Applications

Tianchen cold-drawn steel for linear guide rails delivers the dimensional accuracy and surface finish that precision motion demands. With tolerances as tight as h8 grade, our guide rail steel ensures smooth, repeatable movement in every application — from CNC machining centers to semiconductor equipment.

Key Products:

• Special-shaped guide rail profiles: 50 / 60 / 86 / 100 series

• Precision round bar: h8 / h9 grade

As green construction standards rise globally, Tianchen provides cold-drawn structural steel with consistent dimensional tolerances that reduce on-site waste and rework. Our low-carbon steel profiles support sustainable building certifications while maintaining the structural integrity demanded by modern architecture.

Key Products:

• Cold-drawn flat bar (Grade D / S235JR): 10×40mm, 6×42mm (h11)

• High-strength bolts: M30 / M36 / M39 / M45 / M52 / M60

• Customized structural special profiles to drawing

High-speed rail and urban transit systems demand steel that performs under constant dynamic load. Tianchen rail steel undergoes rigorous straightness, hardness, and fatigue testing to meet the exacting standards of China's high-speed rail network and international railway projects. Trusted by major rail infrastructure contractors across Asia and Europe.

Key Products:

• High-carbon cold-drawn round bar: 1065 / C66D / 1084 / C86D

• Spring steel profiles: 9260 / 61SiCr7 / 6150 / 51CrV4

• Precision steel for railway fastening components

Power tool manufacturers require steel shafts and internal components that withstand high-speed rotation, shock loads, and repeated stress cycles. Tianchen's bright-finished cold-drawn steel delivers tight tolerances and excellent machinability, reducing tool wear and production cost for power tool OEMs worldwide.

Key Products:

• Cold-drawn round bar: C45 / 40Cr / 42CrMo4

• Hexagonal bar: S6 ~ S75 (for drill bits & sockets)

• Free-cutting steel: 1215 / 12L14 / 11SMn37 / 11SMnPb37

From automated assembly lines to precision measuring systems, intelligent manufacturing equipment relies on steel components that maintain dimensional stability over millions of operating cycles. Tianchen's high-precision cold-drawn steel provides the consistency and reliability that smart device OEMs demand as they scale production.

Key Products:

• Precision round bar: h8 grade (±0.01mm tolerance)

• Special-shaped profiles for automation fixtures

• Slider module steel: 15 / 20 / 25 / 30 / 35 / 45 series

Industrial and service robots require lightweight yet rigid steel components with exceptional dimensional accuracy. Tianchen supplies precision cold-drawn profiles for robot arm structures, joint shafts, and drive components — engineered to reduce backlash, minimize vibration, and extend service life in high-cycle robotic applications.

Key Products:

• Alloy round bar: 4142 / 42CrMo4 / 4340 / 36CrNiMo4

• High-precision flat bar for robotic linear axes

• Custom profiles for robotic end-effectors

From seat adjustment systems to engine components and transmission shafts, Tianchen automotive-grade cold-drawn steel meets IATF 16949 quality management standards. Our steel has been adopted by Tesla seat system suppliers — proving its reliability in the world's most demanding automotive supply chains.

Key Products:

• Bearing steel: SAE52100 / 100Cr6 (h8 / h9)

• Alloy steel: 4142 / 42CrMo4 (1.7225)

• Spring steel: 6150 / 51CrV4 (for suspension components)

Marine environments demand steel that resists saltwater corrosion, high humidity, and extreme mechanical stress. Tianchen's cold-drawn stainless steel profiles deliver superior surface finish and tight dimensional tolerances for shipboard structural components, deck fittings, and marine engineering equipment. Proven on CSSC's 70,000-tonne floating dock project.

Key Products:

• Cold-drawn stainless round bar: 304 / 316 / 1.4301 / 1.4401

• Stainless flat bar & special-shaped profiles

• Duplex stainless steel profiles (on request)

Nuclear power plants, thermal generators, and transmission infrastructure require steel components with zero tolerance for dimensional variation. Tianchen has supplied precision cold-drawn steel to Shanghai Electric Power's million-kilowatt nuclear unit — a benchmark of reliability in the most demanding power generation applications.

Key Products:

• High-strength alloy bar: 4135 / 34CrMo4 (1.7220) / 4142 / 42CrMo4 (1.7225)

• Precision shaft steel for generator components

• Custom cold-drawn profiles for transformer & switchgear assemblies