Quality Policy

Providing reliable quality and safe tools is our core value as a metal manufacturer. The parts are all manufactured under professional production process in Taiwan, and accorded with the most strict quality requirements. Tien-I Q.C. stuff have received standard training offered by SGS institution. Beside, Tien-I earned ISO9001 certification in 2006 and also meet the third party each year.

Quality Policy

Tien-I's regular items are fully up to DIN, ISO, and ANSI international standards. Our clients around the world include professional vehicle manufacturer in Europe and several professional brands in America. Hence, this fact demonstrates our products' quality can meet the strictest standards from vehicle companies.

Seeing is believing. We truly welcome you to visit our factory and meet our experienced Quality Control team.

Our Certificate :

ISO 9001:2008 INTERTEK MADE IN TAIWAN Taiwan Excellence

Our Lab Equipment :

Humidity test machine Torsion test machines Hardness machines Optical Projector Measure Specification Complete and sophisticated Gauges
Full Lot Traceability

Documentation

We provide traceability for each shipment. According to your request, we can offer different quality reports for you and your clients’ concerns. We are fully dedicated to safeguarding confidential and sensitive customer information at all times.

Documentation
Material Quality
Heat Treatment

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

China Steel CorporationMost of our raw material come from the China Steel Corporation, the largest steel company with the highest quality in Taiwan. Long-term Supply-chain relationship with CSC demonstrates that the quality of our products is very stable and reliable.

Nippon Steel CorporationWe also have cooperated with other excellent international steel companies including Nippon Steel Corporation, so we can provide special alloy steel to meet your various designs. We can offer the origin and chemical properties certificates of our raw material for your reference.

Our Material Compoinents

StandardCHEMICAL COMPOSITION
JISANSIDINCSiMnPSNiCrMoV
SCM4354130
SCM440414042CrMo40.38-0.430.15-0.350.60-0.85≦0.030≦0.030-0.90-1.200.15-0.30-
StandardCHEMICAL COMPOSITION
JISANSIDINCSiMnPSNiCrtotV
SWRCH81008≦0.08-≦0.60≦0.040≦0.040----
S15C1015CK150.13-0.180.15-0.350.30-0.60≦0.030≦0.035----
S45C1045CK450.42-0.480.15-0.350.60-0.90≦0.030≦0.035----
StandardCHEMICAL COMPOSITION
JISANSIDINCSiMnPSNiCrMoV
S2 M0.65-0.701.00-1.250.45-0.60≦0.025≦0.025-0.10-0.300.40-0.500.15-0.25
StandardCHEMICAL COMPOSITION
JISANSIDINCSiMnPSNiCrMoPb
SUM4311440.40-0.48-1.35-1.65≦0.0400.24-0.33----
S45CL10L450.42-0.480.15-0.350.60-0.90≦0.030≦0.035---0.10-0.35
StandardCHEMICAL COMPOSITION
JISCSCDINCSiMnPSNiCrA1V
40ACR0.40-0.44≦0.100.60-0.90≦0.030≦0.030-0.20-0.40≧0.010-
StandardCHEMICAL COMPOSITION
JISANSIDINCSiMnPSNiCrMoV
50BV300.27-0.33≦0.100.70-1.00≦0.030≦0.035-0.30-0.50>0.00050.10-0.50
StandardCHEMICAL COMPOSITION
JISANSIDINCSiMnPSNiCrMoV
SNCM220862021NiCrMo20.17-0.230.15-0.350.60-0.90≦0.030≦0.0300.40-0.700.40-0.650.15-0.30-
8660+V0.56-0.640.15-0.350.75-1.00≦0.035≦0.0400.40-0.700.40-0.600.15-0.250.15-0.25
StandardCHEMICAL COMPOSITION
JISANSIDINCSiMnPSNiCrMoV
SUP10615050CrV40.47-0.550.15-0.350.65-0.95≦0.035≦0.035-0.80-1.10-0.15-0.25
StandardCHEMICAL COMPOSITION
JISANSIDINCSiMnPSNiCrMoV
SUJ252100100Cr60.95-1.100.15-0.35≦0.50≦0.025≦0.025-1.30-1.60--

Heat Treatment

Heat treatment is a method used to alter the hardness and sometime chemical properties of a material. Various heat treating methods can enforce the whole body or focus on hardness of specific part. Currently, Tien-I have served three main types of heat treatment for different purposes.

- Continuous Heating Furnace
- Batch Heating Furnace
- Vacuum Heat Treatment Furnace

Heat Treatment
Environmental Friendly Plating

The surface treatment of metals increases their durability and improves their appearance. However, the traditional plating may cause serious environmental issue.

We hope to supply the products with quality as well as green.

That's why Tien-I have carefully choose the qualified plating factories which meet the government environmental regulation and also international ROHS requirements.

Environmental Friendly Plating
Made in Taiwan 100%
Made in Taiwan 100%

Tien-I most of products are made in Taiwan 100%.

Most of our raw material come from the China Steel Corporation (CSC), the largest steel company with the highest quality in Taiwan. The deceades Supply-chain relationship with China Steel Corporation demonstrates that quality of Tien-I chrome socket and impact sockets is stable and reliable. Compared with other hand tools supplier, Tien-I won't sacrifice our clients long-term benefit for the short-term cheaper price but unstable quality material.

With cold forge and hot forge heavy machines in Taiwan Kaohsiung and Taichung, Tien-I can control 100% of our forging parts quality with reasonable inventory for international customers seasonal change needs.

As a professional metal manufacturer, Tien-I have various metal processing capacities, from forging, stamping, CNC machining, heat treatment, and various surface treatments. The whole production is entirely carried out inTaiwan, Taichung. Tien-I have invested heavily on machines and molds to continuously optimize the production process. Tien-I currently supply over 20,000 SKUs products to our global clients from Taiwan.

Finally, during package last stage, Tien-I do the final product quality inspection 100% in-house to make sure the accurate products delivered to our customer hands. That's how we have confidence to claim 100% made inTaiwan by Tien-I.