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NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD

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China DIN2391 Precision Seamless Steel Tube
China DIN2391 Precision Seamless Steel Tube

  1. China DIN2391 Precision Seamless Steel Tube
  2. China DIN2391 Precision Seamless Steel Tube
  3. China DIN2391 Precision Seamless Steel Tube

DIN2391 Precision Seamless Steel Tube

  1. MOQ: 1 tons
  2. Price:
  3. Get Latest Price
Packaging Details Bundles Packages
Delivery Time 30 days
Payment Terms T/T
Supply Ability 3000 tons per month
Ends Plain
Package Standard Export Package
Standard ASTM, DIN, JIS, GB, EN
Surface Treatment Bright And Clean
Material Steel
Tolerance ±0.05mm
Length 5.8M, 11.8M, Random Length
Application Precision Purpose
Brand Name Pipeway
Model Number DIN2391 Precision Seamless Steel Tube
Place of Origin China
Certification ISO 9001 , TS16949

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  1. Product Details
  2. Company Details

Product Specification

Packaging Details Bundles Packages Delivery Time 30 days
Payment Terms T/T Supply Ability 3000 tons per month
Ends Plain Package Standard Export Package
Standard ASTM, DIN, JIS, GB, EN Surface Treatment Bright And Clean
Material Steel Tolerance ±0.05mm
Length 5.8M, 11.8M, Random Length Application Precision Purpose
Brand Name Pipeway Model Number DIN2391 Precision Seamless Steel Tube
Place of Origin China Certification ISO 9001 , TS16949
High Light Precision Seamless Steel TubeDIN2391 Seamless Steel TubeDIN2391 Precision Seamless Steel Tube

 

DIN 2391 Precision Seamless Steel Tube 

St35, ST45, ST52, NBK / GBK / CW / SR

1. Basic Specifications

  • Standard: DIN 2391 (German Industrial Standard for cold-drawn precision seamless steel tubes)‌1.
  • Material: Carbon steel (e.g., ST52 grade)‌8, suitable for mechanical and hydraulic applications‌6.
  • Surface Treatment: Options include phosphating (anti-corrosion treatment)‌4 and honed/bright surfaces (improved smoothness)‌

2. Manufacturing Process

  • Cold Drawing: Precision cold-drawn process ensures dimensional accuracy and mechanical strength‌
  • Honing: Post-processing to achieve ultra-smooth internal surfaces for hydraulic systems‌

3. Dimensions & Tolerances

  • Outer Diameter (OD): 6-168mm
  • Wall Thickness: Tolerance within ±8% of specified thickness 
  • Length: 5.8M / 6M / 11.8M , random length 5-5.8M

4. Mechanical Properties

  • High-pressure resistance and excellent load-bearing capacity‌
  • Optimized for applications requiring tight tolerances and structural integrity‌

5. Key Features

  • High Precision: Tight dimensional tolerances for seamless integration in complex assemblies‌
  • Surface Quality: Bright or honed surfaces reduce friction and enhance cleanliness in hydraulic/pneumatic systems‌
  • Durability: Enhanced strength from cold-working processes‌

6. Applications

  • Hydraulic/Pneumatic Systems: Cylinder tubing and pipelines‌
  • Automotive: Precision components requiring high dimensional stability‌
  • Heavy Machinery: Structural parts in mechanical engineering‌
  • Mechanical properties at room temperature
    Steel Grade Minimum values for the delivery condition
    Steel Name Steel Number BK BKW BKS GBK NBK
    Rm A % Rm A % Rm ReH A % Rm A % Rm ReH A %
    Mpa Mpa Mpa Mpa Mpa Mpa Mpa
    St 35 1.0308 480 6 420 10 420 315 14 315 25 340 to 470 235 25
  • Standard Grade Chemical Components (%)
    Symbol Material No. C Si Mn P S
    DIN2391 St 35 1.0308 ≤0.17 ≤0.35 ≥0.40 ≤0.025 ≤0.025

Keywords: DIN2391, Precision seamless steel tube, steel tube, seamless steel tube

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    1988

  • Total Annual:

    100000000-15000000

  • Employee Number:

    150~200

  • Ecer Certification:

    Verified Supplier

Zhejiang New Era Steel Tube Technology Co., Ltd is one of the best seamless steel tube products manufacturer and exporter in china. Our main products include cold drawn and cold rolled seamless steel tubes .We can manufacture non-standard and special application tubes, also according to the int... Zhejiang New Era Steel Tube Technology Co., Ltd is one of the best seamless steel tube products manufacturer and exporter in china. Our main products include cold drawn and cold rolled seamless steel tubes .We can manufacture non-standard and special application tubes, also according to the int...

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Get in touch with us

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  • NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD
  • No.101 Shijing East Road, Tudian Town, Tongxiang, China
  • https://www.precisionseamlesssteeltube.com/

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