TORICH INTERNATIONAL LIMITED
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability | 60000 Ton/Tons per Year |
| Delivery Time | 20-30days upon products |
| Packaging Details | In bundles or in wooden boxes. |
| Application | Motor Housing |
| Outer diameter | 20 - 426 mm |
| Thickness | 2 - 100 mm, |
| Technique | Cold Drawn,Hot Rolled,Cold Rolled,ERW,Hot Rolled/Cold Drawn |
| Surface treatment | Galvanized,customerized,Copper Coated,Null,polished |
| Section shape | Round,Rectangular |
| Length | 6M or as requirement,As customer's require, |
| Steel grade | 300 Series,200series 300series,STKM 11 A STKM13C |
| Brand Name | TORICH |
| Model Number | Thin Walled Tube |
| Certification | ISO9001 ISO 14001 TS16949 |
| Place of Origin | Zhejiang/China |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram | Supply Ability | 60000 Ton/Tons per Year |
| Delivery Time | 20-30days upon products | Packaging Details | In bundles or in wooden boxes. |
| Application | Motor Housing | Outer diameter | 20 - 426 mm |
| Thickness | 2 - 100 mm, | Technique | Cold Drawn,Hot Rolled,Cold Rolled,ERW,Hot Rolled/Cold Drawn |
| Surface treatment | Galvanized,customerized,Copper Coated,Null,polished | Section shape | Round,Rectangular |
| Length | 6M or as requirement,As customer's require, | Steel grade | 300 Series,200series 300series,STKM 11 A STKM13C |
| Brand Name | TORICH | Model Number | Thin Walled Tube |
| Certification | ISO9001 ISO 14001 TS16949 | Place of Origin | Zhejiang/China |
| High Light | Lightweight Stainless Steel Tube ，Corrosion Resistant Motor Housing Tube ，Thin-Walled Precision Steel Tube | ||
A thin-walled seamless stainless steel tube is a precision-manufactured hollow stainless component with a very small wall thickness relative to its diameter. The seamless process removes weld seams, ensuring uniform properties, improved reliability, and excellent performance in high-precision applications such as electric motor housings.
Outer Diameter (OD): approx. 1.0 mm up to 100 mm (varies by supplier)
Wall Thickness (WT): ultra-thin options from about 0.05 mm up to about 0.8 mm; regular thin-wall tubes may extend to several millimeters
Surface Finish: bright annealed, polished, or smooth cold-drawn finish
Manufacturing Process: cold-drawn or cold-rolled seamless tubing
Lightweight yet strong: Thin wall design reduces mass while maintaining structural integrity.
Corrosion & temperature resistance: Stainless alloys provide excellent resistance to oxidation, corrosion, and thermal exposure.
High dimensional precision: Seamless tubes offer tight tolerances, smooth internal/external surfaces, and excellent roundness.
Reliable structural performance: No weld seam eliminates seam-related weaknesses, improving fatigue and mechanical reliability.
Flexible customization: OD, WT, length, and finish can be tailored to suit different motor designs.
1. Weight Reduction
Customers often need lighter housings to improve motor efficiency and reduce inertia.
Advantage: We supply ultra-thin seamless tubes with extremely low wall thickness while preserving mechanical strength.
2. Reliability Under Vibration and Load
Motors experience continuous vibration and cyclic loads.
Advantage: Seamless construction provides superior uniformity and fatigue performance with no weld seam failures.
3. Corrosion and Environmental Durability
Motor housings in humid or chemically exposed environments require corrosion-resistant materials.
Advantage: We offer 304, 316L, duplex, and super-duplex grades with excellent corrosion resistance.
4. Precision for Tight Fits
Motor assemblies require accurate dimensions, smooth surfaces, and low friction.
Advantage: Cold-drawn production ensures high dimensional accuracy and excellent inner/outer surface quality.
5. Customization Flexibility
Different motors require different sizes and finishes.
Advantage: Wide range of OD/WT options and customizable finishes support diverse engineering needs.
| Grade | C (max) | Cr | Ni | Mo | Notes |
|---|---|---|---|---|---|
| 304 | 0.08% | ~18% | ~8% | — | Standard “18-8” stainless; widely used. |
| 304L | 0.03% | ~18% | ~8% | — | Low-carbon version; better corrosion resistance after forming. |
| 316 | 0.08% | ~17–18% | ~10–12% | ~2–3% | Higher resistance to chlorides and harsh environments. |
| 316L | 0.03% | ~16–18% | ~10–12% | ~2–3% | Preferred for corrosion resistance and weldability. |
| Duplex 2205 | low | ~22% | ~5% | ~3% | High strength and stress-corrosion resistance. |
| Grade | Tensile Strength (UTS) | Yield Strength (YS) | Notes |
|---|---|---|---|
| 304 (cold-worked) | ~500–650 MPa | ~200–300 MPa | Good balance of strength and ductility. |
| 304L | ~480–550 MPa | ~170–220 MPa | Lower carbon for corrosion resistance. |
| 316 (cold-worked) | ~500–650 MPa | ~200–300 MPa | Strong and corrosion-resistant. |
| Duplex 2205 | ~700–900 MPa | ~450–600 MPa | High strength for demanding conditions. |
| Super-Duplex 2507 | ~800–1000 MPa | ~500–650 MPa | For very harsh environments requiring premium durability. |
ASTM A312 – Seamless and welded austenitic stainless steel pipes
ASTM A269 – Seamless and welded austenitic stainless steel tubing for general service
EN 10216-5 – Stainless steel seamless tubes for pressure purposes
JIS G3459 – Stainless steel pipes for corrosion-resistant service
GB/T 14976 – Stainless steel seamless tubes for fluid transport
Used in aerospace components, chemical processing, precision mechanics, medical equipment, instrumentation tubing, and structural lightweight systems.
Motor outer casing: Lightweight and strong shell for electric motors.
Bearing support sleeves: High-precision inner surface ensures smooth bearing placement.
Cooling jackets: Corrosion-resistant thin-wall tubes suitable for fluid-cooled electric motors.
Structural reinforcements: Ideal for compact actuators and high-reliability assemblies requiring low mass and high rigidity.
A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock,
it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
1997
Total Annual:
25000000-30000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
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