medical Devices, Stainless Steels, Super Alloys, Special Alloys, Tool Steels, Die Steels, Mold Steels, Structural Steels, Alloy Steels, and Carbon Steels
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