Cold Drawn Inside Honing Seamless Steel Pipe for Hydraulic Cylinder Pipe by Grade E355, St52

• After-sales Service: One Year
• Warranty: One Year
• Type: Seamless
• Technique: Honing, Roller Burnishing
• Material: Alloy, Carbon Steel
• Surface Treatment: Bk, Nbk, Bks, etc
• Usage: Hydraulic/Automobile Pipe, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Special Purpose
• Section Shape: Round
• Size: 30mm~416mm
• Length: Fixed Length, by Random
• End Processing: Plain Ends
• Surface: Bare Pipe, Anti-Rust Painting
• Steel Material: SAE1020, SAE1045, SAE4130, St52, St52.3,E355
• Transport Package: Standard Seaworthy Packing
• Specification: ASTM, DIN, GB/T, EN, JIS
• Trademark: Iron&steel
• Origin: China
• HS Code: 73045910
• Production Capacity: 2000tons Per Month

Product Description

The honing/ roller burnished seamless steel hydraulic tubing, hydraulic steel pipe and hydraulic cylinder tube is cold draw both inside and out, then is given tempering treatment with a tensile strength of up to 520N / mm2 or more. Improved Inside honing or roller burnishing equipment guarantee the H7, H8 diameter tolerance.It helps to extend the life of the cylinder, and reduces the wear of the seal. The honing/skived and roller burnished seamless steel hydraulic tubing, hydraulic steel pipe and hydraulic cylinder tube steel grade include EN 1.0580, E355, STKM13C, STKM13A and DIN ST52.
Our factory has advance production lines for Inside honing, roller burnishing production.

High quality inside surface processing

Specifications of major steel material:

Processing form	I.D.mm	Length	Straightness	I.D.tolerance	I.D.Roughness(RA)
Cold-rolled	30-100	≤12M	0.3-1.0/1000	H8-H10	0.4-1.6um
Cold-drawn	30-250	≤12M		H8-H10	0.8-1.6um
Hone	40-500	≤12M		H8-H9	0.4-0.8um
SRB	50-250	≤9M		H8	0.1-0.4um

Tolerance of ID and WT

Size of inside Diameter(mm)	ID Tolerance			Tolerance of wall thickness
30	+0.0330	+0.0520	+0.0840	<120mm(OD)              ±5% >120mm up to 210mm±7.5% >210mm                     ±10%
>30-50	+0.0390	+0.0620	+0.1000
>50-80	+0.0460	+0.0740	+0.1200
>80-120	+0.0540	+0.0870	+0.1400
>120-180	+0.0630	+0.1000	+0.1600
>180-250	+0.0720	+0.1150	+0.1850
>250-315	+0.0810	+0.1300	+0.2100
>315-400	+0.0890	+0.1400	+0.2300

Main steel grade by different standard

SAE/AISI:	SAE1020, SAE1026, SAE1045, SAE4130, SAE4140
DIN:	ST52, ST52.3, ST52.4
EN:	E355, C45E, 25CrMo4, 42CrMo4, CK45, S45C, E410, E470
GB:	20#, 45#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn, 27SiMn,

Professional Seaworthy packing

Professional team guarantee the best service of shipment

Factory show