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Construction Field Seamless Steel Tube 120mm Outer Diameter 235Mpa Yield Strength

Place of Origin China
Brand Name Hongbao
Certification TS16949, ISO9001, OHSAS18001 etc.
Model Number HBPST-1
Minimum Order Quantity 1 ton
Price Negotiable
Packaging Details Seaworthy Wooden box, customized Packing
Delivery Time 30 Days
Supply Ability 60000 MT per Year
Product Details
Shape Round Application Automotive Part, Hydraulic System, High-precsion Machining. Etc.
Delivery Condition +C,+LC,+SR,+N,+A Standard DIN2391, DIN2445
Certificate TS16949,DNV,PED,ISO Type Welded Or Seamless
High Light

precision seamless pipe


seamless round tubes

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Product Description

Round Steel Pipe DIN2391 DIN2445 St37.4 High Precision Seamless Steel Tubes


Chemical Component

C: ≤0.17%;

Si: ≤0.35%;

Mn: ≤1.2%;

S: ≤0.025%;

P: ≤0.025%;


Mechanical properties:

Tensile strength: 340-480mpa;

Yield strength: ≥235Mpa;

Elongation: >25%;


Main Date

Standard DIN2391,DIN2445
Material St37.4
Outer Diameter Range: 4-120mm
Wall Thickness Range: 0.5-15mm

Delivery Condition

NBK(+N): After the final cold drawing operation the tubes are normalized in a controlled atmosphere.

GBK(+A): After the final cold drawing process the tubes are annealed in a controlled atmosphere.

BK(+C): No heat treatment after the final cold drawig process.

BKW(+LC): After the final heat treatment there is a suitable drawing pass.

BKS(+SR): After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere.


Surface treatment:



Shot Blasting;

As customer's requirements.



We have our own lab to control the material and the product meet the international standard.

Construction Field Seamless Steel Tube 120mm Outer Diameter 235Mpa Yield Strength 0