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GB/T 19793 small diameter Thick-wall welded pipe/tube

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Payment Type:

L/C,T/T,D/P,Paypal,Money Gram,Western Union

Incoterm:

FOB,CFR,CIF,FCA,CPT

Min. Order:

0.5 Ton

Transportation:

Ocean,Land,Air

Port:

Ningbo,Shanghai

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Product Description

Product Attributes
Supply Ability & Additional Information
Packaging & Delivery

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Overview

Product Attributes

Model No.: GB/T 19793

Brand: TORICH

Product Name: GB/T 19793 Small Diameter Thick-wall Welded Pipe/tube

Supply Ability & Additional Information

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,Money Gram,Western Union

Incoterm: FOB,CFR,CIF,FCA,CPT

Packaging & Delivery

Selling Units:: Ton

Package Type:: In bundles In wooden boxes

GB/T 19793 small diameter Thick-wall welded pipe/tube

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 test

Permissible Tolerance of Outer Diameter and Wall Thickness (mm)

Type of steel Tube	Dimension of steel tube		Permissible tolerance

			Average class	High class

Hot-rolled (extruded and expanded) tube	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	Elongation after breaking(%)
			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