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Beveled End Hollow Metal Pipe High Precision EN10305-2 For Petroleum Cracking

Place of Origin Jiangsu, China
Brand Name Hongbao
Certification TS16949,DNV,PED,ISO,TUV,LR
Model Number HBHST-1
Minimum Order Quantity 1 ton
Price Negotiable
Packaging Details Original packaging according to the customers Export standard package in bundled or as required.
Delivery Time within 50 days
Supply Ability 30000MT per year
Product Details
Brand Hongbao Certificate TS16949,DNV,PED,ISO,TUV,LR
Material ST37.4,ST52.4,E235,E355,26MnB5,34MnB5 OD 6-120mm
Thickness 0.5-15mm Processing Cold Drawn, Cold Rolled
High Light

hollow steel bar


hollow steel pipe

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Product Description

E155,E195,E235,E275,E355 EN10305-2 Hollow Steel Tube Welded Cold drawn Precision Steel Tubes



End Shape

Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per customer's




Oiled, Galvanized, Phosphate etc
Technique Cold drawn & cold rolled
Application 1. Automotive and mechanical pipes
2. Petroleum cracking pipes
3. High Pressure Boiler Pipe
4. Low and middle pressure fluid transportation pipeline
5. Chemical fertilizer equipment pipes
6. Heat exchanger pipes



1. BK (+C) No heat treatment after last cold forming process.
2. BKW (+LC) After last heat treatment there is a light finishing pass (cold drawing)
3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed.
4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled atmosphere.
5. NBK (+N)

After the final cold forming process the tubes are annealed above the upper

transformation point in a controlled atmosphere.

Package 1. Bundle Packing.
2. Plain end or vanished as per customer's request.
3. Wrapped in waterproof paper.
4. Sackcloth with several steel strips.
5. Pack in heavy tri-wall boxes.































+C No heat treatment after the final cold drawig process
+LC After the final heat treatment there is a suitable drawing pass
+SR After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere
+A After the final cold drawing process the tubes are annealed in a controlled atmosphere
+N After the final cold drawing operation the tubes are normalized in a controlled atmosphere



100% PMI,Spectro Chemical Aanlysis Test for Raw Material

100% Dimension & Visual Examination

100% Hydrostatic Test or 100% NON-DESTRUCTIVE Test (ET or UT)

Mechanical Properties Test Include Tension Test,Flaring Test (For Seamless tube/pipe)/ Flange Test (For Welded Pipe & Tube), Hardness Test ,Reversed Flattening Test

Straightness Test