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Carbon Steel Seamless Tubing for Mechanical & Structural Equipment.

Hydraulic Steel Tubes - St37.4 Material

Norm DIN2391 EN10305, High quality ST 37.4 NBK Hydraulic Steel Tubes St35, St37.4, St52, Seamless Precision Steel Tubing, bright heat treatment without oxidation (NBK status), non-destructive testing, cleaning, phosphating, anti-rust oil dipping, the application for machine tools industry, construction machinery, ship building industry hydraulic system, automotive steel tube, and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.

Seamless Precision Steel Tubes - DIN 2391

  • DIN highly accurate, cold drawn and bright seamless precision steel tube is used as the tube to be phosphated. The phosphated is realized with the imported chemical fluid to form a black film. The antirust oil is absorbed by means of the micropore on the film to prevent from the rust. The caps are covered at two ends of tube to prevent from the dust.
  • High accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall.
  • The steel tube is able to stand high pressure. No deformation after cold bending, no crack after flaring and flattening. The complicated geometrical forming and machining can be realized.
  • The color of NBK tube is Bright Black. Color is homogeneously distributed on the tube surface. The tube has good property of antirust.
Production Standard ¡GDIN 2391/DIN 1629/EN 10305/ASTM A179/JIS G3445 Finished Condition ¡G NBK(+N) / GBK(+A) / BK(+C) / BKW(+LC) / BKS(+SR) Material¡G ST35(E235) / ST45(E255) / ST52(E355) / ST37.4
Size List : all dimensions are by metric.
12x1.5 16x2.5 22x1.5 28x2.0 34x2.0 38x3.0 48x3.5
4x1.0 12x2.0 16x3.0 22x2.0 28x2.5 34x2.5 38x3.5 48x5.0
5x1.0 12x2.5 18x1.0 22x2.5 28x3.0 34x3.0 38x4.0 50x5.0
6x1.0 14x1.0 18x1.5 22x3.0 28x3.5 34x3.5 38x5.0 50x6.0
6x1.5 14x1.5 18x2.0 22x3.5 28x4.0 34x4.0 38x6.0 60x3.0
6x2.0 14x2.0 18x2.5 22x4.0 30x1.5 34x4.5 40x4.0 60x5.0
8x1.0 14x2.5 18x3.0 22x5.0 30x2.0 34x5.0 42x2.0 60x6.0
8x1.5 14x3.0 19x2.0 24x2.0 30x2.5 35x1.5 42x3.0 60x7.0
8x2.0 15x1.0 20x1.0 25x2.0 30x3.0 35x2.0 42x3.5 60x8.0
8x2.5 15x1.5 20x1.5 25x2.5 30x3.5 35x2.5 42x4.0 65x5.0
9x1.5 15x2.0 20x2.0 25x3.0 30x4.0 35x3.0 42x4.5 65x8.0
10x1.0 15x2.5 20x2.5 25x4.0 30x5.0 35x3.5 42x5.0 70x4.0
10x1.5 15x3.0 20x3.0 27x3.0 32x2.0 35x4.0 42x6.0 70x5.0
10x2.0 16x1.0 20x3.5 27x3.5 32x2.5 35x4.5 45x3.0 70x8.0
10x3.5 16x1.5 20x4.0 27x4.0 32x3.0 35x5.0 45x6.0 90x5.0
12x1.0 16x2.0 22x1.0 28x1.5 32x4.0 38x2.5 48x3.0 114x4.0
¡¹Other Specification and requirement can be customers make.

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February 29, 2024 Honest Prosper Industrial Co., Ltd., All Rights Reserved. | Carbon Seamless Steel Tubes Manufacturer