Product Details

01/ ABOUT OUR PRODUCT

Product Item	st52 BKS surface polished cold drawn seamless steel tube
Outer Diameter	30mm~250mm
Wall Thickness	2mm~30mm
Material Grade	10#-45#, 16Mn, Q195-Q345, ST35-ST52, STB35STB42, 20#, 45#, 16Mn, Q345, ST35, St45, St52, St52.4, STB42, 16Mn,St52,10#-45#,ST35-ST52
Standard	ASTM, DIN, ASTM A1020-2002, DIN 2391
Application	Hydraulic Pipe, Hydraulic cylinder, automobile, oil drilling, textile machinery
Certificate	ISO9001:2008
Process Method	Cold Drawn/ Cold Rolled
Surface Finish	Annealed, Pickled
Package	According to the customer’s requirement
Delivery Time	10days more or according to the customer’s requirement
Price Item	FOB CIF EXW
Payment	T/T(30% in advance, 70% against the BL Copy) and L/C at sight or as negotiation
ID tolerance	H8,H9b H10 or as customized
Surface roughness	Ra0.2~0.8µm
Finally supply condition	BK BKS BKW NBK GBK

ABOUT SOME DIMENSIONS

40*50	90*110	140*170	190*215
40*55	95*110	145*170	190*220
50*60	95*115	150*170	190*225
50*65	100*110	150*175	200*220
55*70	100*114	150*180	200*225
60*70	100*115	155*180	200*230
60*75	100*120	160*175	200*245
60*78	100*125	160*180	200*250
63*73	105*125	160*185	220*250
63*75	110*125	160*190	220*270
63*76	110*130	160*195	225*250
63*78	115*130	165*190	240*273
65*80	115*135	165*205	250*290
70*80	120*140	170*200	250*300
70*82	125*140	180*200	according to customer's need
70*85	125*145	180*205
70*90	125*150	180*210
75*90	130*150	180*215
80*92	130*155	180*220
80*95	130*160	185*205
80*100	135*160	185*215
85*100	140*160	185*220
90*105	140*165	190*210

ABOUT TOLERANCE

ID size

ID deviation (mm)

+0.021

+0.033

+0.052

>30~50

+0.025

+0.039

+0.062

>50~80

+0.030

+0.046

+0.074

>80~120

+0.035

+0.054

+0.087

>120~180

+0.040

+0.063

+0.100

>180~250

+0.046

+0.072

+0.115

>250~315

+0.052

+0.081

+0.130

>315~400

+0.0527

+0.089

+0.140

02/ABOUT OUR COMPANY

we are the top 5 manufacture of precision seamless steel tube in China ,we have passed ISO 9001 verified certificate , and our company mainly produces various specification cold finished steel tube .which are widely used in hydraulic cylinder .automobile ,oil drilling ,textil machinery ,and so on ,if you are interested in our product welcome to our company to visiting and negotiate .

03/ABOUT OUR PROCESSING

Packaging & Shipping

packaging details: standard packing with plastic caps and starpped bundles,standard wheight approx 1500Kg

delivery details: 15 days after receiving downpayment or L/C or as your request

testing

1.100% PMI,Spectro Chemical Aanlysis Test for Raw Material

2.100% Dimension & Visual Examination

3. Mechanical Properties Test Include Tension Test,Flaring Test (For Seamless tube/pipe)/

Flange Test (For Welded Pipe & Tube), Hardness Test ,Reversed Flattening Test

4.100% Hydrostatic Test or 100% NON-DESTRUCTIVE Test (ET or UT)

5.Radiographic Test for Welded Pipe (shall be accordance with specification,

or shall be as agreed upon between the purchaser and vendor)