316L Stainless Steel Tube — Seamless & Precision
SHENZHEN BENXIN ELECTRONIC HARDWARE CO., LTD
Product Details
Keywords: stainless steel tube 316l, seamless stainless steel tube, precision seamless tube
Product Overview
When corrosion resistance matters most, 316L is the grade to specify. The low-carbon 316L chemistry improves weldability and resistance to intergranular corrosion, making it the preferred choice for marine, chemical, pharmaceutical and food-contact systems. We supply seamless stainless steel tube in 316L with precise outer diameter, wall thickness and surface finish — manufactured and fully inspected in our own tube plant.
Key Features
- Grade 316L — molybdenum-enhanced pitting and crevice corrosion resistance
- Seamless construction — no weld seam, ideal for pressure and high-purity lines
- Precision seamless tube — close OD and wall tolerances for instrumentation and mechanical use
- Low carbon (L) — superior weldability, reduced sensitization risk
- Smooth surfaces — bright annealed, pickled or electropolished options
- Traceable material — heat numbers and mill certificates available
Applications
Ideal for marine hardware, chemical processing, desalination, pharmaceutical piping, heat exchangers, hydraulic and pneumatic lines, and any environment with chlorides, seawater or aggressive media.
Manufacturing & Factory Capability
Our seamless tube manufacturing capability includes:
- Hot extrusion & piercing — billets converted to tube shells under controlled process conditions
- Cold rolling & cold drawing — multi-pass reduction to reach final precision dimensions
- Bright annealing — controlled atmosphere annealing for consistent metallurgy and clean surfaces
- Pickling & passivation — oxide removal and passive layer restoration
- Straightening & cutting — precise straightness and cut-to-length service
- NDT testing — eddy current testing available for critical seamless orders
- In-house inspection — OD, wall, straightness and surface finish verified per batch
Customization & OEM/ODM
Available in metric and inch sizes with custom OD, wall thickness, length, finish (pickled / bright / polished / electropolished) and packaging. We also machine precision steel tube into finished components for OEM programs and produce custom sheet metal parts alongside tube supply.
Quality Assurance
Every batch is dimensionally inspected with calibrated micrometers and bore gauges; material test certificates and inspection reports support your documentation needs.
Why Choose Us
- Full seamless tube process chain under one roof
- Consistent 316L quality with traceable material
- Competitive factory pricing for volume and OEM supply
Request a quotation for seamless stainless steel tube 316L in your required sizes.
Frequently Asked Questions
Yes. We provide OEM/ODM custom manufacturing from your drawings in PDF, DWG, STEP, IGES or STL formats.
- What materials can you machine?
Aluminum, stainless steel (304/316), titanium alloy, copper, brass, POM, PEEK and other engineering plastics. - What is your tolerance standard?
General tolerance ±0.05mm, tight tolerance down to ±0.005mm upon request. - Can you provide material certificates & inspection reports?
Yes, 3.1 material cert, FAI, CMM inspection report are available. - What is your lead time?
Sample: 3–7 working days. Mass production: 7–15 working days, depends on complexity & quantity. - Do you support small batch & prototype orders?
Yes, we welcome prototype, low-volume and custom one-off parts. - What surface finishes can you offer?
Anodizing, sandblasting, passivation, polishing, powder coating, laser marking, deburring. - How do you handle shipping?
We support DHL, FedEx, TNT, sea freight, and can do DDP / DAP terms.
- Is there a minimum order quantity (MOQ)?
We have no strict MOQ. We accept prototype trial orders as low as 1 piece. - How can I get an accurate quotation?
Please send us your 3D STEP/IGES file, 2D drawing with tolerance, material requirement, quantity and surface finish. - Can you help with DFM optimization?
Yes. Our engineers provide free DFM suggestions to reduce machining cost and improve manufacturability. - How long is the quotation valid?
Quotation is normally valid for 30 days, subject to raw material price fluctuation.
Pricing depends on material, dimensions, tolerance, quantity and surface finish. Please send your drawings (PDF/DWG/STEP/IGES) and we will provide an exact quote, usually within 24 hours.
The price is based on material cost + machining time + surface treatment + tooling (if any) + packaging and freight.
Our standard quotes are FOB Shenzhen/Dongguan unless otherwise stated. Air or sea freight can be quoted separately according to your destination.
Our price reflects the material grade, tolerance level, full inspection and finishing quality. If needed, we can suggest cost-saving design changes (e.g. relaxing non-critical tolerances) to reduce the cost.
Yes. We provide tiered pricing — the unit price decreases as the quantity increases. Please tell us your target quantity for the best price.
