St52 and E355 of DIN2391 Honing/Honed Tube for Hydraulic Cylinder

• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Oiled
• Usage: Hydraulic/Automobile Pipe, Food/Beverage/Dairy Products, Machinery Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Model NO.: BKS-HONED09
• Surface: Black Varnished/3PE/3lpe/Galvanized
• Pipe Ends: Plain or Bevel Ends
• Coupling: with Coupling or Socket
• Length: 1m~12m
• Production Standard: En 10305-1:2016; En 10204:2004
• Material Grade: C20/C45/S355/E355/S235/St37/St52/St44
• Product Name: Cold Drawn Seamless Honed Precision Tube
• Package: Plywood Boxes
• ID Tolerance: 0.1mm Max
• Straightness: 1/1000
• ID Roughness: Ra 0.4micron(Max)
• Tolerance: H7 H8 H9 H10
• Delivery Condition: Bk, Bks, Nbk
• Inspection: Inner Surface NDT(Nondestructive Testing)
• Transport Package: Wrapped by Plastic Bags Andsteel Strips in Bundles
• Specification: OD: 16~400mm; THK: 3~40mm
• Trademark: Boerking
• Origin: Tianjin, China
• HS Code: 73041930
• Production Capacity: 10000ton/Year

Product Description

 

Product Description

Congratulations you find us the best supplier ↓
We do care: 
                   --Good Quality
                       --On-time Delivery
                          --Competitive Price
                             --Efficient After Service 
 

Why you choose us?

1. more than 20 years experiences in steel business

2. good quality

3. competitive price

4. meet your needs via reprocessing

5. excellent service

6. short delivery time

7. long mutual beneficial business cooperation

Product description

1. Hydraulic Cylinder Tube------Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and 1020. We can work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.
2. Honed tube ----- used in Elevator buffer and Hydraulic Cylinder .This kind tube have a better roughness inner the tube,ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Range: ID 50-250mm and Length can work at most 6M.
3. Cold finished tube---- Widely Used. Processing range 30-300mm, biggest length is 11M.
 

OD	GB/T3639		DIN2391 (EN10305)	Our Tolerance	Best Quality
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
160mm-230mm	±0.50mm		±0.50mm	±0.40mm
Tolerance in WT	±0.12mm		±0.10mm	±0.05mm	±0.03mm
PROCESS
Process	Diameter		Length
Cold Rolled	30-100mm		≤10 m
Cold Draw	30-250mm		≤10 m
Honing	40-500mm		≤10 m
Skived burnished	40-400mm		≤76m
HONED OR SRB TUBE TOLERANCE
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

 

Products display

Hydraulic Cylinder Honing Tube
Inside Dia   (mm)	ID Tolerance (mm)				WT Tolerance    (mm)
	H7	H8	H9	H10
≤30	+0.021/0	+0.033/0	+0.052/0	+0.084/0	±7.5% >210mm ±10%
30 - ≤50	+0.025/0	+0.039/0	+0.062/0	+0.100/0
50 - ≤80	+0.030/0	+0.046/0	+0.074/0	+0.120/0
80 - ≤120	+0.035/0	+0.054/0	+0.087/0	+0.140/0
120 - ≤180	+0.040/0	+0.063/0	+0.100/0	+0.160/0
180 - ≤250	+0.046/0	+0.072/0	+0.115/0	+0.185/0
250 - ≤315	+0.052/0	+0.081/0	+0.130/0	+0.210/0
315 - ≤700	+0.057/0	+0.089/0	+0.140/0	+0.230/0

Delivery Condition	Cold Finished (hard) (BK)		Cold Drawn and Stress-relieved (BK+S)
Steel Grade	Tensile Strength (Mpa)	Elongation (%)	Tensile Strength (Mpa)	Yield Strength (Mpa)	Elongation (%)
20#	≥550	≥8	≥520	≥375	≥15
45#	≥640	≥5	≥600	≥520	≥10
16Mn	≥640	≥5	≥600	≥520	≥14
25Mn	≥640	≥5	≥600	≥510	≥15
27SiMn	≥800	≥5	≥760	≥610	≥10
ST52	≥640	≥5	≥600	≥520	≥14
SAE1026	≥640	≥5	≥600	≥510	≥15

 

Detailed Photos

 

 

Company information 

     Tianjin Boer King Steel is a  professional  trading company and has been in steel industry for more than 15years, specializing in seamless steel pipe,oil casing/drill pipe, galvanized steel pipe, stainless steel pipe,ERW/SSAW/LSAW/ welded pipe.

      Also we sale hot and cold rolled steel coils,steel plates,galvanized steel coils, all kinds of profiles like H-beam, Angel bar,C profile etc.

      We have established long term cooperations with several famous steel manufactures all over the world, and we can offer you best quality products with competitive price which will give you an edge over your competitors.

      Besides, we offer best service all the time.We will do our best to satisfy you needs for the products. Our products have been sold in many countries and areas of the world including South America, Iran, Kenya, Israel etc, and our export volume reaches 160,000tons per year.
 
      We execute quality gurantee system ISO 9001,2008 strictly and all certicates and the third party inspection like MTC,API,ABS,ISO9001,SGS BV etc. will be provided as client's requirements.



FAQ

Q1:How about the quality?
A:Third party inspections are always welcomed, like TUV, BV, SGS.   All of the goods will be released together with MTC and stamped by TPI. 

Q2: Can you accept customization?
A: Yes.we can do customization for you.

Q3: Do you provide samples? Free or not?
A: Yes, we could offer the sample for free but do not pay the cost of freight.

Q4: How long is the delivery time?
A: Generally about 5-10 days if the goods in stock. Or will be 15-30 days if not in stock.

Q5: How about the trade terms?
A: EXW, FOB, CFR, CIF, LC will be accepted.