Seamless steel pipe
Welded steel pipe
Carbon steel pipe
Alloy pipe
galvanized steel pipe
stainless steel pipe
steel pipe schedule
pipe fittings
DIN2391 St52 hydraulic cylinder 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 H9
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
About factory
1.NEW SINDA STEEL PIPE CO.,LTD.is one of the biggest manufacturer about the steel pipe from china.
2.We have got two complete production line as:
-, Cold drawn from size 1/4"-5" OD pipe.
-, Hot rolled from size 6"-16" OD pipe, also we can work from size 20"-24" as hot expand pipe.
3. We have got carbon steel pipe for liquid use (ASTM A106/A53GR.B),steel pipe for casing (P-110, K55, N80 and so), steel pipe for pipeline (API5L GR.B, X42, X52, 60, X70), steel pipe for construction (high thickness of ST45, ST52).
Looking forward for a long-term and win-win coorperation.
