Limestone Quarry Plant

One of the Top 500 enterprises in China foreign trade

QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association

 
 

Honed Tube,Honed Pipe

Honed tube

Standard:DIN2391
ST52 Honed tube
Random length:4-5.7meters

Honed Tube

Honed tube

1. MATERIAL SPECIFICATION AND REF. DOCUMENT

ST52,BK+S,DIN2391 OR Equivalent

2. CHEMICAL COMPOSITION (%)

C (Max) Mn(Max) Si(Max) S(Max) P(Max)

0.22 1.6 0.5 0.035 0.035

3. MECHANICAL PROPERTIES

Elongation(Min) Y.S (Min.) UTS (Min.)

≥15 470 N/MM2 580 N/MM2

4. SUPPLY CONDITION

Cold drawn seamless steel tube, stress relieved and honed or skived roller burnished

5. SURFACE ROUGHNESS

Ra = 0.4~0.8Micron

6. TOLERANCES ON INNER DIA

ISO H8

7.TOLERANCES ON WALL THICKNESS

≤ Dia120 +/-10 % of wall thickness

≥ Dia120 +/-10 % of wall thickness

8. STRAIGHTNESS

≤1 mm/M

9. OD TOLERANCE

≤ Dia 40 +/-0.2 mm

≥ Dia 40 ≤ Dia 100 +/-0.3mm

≥ Dia 100 +/-0.5mm

10. LENGTH AND CUT TOLERANCE

Length ≤ 500mm , +2mm

> 500mm ≤ 2000mm, +3mm

> 2000mm ≤ 5000mm, +5mm

> 2000mm ≤ 7000mm, +10mm

11. TUBE ENDS

Tube ends shall be cut nominally square to the axis and free from burs

12. APPEARANCE

Tube shall have a smooth internal and external surface consistent with cold working

process, tube inner surface should be free from rust, scratches and other surface

irregularities.

13. CERTIFICATION

Material certificates will be send to u if want.

14. PACKINGe

Anti rust oil to be applied on material and both ends closed by plastic cap and

bundled by steel strips,braiding parcel.

15. SCOPE

Hydraulic cylinder tube for swivel crane, injection machine and construction


 

 

DIN 2391 hydraulic honed tube
1.Top quality and low price
2.Delivery:15-30days
3.Payment:L/C T/T
4.Original:CN

Honed Pipe

DIN2391 seamless steel honed tube

hydraulic cylinder tube ready to hone tube pneumatic
cylinder pipe ready for hydraulic & pneumatic cylinders' use
Product Name: SMALL SIZE HONED tube
READY FOR HYDRAULIC & PNEUMATIC CYLINDERS’ USE
SPECIFICATIONS ON MATERIAL, TECHNICAL AND PACKING
MATERIAL SPECIFICATIONS
GRADE 20#, 45#, 27SiMn, 20G, ST52, ST52.3, 16Mn, Q235, Q195, Q345…
CHEMICAL COMPOSITION (%) C Mn (Max) Si (Max) S (Max) P (Max)
0.17-0.34 1.6 1.1 0.035 0.035
MECHANICAL PROPERTIES Elongation (Min) Y.S (Min) UTS (Min)
12 460 N/MM² 580 N/ MM²
STANDARD DIN 2391OR EQUIVALENT
DELIVERY CONDITION Cold drawn seamless steel pipe, stress relived and honed
treatment or skived roller burnished
hydraulic cylinder tube cylinder steel pipe ready to hone tube pneumatic cylinder tube
TECHNICAL SPECIFICATIONS
DELIVERY CONDITION Cold drawn seamless steel pipe, stress relived
and honed treatment or skived roller burnished
OUTSIDE TREATMENT Cold Drawn surface with BKW or BKS delivery conditions
INSIDE ROUGHNESS >= 0.02ra  
SIZE OD 40-255 mm
TK 4-12.5 mm
LENGTH 200-12000 mm
STRAIGHTNESS <= 1:1000
TUBE ENDS THE TOLERENCE FOR THIS IS WITHIN 3MM.
AND THE TUBE WILL BE CUT IN SHARP ENDS AND CHMFERED
PACKING SPECIFICATIONS
SURFACE PROTECTION Anti rust oil will be applied on material and both ends with plastic caps from dust.
PACKING DETAILS Firm, cheap and safe package for different length.
Bundle of long honed tube. Tin truck for short honed tube. (Reference Picture)
Paint is available

 


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