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SRB honed cold finished hydraulic steel tubes ASTM 1010 materail

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SHANGHAI UNITE STEEL TRADING CO., LTD
City: Shanghai
Province/State: Shanghai
Country/Region: China
Tel: 86-21-35316960

SRB honed cold finished hydraulic steel tubes ASTM 1010 materail

Brand Name : UST
Model Number : OD: 30-450mm; WT: 2-40mm
Certification : ISO 9001
Place of Origin : China
MOQ : MOQ: 3-5 tons.
Price : USD 800- 1500/ton
Supply Ability : 1000 ton/month
Delivery Time : Within 5-35 days
Packaging Details : Plastic plugs in both ends, Hexagonal bundles of max 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips.
Process : Cold drawn, honing, skiving, scraping
Quality Standard : DIN 2391, EN10305 ect.
End protector : Plastic Pipe Cap
Material : Carbon steel
Length : Fixed length, random length, or customized.
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SRB honed cold finished hydraulic steel tubes ASTM 1010 materail


1.Descriptions of honed tube

En stanard SRB Honed Cold finished Hydraulic steel tube made in china is a kind of after cold rolling processing of a kind of high precison steel tube, full name cold rolled precision seamless steel tube. Precision seamless steel tube wall inside and outside the precision seamless steel pipe seamless steel pipe without oxidation layars, under high pressure without lea, high precision, high finish, cold bending deformation, flaring, flattening without cracks,etc, it is mainly used to produce pneumatic or hydraulic components products, such as a cylinder or cylinder, are made seamless tube. The chemical composition of precision seamless steel tube with carbon sulfur C,Si, Mn, S, P, Cr.


2.Application

Hydraulic cylinder tube st52 din2391 widely used in hydraulic system with precision steel tube, injection molding machine with precision steel tube, hydraulic press with precision steel tube, shipbuilding with steel tube, EVA foaming, hydraulic machinery, hydraulic cutting machine, shoe making machinery, hydraulic equipment, high pressure tubing, hydraulic tubing, car sets of joints.


3.Features

Hydraulic cylinder tube DIN 2391 inside and outside the wall without oxidation layer, under high pressure, no leakage, high precision, high finish, cold bending deformation, flaring, flattening without cracks, surface rust proffing

1. The smaller outer diameter

2. High precision to do small batch production

3. Cold drawn finished products of high precision, good surface quality

4.The steel pipe transverse area is more complex

5. Steel pipe is superior performance, dense metal


4. Specification

StandardDIN2391, DIN2445, EN10305, GB/T 3639, GB 8713
GradeST35(E235), ST37, ST24(E255), ST52(E355), 1010, 1020, 1035, 1045
O.D.30MM-450MM
W.T.2MM-40MM
Surface TreatmentBare, varnished,oiled, anti-corrosion coating as request
Packing

1. Bundle packing

2. Marking as per customer's requests

3. Paint on the pipe as per customer request

4. Pipe caps as customer request

Condirion of Delivery

1. NBK(+N)

after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium

2. GBK(+A)

after cold forming, annealing in non oxidizing medium protective gas

3. BK(+C)

the final heat treatment after cold forming, threfore small steel pipe plasticly, the plasticly degree does not guarantee

4. BKW(+LC)

after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring)

5. BKS(+SR)

have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing again


5.Tolerance in diameter

ODGB/T3639(GB8713)DIN2391(EN10305)Our TolerenceBest 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
ProcessDiameterLengthPrecisionInner Hole Roughness
Cold Rolled30-100mm≤12 mH8-H100.4-1.6
Cold Draw30-250mm≤12 mH8-H100.8-1.6
Honing40-500mm≤12 mH8-H90.4-0.8
Rolling40-400mm≤7 mH80.4
Inner DiameterH8H9H10

6.Mechanics performance

MaterialTensile strengthYield strengthElongationHardness
Ck20/20#/AISI1020>520 N/ mm2>375 N/mm2>15%>85HB
Ck45/45#/AISI1045>600 N/ mm2>520 N/ mm2>15%>85HB
ST52/16Mn/Q345B>600 N/ mm2>520 N/ mm2>15%>85HB
25Mn/STKM 13C-T>600 N/ mm2>530 N/ mm2>15%

>85HB


7.Our service

1. Cargo track service during transporting and feedback service after cargo is loaded on board.

2. Flexible terms of payment.

3. Big discount for repeat customers.

4. Smooth delivering procedure.

5. Payment Terms: T/T , L/C And so on.


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