Case

Overview
Custom thin‑wall stainless steel tubes for industrial instrumentation application.

• Material：316L seamless stainless steel
• Size：1/4″ & 1/2″，wall thickness 1.5mm
• Length：6m straight tube
• Service：Cut‑to‑length, end deburred
• Application：Sensor & instrument equipment

Industry: Industrial Instrumentation / Sensor Equipment Project Type: Custom Tube Processing (OEM) Material: 316L Seamless Stainless Steel

Project Overview

We supplied custom thin-wall stainless steel tubes for a sensor and instrument equipment manufacturer, processed from 316L seamless material to meet the requirements of industrial instrumentation applications. Every tube was cut to length and end-deburred in-house, ready for the customer’s compression fitting and assembly line.

The Challenge

The customer’s instrumentation assembly required tubes that had to perform reliably in demanding sensing environments, which translated into four strict requirements:

1. 316L seamless material – corrosion resistance and structural integrity for sensing environments
2. Thin wall (1.5 mm) – compact fit inside instrument housings and fittings
3. Consistent OD over full length – reliable sealing with compression-type fittings
4. Burr-free, square cut ends – prevents leakage points and debris contamination in the system

Cutting with a standard saw or grinder would have left burrs and heat discoloration, which is unacceptable for instrument-grade tubing. The customer needed a partner who could cut, deburr, and inspect to tight tolerances, not just supply raw tube.

Our Solution

Material: 316L seamless stainless steel Outer Diameter: 1/4″ and 1/2″ Wall Thickness: 1.5 mm Stock Length: 6 m straight tube Processing: Cut-to-length per drawing, end deburred (ID and OD), chamfered ends Surface: Clean cut zones, free of burrs and heat discoloration

Value-added services included:

• Precision cut-to-length to tight tolerances per your drawing
• Inside and outside edge deburring, so no secondary finishing is needed at your site
• Sample approval before mass production

Quality Control

• Material traceability: heat number and mill certificate (EN 10204 3.1) provided with every batch, giving full traceability from mill to finished tube
• Dimensional inspection: OD, wall thickness, and length verified with calibrated micrometers and vernier calipers; inspection records kept per batch
• Surface and edge check: 100% visual inspection for burrs, scratches, and contamination
• Quality system: produced under our ISO 9001 quality management system; inspection report included with shipment

Production and Delivery

• Delivered on schedule, with production confirmed at quotation
• Packed with protective end caps and bundle strapping to prevent damage and contamination in transit
• Shipping terms: EXW / FOB Shenzhen; export documents and packing list provided

Why the Customer Chose Us

• 14 years of precision machining and metal fabrication experience – tubes are processed by a factory, not a trading company
• One-stop processing: cutting, deburring, and inspection all in-house; no subcontracting, no coordination overhead
• Full documentation: material certificates and inspection reports support the customer’s own quality audits
• Fast, direct communication: samples and drawings confirmed before production; modifications handled quickly

Let’s Talk About Your Tube Project

Whether you need instrument tubes, custom tube processing, or complete fabricated assemblies, we can match your drawing, from material selection to finished, inspected parts. Send us your drawing and quantity for a quotation.

Industry: Industrial Instrumentation / Sensor Equipment Project Type: Custom Tube Processing (OEM) Material: 316L Seamless Stainless Steel
Project Overview