Sheng Ding Yuan Pipe-Making Co., Ltd.

China Manufacturer with main products: Seamless Steel Tube, High Pressure Fuel Pipe, DIN Black Phosphated Hydraulic Tube in High Precision, Galvanized Steel Tube, Square Tube, High...

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DIN Black Phosphating Hydarulic Tube in High Precision

Supply Ability:	500 Metric Ton per Month
Shipping:	within 50 days
Payment Terms:	L/C, T/T

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Product Details

Export Markets:	North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin:	Jiangsu in China
Packaging Details:	painted with antirust oil, covered with caps at two ends, packed with plastic film and linen or wood

Quick Details

Brand Name: Sheng Ding Yuan
Model Number: Phosphate Hydraulic Tube-3
color: black

Specifications

Detailed Product Description

Standard:	DIN1630	Material:	ST37.4,ST44.4,ST52.4
Thickness:	0.5 To 7mm	Outer Diameter:	4 To 60mm
Technique:	Precision Cold Drawn Seamless Carbon Steel Tube	Surface Treatment:	Black Phosphated

Cold Drawn Carbon Steel Tubing , Automotive Precision Seamless Steel Pipe

Quick Detail:

DIN2391(EN10305/4)seamless hydraulic line steel tubing ST37.4(E235)

Raw material:Bao Steel,Huai Steel,XingCheng Steel with good quality.

Surface clean,without oxidization.

Expanding,flaring,deformation with no crack.

Description:

Synopsis of Process Routing: Cold drawn and bright NBK seamless steel tube is used as the tube to be phosphated. The phosphated is realized with the imported chemical fluid to form a black film. The antirust oil is absorbed by means of the micro pore on the film to prevent from the rust. The caps are covered at two ends of tube to prevent from the dust.

Internal Surface quality Control:We adopt automatic inner surface cleaning machine, rotating brush cleaning and high pressure oil flushing to clean the inner and outer surface.The new steel tube production craftsmanship can effectively remove all particulate attached to the inner and outer surface of tubes and thus achieving the utmost surface cleaness and polishness.

Main Features: color of steel tube: bright black. Color is homogeneously distributed on the tube surface. The tube has good property of antirust.

Applications:

Used in hydraulic system,including automotive Hydraulic power steering system, the clutch system, braking system, engine high pressure oil pipe, excavator hydraulic oil pipe,nested card connector (pipe joints) with matching,shippment industry.

Specifications:

Size:OD4mm-60mm,TH0.5mm-7mm

Standard:DIN1630

Material: ST37.4,ST44.4,ST52.4

Delivery State:NBK+Black phosphate.

Chemical composition(cast analysis)^a
Steel grade		% by mass
Steel name	Steel number	C	Si	Mn	P	S
Steel name	Steel number	max.	max.		max.	max.
ST37.4	1.0255	0.17	0.35	≥0.35	0.025	0.025
ST44.4	1.0257	0.21	0.35	≥0.40	0.025	0.025
ST52.4	1.0581	0.22	0.35	≤1.60	0.025	0.025

Mechanical properties at room temperature
Steel grade		Minimum values for the delivery condition
Steel name	Steel number
Steel name	Steel number	Rm(Mpa)	Re(Mpa)	A(%)
ST37.4	1.0255	235	350-480	25
ST44.4	1.0257	275	420-550	21
ST52.4	1.0581	355	500-650	21

Competitive Advantage:

Certificate awarded:TS16949 since 2009.

Main Customer:Contitech,Benteler.

We have to cooperate with Volkswagen.

We also have been reviewed by BMW.

Service Process

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Service Guarantee

Free Service Charge

ECVV doesn't charge any service fee to Buyers for buying this product.
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ECVV is responsible for supply, and provides product quality inspection, fund supervision and supply chain services.
Product Quality Commitment

ECVV China Sourcing Agent will assess the reputation and supply ability of the factory and conduct field trips to select the high-quality Chinese factories for buyers.
Deposit Service Commitments

In order to improve the quality of service, ECVV will charge for a 100CNY deposit for the agent purchasing order, and the deposit will be part of subsequent purchasing costs.

After paying a deposit, if the purchasing order is not completed because of unsatisfied ECVV services, ECVV will refund your deposit.