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DIN2391 ST37.4 High Precision Cold Drawn Seamless Carbon Steel Tube for Hydraulic Cylinders

Name: DIN2391 ST37.4 High Precision Cold Drawn Seamless Carbon Steel Tube for Hydraulic Cylinders
Brand: Jiangsu Hongbao Group Co., Ltd.
SKU: HBPST-1
Price: 22.00 USD
Availability: InStock

Product Details

Place of Origin: Jiangsu, China

Brand Name: Hongbao

Certification: TS16949, DNV, PED, ISO

Model Number: HBPST-1

Payment & Shipping Terms

Minimum Order Quantity: 1 ton

Price: Negotiable

Packaging Details: seaworthy plywooden case packing.

Delivery Time: Within 50 days if production

Payment Terms: L/C,T/T

Supply Ability: 30000MT per year

Get Best Price

Product Details

Product Description

Highlight: 
                                                                                                                                                                                                                                                                                                                precision seamless tubing, erw precision tubes
                              

Material::	ST37.4, ST52.4, E235, E355, 26MnB5, 34MnB5	Brand::	Hongbao
Certificate::	TS16949, DNV, PED, ISO	Origin::	Jiangsu,China
OD::	6-120mm	Thickness::	0.5-15mm
Type::	Welded Or Seamless	Processing::	Cold Drawn, Cold Rolled

Material::	ST37.4, ST52.4, E235, E355, 26MnB5, 34MnB5
Brand::	Hongbao
Certificate::	TS16949, DNV, PED, ISO
Origin::	Jiangsu,China
OD::	6-120mm
Thickness::	0.5-15mm
Type::	Welded Or Seamless
Processing::	Cold Drawn, Cold Rolled

DIN2391 ST37.4 High Precision Cold Drawn Seamless Carbon Steel Tube for Hydraulic Cylinders

DIN2391 ST37.4 OD6 High Precision Seamless Carbon Steel Tube Precision Steel Tube For Brake Pipes

Product Overview

DIN2391 E235 high precision seamless carbon steel tube for brake pipes is manufactured to precise specifications, ensuring consistent wall thickness, smooth surface, and accurate dimensions. Ideal for automotive brake systems, these tubes provide reliable and efficient fluid transfer, enhancing vehicle safety and performance.

Dimensional Tolerances

OD	GB/T3639(GB8713)	DIN2391(EN10305)	Our Tolerance	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

Manufacturing Processes

Process	Diameter	Length	Precision	Inner Hole Roughness
Cold Rolled	30-100mm	≤12 m	H8-H10	0.4-1.6
Cold Draw	30-250mm	≤12 m	H8-H10	0.8-1.6
Honing	40-500mm	≤12 m	H8-H9	0.4-0.8
Rolling	40-400mm	≤7 m	H8	0.4

Inner Diameter Tolerances

Inner Diameter	H8	H9	H10	5-30mm
30mm	±0.033	±0.052	±0.084	±0.080
30-50mm	±0.039	±0.062	±0.100
50-80mm	±0.046	±0.074	±0.120
80-120mm	±0.054	±0.087	±0.140
120-180mm	±0.063	±0.100	±0.160
180-250mm	±0.072	±0.115	±0.185
250-315mm	±0.081	±0.130	±0.210
315-400mm	±0.089	±0.140	±0.230

Quality Testing

100% PMI, Spectro Chemical Analysis Test for Raw Material
100% Dimension & Visual Examination
Mechanical Properties Test including Tension Test, Flaring Test (For Seamless tube/pipe)/ Flange Test (For Welded Pipe & Tube), Hardness Test, Reversed Flattening Test
100% Hydrostatic Test or 100% NON-DESTRUCTIVE Test (ET or UT)

Technical Specifications

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

Length: As customer's requirement

Standard: DIN2391, EN10305, GB/T3639, GB8713

Application: Hydraulic cylinder, automobile

Heat Treatment: According to customer's requirements

Delivery Time: 30 days or according to customer requirements

Packaging Options

Bundle packing
Marking as per customer's requests
Paint on the pipe as per customer request
Pipe caps as customer required

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