Jiangsu, China
Business Type:
Manufacturer/Factory, Trading Company
Management System Certification:
ISO 9001, ISO 9000, ISO 14001
Sample Available
Spanish / Portuguese Speaker

Nbk Seamless Tube, St37.4 Seamless Tube, St52.4 Seamless Tube manufacturer / supplier in China, offering High Precision Seamless Tube Nbk Finished, Hot Selling F317L (UNS S31703, 19Cr, 13Ni, 3.5Mo) Forgings, The Best Price for Duplex Stainless Steel Seamless Heat Exchanger Annealed Tubes and so on.

Gold Member Since 2014
Audited Supplier

High Precision Seamless Tube Nbk Finished

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Min. Order / Reference FOB Price
1 Piece US $1/ Piece
Production Capacity: 50000PCS
Transport Package: Wooden Case
Payment Terms: L/C, T/T, D/P
Standard: ASTM, API, DIN
Diameter: 4 to 60 Mm
Medium: Carbon Steel and Alloy Steel
Cross-Section Shape: Round
Connection Type: Seamless
Nbk Precision Seamless: Oiling Surface and Plastic Capping

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Basic Info

Model NO.: DIN2391-94/C, 10#, 20#, ST37.4, ST52.4
Trademark: Tongji Engineering
Specification: acc to the ASTM specifications or others
Origin: China
HS Code: 7305190000

Product Description

DIN Cold Drawing and BA Seamless Tube With High Precision

Synopsis of process Routing
Quality carbon steel - Cold draw- Heat treatment without oxidization (NBK Status)- Nondestructive Testing.
In the wall honing flushing under the high perssure- Antirust oiling out surface- Plastic capping on both ends.

Main Features
High precision, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness of inside wall.
The steel tube is able to withstand high pressure.
No deformation after cold bending, No crack after flaring and flattening.
The complicated geometrical forming and machining can be realized.
Color of tube surface: gray with white.

Main Application
To be used in hydraulic system,Automobile and in the occasion where the high precision, Brightness, cleanness and mechanical properties of tube are required.

Maitan NBK high precision seamless steel tubes size range: OD4.0 - 60.0mm, WT 0.5 - 8.0mm.

We always seek and improve our service as per requirement of our valued customers.
Type of product Grade(s)  Technical requirements 
* according to
DIN Cold Drawing and BA Seamless Tube
with high precision
ST37.4, ST45,ST52.4
ST 35.8, ST45.8 etc
 GB /T8713
EN10305-1, EN10305-4
DIN17175 or Closer
 High- Pressure Seamless Steel Tubes
  For compression ignition engine
 ST35, ST37.4, ST52.4
OD 6~10x WT 1~4 mm
ISO 8535
Black Phosphated Seamless Steel Tube  10#,20#
ST37.4, ST45,ST52.4
ST 35.8, ST45.8 etc
    GB /T8713
EN10305-1, EN10305-4
DIN17175 or Closer
 Precision Galvanized Steel Tube   10#,20#
ST37.4, ST45,ST52.4
   GB /T8713
EN10305-1, EN10305-4

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