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St35.4 precision hydraulic cylinder steel tubing

FOB Price

USD $1,000 - $1,500 / Metric Ton

10 Metric Tons(Min.Order)

Supply Ability 5000 Metric Ton / Metric Tons per Month
Port Qingdao
Payment TermsT/T

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Product Details

Thickness	2, 30
Section Shape	Round	Outer Diameter	30 - 250 mm
Place of Origin	Shandong, China	Secondary Or Not	Non-secondary
Application	Other, hydraulic tube	Technique	Cold Rolled
Certification	Other, ISO9001:2000	Surface Treatment	Other, honed/smooth
Alloy Or Not	Non-alloy

Product Description

Commodity name: St35.4 precision hydraulic cylinder steel tubing

1.Grade: 20#(ck20,aisi1020),45#(ck45,aisi1045),st52(Q345D,16Mn),25Mn,27SiMn

2.ID:30-250mm

3.ID tolerance:H8,H9

4.Surface roughness:Ra 0.02— 0.4μm

5. Final supply condition:cold drawn /cold rolled and stress-relieved(BK+S)

6. Machining allowance:0.5-1.5mm

7.Wall thickness:10%×ID

Variety

Processing	Cylinder Diameter	Straightness	Size Accuracy	W.T/mm	Inner Bore Roughess
Cold drawn/ Cold rolled	ID30-250	0.3	H9-H11	±10%	0.4~1.6um
Honed tube	ID50-250	0.3	H7-H9	±10%	<0.4um

Mechanics performance

Material	Tensile strength	Yield strength	Elongation	Hardness
Ck20/20#/AISI1020	>520 N/ mm²	>375 N/mm2	>15%	>85HB
Ck45/45#/AISI1045	>600 N/ mm²	>520 N/ mm²	>15%	>85HB
ST52/16Mn/Q345D	>600 N/ mm²	>520 N/ mm²	>15%	>85HB
25Mn/STKM 13C-T	>600 N/ mm²	>530 N/ mm²	>15%	>85HB

Dimension tolerance

ID size

ID deviation (mm)

H10

+0.021

+0.033

+0.052

+0.084

>30~50

+0.025

+0.039

+0.062

+0.100

>50~80

+0.030

+0.046

+0.074

+0.120

>80~120

+0.035

+0.054

+0.087

+0.140

>120~180

+0.040

+0.063

+0.100

+0.160

>180~250

+0.046

+0.072

+0.115

+0.185

>250~315

+0.052

+0.081

+0.130

+0.210

>315~400

+0.0527

+0.089

+0.140

+0.230

Delivey conditions:

Standard packing with plastic caps and strapped bundles.
Commercial length 2000~10500mm,custom lengths upon request
Surface protection

We can supply cold drawn/cold rolled seamless tube,honed tube,hydraulic tube,please feel free to contact us.

Pictures

We are a professional company which has manufactured seamless steel tube for several years in China, with good quality and pretty competitive price.

Include seamless structure, seamless transmission fluid, hot rolled seamless hydraulic prop, low-pressure boiler seamless pipe,oil Casing,and so on. We always be reliable partner to provide our products to you.

Product Description

Mainly used for the general structure and the mechanical structure.It represents material (brand) : carbon steel 10# 20#, 45 # ;Alloy steel Q345, 20 Cr ,40 Cr, 30-35 CrMo, 42 CrMo, etc.

Our Services

1.Fast Delivery:around 15 days below 200Metric Tons after received Deposit

(lot of high quality steel pipe in stock)

2. Quality Assured: Strictly acc. To International standard ASTM & BS & EN & JIS, with System ISO certification

3. Good Service: supplied professional technical guide free of charge at anytime;

4. Reasonable Price: to be better support your business

Packaging & Shipping

1. In bundle with steel strip, caps for both ends, marking,etc.standard exporting package

2. Container: 25 tons/container for pipe with usual outer diameter. For 20" container the max length is 5.8m;

For 40" container the max length is 11.8m.

3. Bulk carrier: It is no requirements to the length of the pipe. But its booking space time is long.

4. For precision steel pipe:In wooden cases,nylon bags, carton, wooden, pallet or in bulk

Process

Some Demension:

OD x WT	OD x WT	OD x WT	OD x WT
4*0.5	16*0.5	26*1.8	35*9.0
4*0.8	16*0.8	26*2.0	35*10
4*1.0	16*1.0	26*2.2	38*0.5
4*1.2	16*1.2	26*2.5	38*0.8
5*0.5	16*1.5	26*2.8	38*1.0
5*0.8	16*1.8	26*3.0	38*1.2
48*5.0	70*2.8	90*10	130*14
48*5.5	70*3.0	90*12	130*16
48*6.0	70*3.5	90*14	130*18
48*7.0	70*4.0	90*16	140*2.5
48*8.0	70*4.5	95*2.0	140*2.8
48*9.0	70*5.0	95*2.2	140*3.0

Tolerance in Dimension:

OD	GB/T3639(GB8713)	DIN2391(EN10305)	Our Tolerence	Best 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

Process	Diameter	Length	Precision	Inner Hole Roughness
Cold Rolled	30-100mm	≤12 m	H8-H10	0.4-1.6
Cold Draw	30-250mm	≤12 m	H8-H10	0.8-1.6
Honing	40-500mm	≤12 m	H8-H9	0.4-0.8
Rolling	40-400mm	≤7 m	H8	0.4

Inner Diameter	H8	H9	H10
30mm	±0.033	±0.052	±0.084	5-30mm
30-50mm	±0.039	±0.062	±0.100	±0.080
50-80mm	±0.046	±0.074	±0.120
80-120mm	±0.054	±0.087	±0.140
120-180mm	±0.063	±0.100	±0.160
180-250mm	±0.072	±0.115	±0.185
250-315mm	±0.081	±0.130	±0.210
315-400mm	±0.089	±0.140	±0.230

hydraulic cylinder tube st52 din2391

Mechanical Properties:

Condition	Materail Grade	T.S (MPa)	Y.S (MPa)	Elongation(%)
BKS	ST35 (10#)	≥420	≥315	≥14
BKS	ST45(20#)	≥520	≥375	≥12
BKS	ST52(16Mn)	≥580	≥420	≥10
GBK	ST35 (10#)	≥315		≥35
GBK	ST45(20#)	≥390		≥32
GBK	ST52(16Mn)	≥490		≥30
NBK	ST35 (10#)	340-470	≥235	≥32
NBK	ST45(20#)	440-570	≥255	≥30
NBK	ST52(16Mn)	490-630	≥335	≥28

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, card sets of joints, pipe joints, rubber machinery, forging machinery, casting machinery, engineering machinery, automotive high pressure steel pipe concrete pump, sanitation vehicle, automobile industry, shipbuilding industry, metal processing, military industry, diesel engine, the internal combustion engine, air compressor, construction machinery, forestrymachinery, etc.

package

Xinpeng have passed ISO9001 verified

Contact Us

Yantai Xinpeng Steel Pipe Co., Ltd.: Contact nameJudy Gao
Chat Now; Phone0086-535-6835398; Address2th,Binglun Road,APEC Technology Industrial Park,Zhifu District,Yantai City, Yantai, Shandong

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St35.4 precision hydraulic cylinder steel tubing

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