DIN Galvanized steel tubes | DIN 2391 Seamless Hydraulic Tube

DIN Galvanized steel tubes 

O.D: 4mm-60mm 

W.T: 0.5mm-8mm 



High Precision Galvanized Steel Tube

Specifications: Size:OD4mm-60mm,TH0.5mm-7mm


Material:ST37, ST37.4,ST44.4,ST45,ST52,ST52.4


Delivery State:NBK/GBK+Zinc coated tube.

DIN2391/C zinc coated steel tubing ST37.4 

Raw material:Bao Steel,Huai Steel,XingCheng Steel with good quality.


Synopsis of Process Routing: DIN highly accurate cold drawn bright seamless steel tube is used as the tube to be galvanized, the outer wall is electroplated, caps are covered at two ends of tube to prevent from the dust.


Main Features: Different color of zinc such as white, yellow, army-green, black is evenly distributed in the surface of the tube, good brightness and antirust and antisepsis could improve after zinc coated.


Automotive,military,railway industry,with high requirement of the tube’s  brightness, cleanness,antirust,and antisepsis.


Galvanized tube category and related standard

Galvanized tube category Related Standard Zinc coating thickness Salt spray test 

Gr3+ Galvanized tube with blue and white zinc ASTM B633-07

(Type III,SC 1/2/3/4) 5-25um 24--72 hours without white rust;48--168 hours without red rust

Gr3+ Galvanized tube with color zinc ASTM B633-07

(Type II,SC 1/2/3/4) 5-25um 48--96 hours without white rust;48--240 hours without red rust

Gr6+ Galvanized tube with color zinc ASTM B633-98

(Type II,SC 1/2/3/4) 5-25um 24--96 hours without white rust;48--124 hours without red rust


Competitive Advantage:

Internal surface with high cleaness and roughness.

We passed TS16949 certificate since 2009.


Main Customer:Contitech,Benteler.

We have to cooperate with Volkswagen.

We also have been reviewed by BMW.


Our company has one of the most stringent quality control systems, from our feed testing,product inspection to the final inspection process.Strict quality process control and management ensure product quality and traceability.


DIN Galvanized Steel Tube with High Precision 

DIN 2391 E235 E355 Galvanized Steel Tube for Automobile , Cold Drawing Steel Tubing

Main Features:white galvanized, color galvanized (yellow galvanized). The outer wall of tube has good property for antirust and anticorrosion. Note: Length for galvanized steel tube should be within 6 Meters.

Main Application:used in hydraulic system, in the occasion where the requirement for antirust and anticorrosion of outer wall is relatively high. 

DIN Galvanized Steel Pipe


DIN Galvanized Steel Pipe, Galvanized Steel Tube 

Standard: DIN 

2440/2448, EN10255, 

Material: SPHC, S195T 

Sizes: OD: 1/4"-12" 

Thinkness: Sch5-Sch80 (1.0mm-12mm) 

Length: 2m-12m 

Characteristics: High quality of surface smoothness, high precision and easily bending, and higher hardness, thread both ends and socket. 

Surface treatment: Hot-galvanized 

Application Scope: Our products are widely applied for bike, tent, trolley, and furniture, etc. Various choices for different specification, would fully meet client's satisfaction