How to Supply Consistent Quality

Providing reliable quality and secure tool is Tien-I core value as the manufacturer. To do so, Tien-I QC team have attended SGS training program. Tien-I products are fully up to DIN, ISO, and ANSI/ASTM international standards.

Also, we have the certificates ISO 9001, ROHS. Our factory pass Intertek Audit. We also earned Taiwan Excellence Reward in 2016.

Seeing is believing. Welcome to visit our factory and meet our QC. Team.

Contact Tien-I

Our Certificate :

Our Lab Equipment :

Right material is critical for quality tool and that’s why we can offer the origin and chemical properties certificates of raw material for you.

Tien-I has extensive expertise in metal components involving all grades of alloy steels, such as 50BV30, SCM440, and SNCM439, S45C, 8660…etc.

The material source is key. Tien-I is the member of China Steel Corporation (CSC), the largest and highest quality steel company in Taiwan.

We also cooperated with other excellent international steel companies including Nippon Steel Corporation in order to provide special alloy steel for your various designs.

• Cr-Mo Steels
• Carbon Steels
• Alloy Tool Steels
• Free Cutting Steels
• Medium-Carbon Alloy Steels

Standard			CHEMICAL COMPOSITION
JIS	ANSI	DIN	C	Si	Mn	P	S	Ni	Cr	Mo	V
SCM435	4130
SCM440	4140	42CrMo4	0.38-0.43	0.15-0.35	0.60-0.85	≦0.030	≦0.030	-	0.90-1.20	0.15-0.30	-

Standard			CHEMICAL COMPOSITION
JIS	ANSI	DIN	C	Si	Mn	P	S	Ni	Cr	tot	V
SWRCH8	1008		≦0.08	-	≦0.60	≦0.040	≦0.040	-	-	-	-
S15C	1015	CK15	0.13-0.18	0.15-0.35	0.30-0.60	≦0.030	≦0.035	-	-	-	-
S45C	1045	CK45	0.42-0.48	0.15-0.35	0.60-0.90	≦0.030	≦0.035	-	-	-	-

Standard			CHEMICAL COMPOSITION
JIS	ANSI	DIN	C	Si	Mn	P	S	Ni	Cr	Mo	V
	S2 M		0.65-0.70	1.00-1.25	0.45-0.60	≦0.025	≦0.025	-	0.10-0.30	0.40-0.50	0.15-0.25

Standard			CHEMICAL COMPOSITION
JIS	ANSI	DIN	C	Si	Mn	P	S	Ni	Cr	Mo	Pb
SUM43	1144		0.40-0.48	-	1.35-1.65	≦0.040	0.24-0.33	-	-	-	-
S45CL	10L45		0.42-0.48	0.15-0.35	0.60-0.90	≦0.030	≦0.035	-	-	-	0.10-0.35

Standard			CHEMICAL COMPOSITION
JIS	CSC	DIN	C	Si	Mn	P	S	Ni	Cr	A1	V
	40ACR		0.40-0.44	≦0.10	0.60-0.90	≦0.030	≦0.030	-	0.20-0.40	≧0.010	-

• CR-V
• Ni-Cr-Mo Steels
• Spring Steels
• High C-Cr Steels (Bearing Steels)

Standard			CHEMICAL COMPOSITION
JIS	ANSI	DIN	C	Si	Mn	P	S	Ni	Cr	Mo	V
	50BV30		0.27-0.33	≦0.10	0.70-1.00	≦0.030	≦0.035	-	0.30-0.50	＞0.0005	0.10-0.50

Standard			CHEMICAL COMPOSITION
JIS	ANSI	DIN	C	Si	Mn	P	S	Ni	Cr	Mo	V
SNCM220	8620	21NiCrMo2	0.17-0.23	0.15-0.35	0.60-0.90	≦0.030	≦0.030	0.40-0.70	0.40-0.65	0.15-0.30	-
	8660+V		0.56-0.64	0.15-0.35	0.75-1.00	≦0.035	≦0.040	0.40-0.70	0.40-0.60	0.15-0.25	0.15-0.25

Standard			CHEMICAL COMPOSITION
JIS	ANSI	DIN	C	Si	Mn	P	S	Ni	Cr	Mo	V
SUP10	6150	50CrV4	0.47-0.55	0.15-0.35	0.65-0.95	≦0.035	≦0.035	-	0.80-1.10	-	0.15-0.25

Standard			CHEMICAL COMPOSITION
JIS	ANSI	DIN	C	Si	Mn	P	S	Ni	Cr	Mo	V
SUJ2	52100	100Cr6	0.95-1.10	0.15-0.35	≦0.50	≦0.025	≦0.025	-	1.30-1.60	-	-

Heat treatment is a method to change the hardness and sometime chemical properties of material. Suitable heat-treatment is the balance between cost and life-durability.

Tien-I have three main types of heat treatment:
- Continuous Heating Furnace
- Batch Heating Furnace
- Vacuum Heat Treatment Furnace