DIN2391 St52.3 H7 H8 H9 Seamless High Precision Honed Pipe

• After-sales Service: Change/Return
• Warranty: 1 Year
• Type: Seamless
• Technique: Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Black
• Model NO.: DN50
• Usage: Hydraulic/Automobile Pipe, Machinery Industry
• Section Shape: Round
• Quality Test: Chemical, Mechanical and Dimension
• Mill′s Test Certificate: En10204 3.1b
• Transport Package: Standard Seaworthy
• Specification: OD30-420mm
• Trademark: KM/OEM
• Origin: China

Product Description

DIN2391 St52.3 H7 H8 H9 Seamless High Precision Honed Pipe
 

Seamless Steel Honed Tube is made of JIS STKM13C/ DIN ST52/ ASTM A106/ SAE1020 and welded pipe: DIN ST52.3 are also offered. Seamless Steel Hydraulic Cylinder Honed Tube withstands higher pressure than welded tube without splits. But, roundness of welded honed barrels is superior to seamless pipe. After honing, carbon steel cylinder honed tube of mechanical structure use has precision diameter, smooth surface, and excellent performance of oil storage. This kind of Hydraulic Cylinder Tube and Pneumatic Cylinder Tube work smoothly without pauses and has longer working life in cylinders. Applies to hydraulic cylinders tube, pneumatic cylinders tube, forklift, crane, excavator, punching machine, and other kinds of labor-saving automatic mechanical engineering.

 

 

OD : Ø 30~420mm

ID : Ø 18~350mm
Length : 3000~8000mm
Special Length : 13M
Surface Roughness :Ra0.4-Ra0.8
ID Accuracy : H7, H8, H9

Standard and Optional Testing:

Visual and dimensional test 100%.

Eddy current test 100% acc. to EN 10246-3.

Ultrasonic test 100% acc. to EN 10246-7.

Chemical composition.

Grade	C	Si	Mn	P	S
St 52 (DIN1.0580)	0.22 max	0.55 max	1.60 max	0.025 max	0.025 max

Mechanical properties 

Grades	Delivery Conditions	Tensile Strength Rm (Mpa)	Yield Strength R2 (Mpa)	Elongation in the longitudinal direction Al (%)
St 52	+C (BK)	640 min	/	4 min
St 52	+LC (BKW)	580 min	/	7 min
St 52	+SR (BKS)	580 min	420 min	10 min
St 52	+A (GBK)	490 min	/	22 min
St 52	+N (NBK)	490-630	355 min	22 min

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.

Mill Test Certificate:

The product is supplied with 3.1.B inspection certificate,according to the standards EN 10204 and ISO 10474.

From 1989 to now, Kingmetal Steel focus on manufacturing and distributing pipeline products including piping, fitting, flange, valve and fastener in stainless, carbon, alloy and duplex steel.
Kingmetal has a factory to manufacture seamless stainless steel pipe from DN6 to DN600 and distribute seamless steel pipe and fitting from top brand manufacturers such as Baosteel, Hengsteel, Tiansteel and Pansteel etc.
All of products are strictly compliance with standard, 100% inspection passed including visual, dimension and PMI test before shipment.
Both our sales and logistic teams are over 10 years of experiences and training frequently.
After- sales service with high efficiency, if any products are short quantity/weight or damaged caused by manufacturing, design or transportation can be compensated.
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Special material customization
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