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Model No.: GB/T 19793
Brand: TORICH
Standard: Gb, Astm
Material: Stpa22-Stpa26, A53-A369, Q195-Q345, 10cr9mo1vnb
Section Shape: Round, Rectangular
Certification: Bsi, Ce
Surface Treatment: Copper Coated
Special Tube: Api Pipe
Tolerance: ±10%
Category: Spiral Welded Pipe, Square tubes, Welded Steel Pipe
Processing Service: Welding, Bending, Decoiling
Product Name: GB/T 19793 Small Diameter Thick-wall Welded Pipe/tube
Packaging: In bundles In wooden boxes
Productivity: 60000 Tons per Year
Transportation: Ocean,Land,Air
Place of Origin: China
Supply Ability: 60000 Tons per Year
Certificate: ISO 9001 ISO 14001 TS 16949 EN 10204.3.1 LR KR
HS Code: 7306900090
Port: Ningbo,Shanghai
Payment Type: L/C,T/T,D/P,Paypal
Incoterm: FOB,CFR,CIF,FCA,CPT
Cold Drawn Thick-wall Welded Steel Tube for Auto
Application:Replace seamless tubes in subsequent cold drawing,Motorcycle Electric Vehicle Shock Absorber
size:length--2~12m WT--2~4.5mm OD--16~50mm
material:Q235 Q195 SPCC SPHC
Production process: ordinary high-frequency welded pipe
Advantages: small diameter and thick wall
Surface Quality:The internal and external surfaces of the steel tube are not allowed to have cracks, scabs, folds, delaminations, laps, and burns. Allows for scribes, scratches, misalignment of welds, burns, oxide scales, and external burr removal traces that are not more than a negative wall thickness deviation
Inspection items:
chemical composition
Tensile test
Ultrasonic examination
Eddy current flaw detection
Bending test
Flattening
Permissible Tolerance of Outer Diameter and Wall Thickness (mm)
Hot-rolled (extruded and expanded) tube
Type of steel Tube Dimension of steel tube Permissible tolerance Average class High class Outer diameter D All ±1%
(min.+/-0.50) - Wall thickness All +15%/-12.5%
(min.+4.5/-4.0) - Cold-drawn (cold-rolled) tube Outer diameter D 6~10 ±0.2 ±0.15 >10~30 ±0.40 ±0.20 >30~50 ±0.45 ±0.30 >50 ±1% ±0.8% Wall thickness <1 ±0.15 ±0.12 >1~3 +15%
-10% +12.5%
-10% >3 +12.5%
-10% ±10% Note: For hot-expanded tubes with outer diameter>35mm,the permissible tolerance of wall thickness is±18%.
Longitudinal Mechanical Properties of Steel Tubes
NO. Steel Grade Tensile Strength(Mpa) Yield point(Mpa)
Elongation after breaking(%) s<16 s>16 Not less than 1 10 335~475 205 195 24 2 20 410~550 245 235 20 3 Q295 430~610 295 285 22 4 Q345 490~665 325 315 21
Product Categories : Welded Steel Pipe
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.