En10305-1 En10305-4 DIN2391 St37.4 St52.4 Od6mm 8mm 18mm Cold Drawn Hydraulic HPL Black Phosphated Galvanized Cr6 Free Precision Carbon Steel Tube

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En10305-1 En10305-4 DIN2391 St37.4 St52.4 Od6mm 8mm 18mm Cold Drawn Hydraulic HPL Black Phosphated Galvanized Cr6 Free Precision Carbon Steel Tube

Customization:	Available
Type:	Seamless
Technique:	Cold Drawn

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Product Description

Basic Information

Model NO.

CDS-10

Material

Carbon and Alloy

Surface Treatment

Bright Annealing, Black Phosphating, Galvanizing

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Machinery Industry

Section Shape

Round

Standard

DIN2391, En 10305-1, JIS G3445, ASTM A519

Delivery Condition

Bk, Gbk, Bkw, Bks or Nbk

Steel Grade

St35, St45, St52, E235, E355, 1010, Stkm 11A

Tolerance

±0.08mm

Thickness

0.1-10mm

Specification

OD2-60mm

HS Code

7304319000

Product Overview

En10305-1 En10305-4 DIN2391 St37.4 St52.4 Od6mm 8mm 18mm Cold Drawn Hydraulic HPL Black Phosphated Galvanized Cr6 Free Precision Carbon Steel Tube

COLD DRAWN SEAMLESS STEEL TUBE
Standards	Sub-Standard	Steel Grades	Size Range
DIN	2391 / 1629	ST35/45/52	OD2 - 60mm × WT0.3 - 10mm
	1630 / 2445	ST37.4/44.4/52.4	OD2 - 60mm × WT0.3 - 10mm
	73000	ST 35/45/52	OD3 - 30mm × ID 1 - 12.5 mm
GB/T	8162 / 8163	10/20/16Mn/35/45	OD2 - 60mm × WT0.3 - 10mm
GB/T	3639 / 3093	10/20/16Mn/35/45	OD3 - 30mm × ID 1 - 12.5 mm
EN	10305-1 / 10305-4	E215/235/255/355	OD2 - 60mm × WT0.3 - 10mm
ASTM	A519 / A179 / A822	1010/1015/4130/4140	OD2 - 60mm × WT0.3 - 10mm
JIS	G3445 / G3455	STKM11A/12A/STS35	OD2 - 60mm × WT0.3 - 10mm

Delivery Conditions: BK (+C), BKW (+LC), BKS (+SR), GBK (+A), NBK (+N)

Major Inspection Items: Tensile strength, Yield strength, Elongation, Flattening, Flaring, Chemical analysis, Eddy Current Test 100%, Size and surface checking 100%

Certificates: According to EN 10204 3.1

Key Applications

1. Vehicle & Automotive

Powertrain system: Fuel-rails, Fuel-lines, SCR & EGR
Fluid handling: Tube assemblies, Air-conditioning
Drive & steering: Power-Steering Feed-Pipes
Hydraulic system: Pressure lines, Hydraulic tubing

2. Mechanical & Engineering

Mechanic Processing and parts
Heat Exchange & Gas Cylinders
Sub-sea, Marine, and Aerospace
Energy and Power Generation

Manufacture Process

Production Capability

We specialize in producing steel forgings for Marine, Power, Boiler, Oil, Petrochemical, and Hydraulic fields, as well as precision steel tubes for the automotive industry and hydraulic systems. Our facility covers 150,000 square meters. All products undergo double inspection by professional quality controllers to ensure all tested items meet customer requirements. Only fully inspected products are allowed for delivery, adhering to a "Quality Foremost" principle.

Packaging & Shipping

FAQ

Q: What international standards do your precision steel tubes comply with?

A: Our tubes meet various global standards including DIN2391, EN 10305-1, EN 10305-4, JIS G3445, and ASTM A519.

Q: What are the available surface treatments for the hydraulic tubes?

A: We offer multiple surface treatments such as Bright Annealing, Black Phosphating, and Galvanizing (including Cr6 Free options).

Q: What is the size range and tolerance for these tubes?

A: The outer diameter (OD) ranges from 2mm to 60mm, with wall thicknesses between 0.1mm and 10mm. We maintain a strict tolerance of ±0.08mm.

Q: What delivery conditions can be provided?

A: We support various conditions: BK (+C), BKW (+LC), BKS (+SR), GBK (+A), and NBK (+N).

Q: How do you ensure the quality of the steel tubes?

A: Quality is ensured through 100% size and surface checks, alongside testing for tensile strength, yield strength, elongation, and Eddy Current Tests.

Q: What are the primary industries that use these precision tubes?

A: They are widely used in the automotive industry (fuel lines, steering), hydraulic systems, mechanical engineering, and aerospace.

En10305-1 En10305-4 DIN2391 St37.4 St52.4 Od6mm 8mm 18mm Cold Drawn Hydraulic HPL Black Phosphated Galvanized Cr6 Free Precision Carbon Steel Tube

Product Description

1. Vehicle & Automotive

2. Mechanical & Engineering

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