3/16 1/4in Car Chassis Part Master Cylinder Front Rear Left Right Zinc Galvanized Pvf Coated Pair Steel Stainless Steel Bundy Tube Metal Brake Hard Line Pipe

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Product Description

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Basic Info

Type:Brake Hose / Steel Brake Tube
Material:Steel / Low Carbon Steel
Position:Front, Rear, Left, Right
Certification:ISO/TS16949, IATF-16949, ISO9001, DOT
Thickness:0.70mm
OD Range:4.76mm ~ 12.7mm (3/16" to 1/2")
Surface Treatment:Copper, White Zinc, Yellow Zinc, PVF Coated
Standard:ASTM A254, SAE J527, DIN 74234
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Product Description

3/16in Car Chassis Part Master Cylinder Front Rear Left Right Zinc Galvanized PVF Coated Pair Steel Stainless Steel Bundy Tube Metal Brake Hard Line Pipe

Brake Hard Line Pipe
  • Welded steel pipe / bundy tube / bundy pipe
  • Diameter: 3/16', 6mm, 1/4', 5/16', 3/8 etc.
  • Wall thickness: 0.7±0.05mm
  • Surface treatment: White Zinc, Copper, Yellow Zinc, Olive Green, PVF etc.
  • Type: Single wall (refrigeration) and double wall (automobile brake system)
  • Double-walled, steel alloy tubing used in pre-made lines for fluid transfer systems.
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Technical Parameters

Parameter Specifications
Product Name Double wall Flexible Automotive chassis Hot Dipped Galvanized welded zinc coated Carbon Steel Brake Hose Oil Line Bundy Pipe Fuel Iron Tube
Standard SAE J527, ASTM A254, TSE 5130, DIN 74234
Outer Diameter 4.2 / 4.76 / 6.0 / 6.35 / 8 / 9.53 / 10 / 12 / 12.7mm
Wall Thickness 0.5 / 0.7 / 1.0mm
Surface Treatment Galvanization: white zinc, Olive-drab zinc, Celadon zinc, colored zinc; PVF coated
Features High Pressure resistance, High formability, High internal cleanliness, High vibration resistance
TYPE Imperial A O.D (Inches) Wall thickness O.D (mm) Wall thickness (mm)
Double wall 1/8 0.125'' 0.028'' 3.17mm 0.71mm
Double wall 3/16 0.187'' 0.028'' 4.76mm 0.71mm
Double wall 1/4 0.250'' 0.028'' 6.35mm 0.71mm
Double wall 5/16 0.312'' 0.028'' 7.79mm 0.71mm
Double wall 3/8 0.375'' 0.028'' 9.52mm 0.71mm
Double wall 1/2 0.500'' 0.028'' 12.7mm 0.71mm
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Steel Pipe Ending Fittings

Pipe Fittings
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Related Products

  • Brake hose assembly & Brake line kits
  • Rubber brake hose & PTFE S.S braided brake line
  • Air brake hose assembly
  • Bundy steel tube and assembly
  • Female & male fitting, banjo fitting, bolts & nuts
  • Hose connectors and joints
Related Accessories
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Packaging & Shipping

Tubes are packed in rolls into pallets or cartons to guarantee safe delivery. Water-proof packing uses plastic film for inner layers and woven bags for outer protection.

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Frequently Asked Questions

Q1: What is the difference between single wall and double wall tubes? A: Single wall tubes are typically used for refrigeration, while double wall brazed steel tubes are specifically designed for high-pressure automobile brake systems.
Q2: What standards do your brake tubes comply with? A: Our products meet international standards including SAE J527, ASTM A254, TSE 5130, and DIN 74234.
Q3: How long can the PVF coating last in salt spray tests? A: PVF coated tubes can withstand more than 1000 hours of salt spray testing without showing red rust, making them ideal for high-class automotive applications.
Q4: Are the tubes provided in coils or straight lengths? A: We can provide the tubes in coils or cut-to-length according to specific customer requirements.
Q5: What is the primary application for these steel tubes? A: They are widely used in power steering systems, brake systems, clutch systems, and fuel systems for various vehicle models.
Q6: What surface treatments are available for corrosion resistance? A: We offer several options including Zinc-plating (White, Yellow, Olive-drab), Copper coating, PVF coating, and PA12 coating.

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