Large Diameter Thin Wall CDW steel tube Ø100*1-Jiangsu Suao Metal Product Co., Ltd.

Large Diameter Thin Wall CDW steel tube Ø100*1

Large Diameter Thin Wall Cold Drawn Welded Tube – Ø100×1mmPrecision Thin-Wall Tubing for Lightweight Structural ApplicationsProduct Specifications

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Parameter	Specification	Tolerance
Outer Diameter (OD)	100mm (±0.15mm)	DIN 2393 h9
Wall Thickness	1.0mm (±0.05mm)	DIN 2393 ±5%
Length	1-7m (custom up to 12m)	Straightness ≤0.5mm/m
Material Grade	ST37-2 / ST52-3 / E355	EN 10305-2
Surface Finish	Smooth (Ra ≤1.2μm)	Optional polished

Expanded Size Range & Specifications

OD (mm)	Wall Thickness (mm)	Standard Length	Tolerance	MOQ
50-80	0.8-1.5	2-7m	±0.10mm	200kg
82-120	1.0-2.0	2-7m	±0.15mm	150kg
121-180	1.2-3.0	2-7m	±0.20mm	100kg
182-250	1.5-4.0	2-6m	±0.25mm	50kg
251-299	2.0-5.0	2-6m	±0.30mm	30kg

Key Notes:

·All sizes available in ST37-2, ST52-3, E355
·Custom lengths up to 12m (straightness ≤1mm/m)
·Special tolerances available (±0.05mm wall, ±0.03mm OD)

Competitive Advantage

Parameter	Our Tube	Industry Standard	Seamless Tube
OD Tolerance	±0.1mm	±0.30mm	±0.50mm
Wall Variation	±2%	±10%	±8%
Lead Time	2-3 weeks	4-6 weeks	6-8 weeks

Key Benefits

·40% Weight Reduction vs. standard wall tubes
·Ready-to-Weld – Clean, oxide-free surface (Sa 2.5)
·Batch Traceability – Full EN 10204 3.1 certification

Packaging Solutions

Type	Capacity	Special Features
VMI Racks	200 tubes	RFID tracking, JIT delivery
Anti-Crush Boxes	50 tubes	Humidity-controlled
Eco Packs	100 tubes	Recyclable PET straps

Production Process

1. Material Selection
·Cold-rolled steel strip (EN 10139) with controlled chemistry
·Ultrasonic-cleaned surface (Sa 2.5 standard)
2. Precision Welding
·High-frequency induction welding (400kHz)
·In-line seam annealing for uniform grain structure
3. Cold Drawing
·3-stage drawing process with 18% reduction
·Special mandrel support for thin-wall integrity
4. Quality Control
·100% eddy current testing (EN 10246-1)
·Laser micrometer measurement (±0.02mm)
·Hydrostatic testing (optional, up to 150bar)

Technical Comparison

Feature	Our Ø100×1mm Tube	Standard CDW Tube
Wall Consistency	±0.03mm	±0.10mm
Ovality	≤0.1% OD	≤0.3% OD
Yield Strength	20% higher	Standard
Surface Roughness	Ra 0.8-1.2μm	Ra 1.5-2.5μm

Key Advantages

·Weight Savings: 30% lighter than conventional tubes
·Precision Fit: Ideal for telescoping assemblies
·Cost Effective: 15-20% cheaper than seamless alternatives
·Ready to Use: No secondary machining required

Typical Applications

·Aerospace components (non-critical structures)
·Medical equipment frames
·Solar panel mounting systems
·Exhibition display architectures
·Robotics arm conduits

Packaging Options

Type	Qty per Bundle	Protection
Wooden Crate	50 tubes	Waterproof wrapping
Steel Strip Pack	100 tubes	Edge guards
Custom VMI Rack	200+ tubes	RFID tagged