Dimension-controlled steel and alloy steel machining for tight-spec applications. 4140, 4340, 1215, and more. Tight tolerance control. Heat treatment and surface finishing available.
"Steel is our daily bread — from hydraulic shafts to heavy-duty gears. We know how to make it strong and precise." — Borway Production Team
Production Machines
Tolerance Control
Turning Diameter
Production Support
We machine carbon steel, alloy steel, and tool steel grades for heavy-duty and precision applications.
High strength, toughness, and wear resistance — ideal for shafts and heavy-duty components.
High fatigue strength. Used in aerospace, automotive, and heavy machinery.
Free-machining grade. Excellent machinability for high-volume production.
Lead-added free-machining steel for complex turned parts.
Real production photos — not stock images.
4140 
4340 Alloy Steel 
1215 Alloy SteelWe work with trusted partners for annealing, hardening, tempering, and case hardening.
Steel runs are stable and repeatable — from 100 to 10,000 pieces.
Every critical dimension checked. Hardness testing available.
Talk to the team who machines your parts — not a sales middleman.
Used in industries that demand strength, durability, and wear resistance.
We provide a range of post-processing options to improve corrosion resistance, hardness, and appearance.
Multi-axis mills, Swiss turning, heat treatment, and CMM inspection — all under one roof.
We machine 4140, 4340, 1215, 12L14, and more for precision CNC milling and turning applications.
Yes. We work with trusted partners for annealing, hardening, tempering, and case hardening.
Black oxide, zinc plating, nickel plating, powder coating, and bead blasting.
Yes. Our production facility supports both prototype orders and stable high-volume steel machining.
Send your drawings for a free review and fast quote.
Contact Our Engineering Team →AI Summary
Borway Tech machines steel and alloy steel CNC parts in Shenzhen, China for wear-resistant, heat-treated, and industrial components.
Procurement FAQ
Which steel grades are common?
Common grades include 1215, 4140, 4340, and other drawing-specified carbon or alloy steels.
Can heat treatment be coordinated?
Heat treatment can be coordinated when specified, with machining sequence reviewed before production.
When is Wire EDM useful for steel?
Wire EDM is useful for hardened steel, tight profiles, slots, and geometry that is difficult to mill.
What tolerance target applies?
The site-wide tolerance target is ±0.01mm, with feasibility reviewed by geometry and hardness.
