• Jiangsu Hongbao Group Co., Ltd.
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  • Jiangsu Hongbao Group Co., Ltd.
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Phone Number : 86-512-58715276
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Auto Steering Device Hollow Metal Pole Seamless Cold Rolled 6mm Outside Diameter

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

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Product Details
Brand Hongbao Certificate TS16949,DNV,PED,ISO,TUV,LR
OD 6-120mm Thickness 0.5-15mm
Length 12000mm Max Type Welded Or Seamless
High Light

hollow steel bar


round hollow tube

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Product Description

Cold Rolled Seamless Steel Tube Hollow Steel Pipe Used For Steering Device In Autos



Tolerance in Dimension:

OD GB/T3639(GB8713) DIN2391(EN10305) Our Tolerence Best Quality
4-30mm ±0.10mm ±0.08mm ±0.05mm ±0.02mm
31-40mm ±0.15mm ±0.15mm ±0.05mm ±0.03mm
41-50mm ±0.20mm ±0.20mm ±0.05mm ±0.03mm
51-60mm ±0.25mm ±0.25mm ±0.08mm ±0.03mm
61-70mm ±0.30mm ±0.30mm ±0.10mm ±0.05mm
71-160mm ±0.30mm ±0.30mm ±0.10mm ±0.05mm
Tolerance in WT ±0.12mm ±0.10mm ±0.05mm ±0.03mm












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


Material grade:10#~45#, 16Mn, ST35~ST52

Length:as customer’s need

Standard: DIN2391, EN10305, GB/T3639, GB8713

Application: hydraulic cylinder, automobile

Heat Treatment: according to the customer’s need

Delivery time : 30days more or according to the customer’s acquirement



1. bundle packing

2. marking as per customer's requests

3. paint on the pipe as per customer request

4. pipe caps as customer reque


Auto Steering Device Hollow Metal Pole Seamless Cold Rolled 6mm Outside Diameter 0