Hydraulic Cylinder

JIS STKM13C,JIS S45C

HONING SEAMLESS STEEL PIPE

REMARK :
Internal Diameter Accuracy :	H7、H8、H9
Internal Roughness :	Ra 0.2μm~ Ra 0.8μm
Standard Length :	3M~11M
Special Length :	12M
Internal Diameter :	18mm~300mm
Material :	JIS STKM13C, DIN ST52, SAE1020 or Mechanical Construction Use Carbon Steel Pipes,Other Specifications Can be made Customer Request based on.

CHEMICAL ANALYSIS & MECHANICAL PROPERTIES

Spec

Kind

Mark

Manufacture

CHEMICAL COMPOSITION %

STKM 13A

S
E

0.25 ＞

0.35 ＞

0.30
-
0.90

0.040
Under

STKM 13B

STKM 13C

INDUCTION	TENSILE TEST				BEND TESTFLATTENING TEST
	TENSILE (Kgf/)	YIELD (Kgf/)	ELOVG(%)		BEND ANGLE	INSIDE RADIUS	OUTSIDE RADIUS
			Test Piece 11th 12 th L	5 th Test Piece V
	380	220	30	25	90	6D	2/3D
	450	310	20	15	90	6D	3/4D
	520	390	15	10	－	－	－

FORMULA OF PIPE WALL THICKNESS PRESSURE RESISTANT GAUGE

t = P. D./200 S

t = Wall Thickness (mm)

P = The Largest Pressure (Kg/)

D = Steel Pipe Inside Diameter (mm)

S = σ / 5 Kg /

σ = The Lowest Numerical Value of Elongation (Kg/)

HARD CHROMIUM PISTON RODS

REMARK :
External Diameter Accuracy :	f 8
Surface Roughness :	Ra0.2μm~Ra0.4μm
Hard Chrome Thickness :	20Micron ± 10%
Surface Hardness :	HV 850(Minimum) up
Standard Length :	3M~6M up
Standard Size :	6 ~ 200
Material :	JIS S45C, SAE1045, DIN CK45, Special Specifications & materials can be Custom-made

Purpose :
Piston rod (chromed-plated steel bar)for pneumatic and hydraulic cylinder,

Spec		Chemical Analysis (%)					ForgingTemperature
JIS	DIN	C	Si	Mn	P	S	° C
S45C	CK45	0.42-0.48	0.15-0.35	0.60-0.90	<0.030	<0.035	1050-1150 Slow Cooling

Induction				Machine Function					Application
Normalizing °C	Annealing °C	Quenching °C	Tempering °C	Yield Point (Y.P)Kgf/	Tensile Strength (T.S)Kgf/	Elongation (EL)%	twist %	Hardness HB
820-870 Air Cooling				>35	>58	>20	----	167-229	Bend Axle Axles
	810 Furnace Cooling
----		820-870 Water Cooling	550-650 Quenching	----	----	----	----	137-170
----	----			>50	>70	>17	>45	204-269

var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));try {var pageTracker = _gat._getTracker("UA-11099815-1");pageTracker._trackPageview();} catch(err) {}

Hydraulic Cylinder

Welcome to Taiwantrade.com