Product Details

Product Description

En10305 carbon seamless cold drawn precision steel tube for hydraulic cylinder

chemical composition of seamless carbon steel pipe

Grade:20# 45# Q345B Q345D 25Mn 27SiMn E355 SAE1026

Standard:GB/T8713 GB/T3639 DIN2391 EN10305 ASTMA519

Grade	chemical composition%
Grade	C	Si	Mn	P	S
20#	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035
45#	0.42-0.50	0.17-0.37	0.50-0.80	0.035	0.035
SKTM13C-T(25Mn)	0.22-0.29	0.17-0.37	0.70-1.00	0.035	0.035
27SiMn	0.24-0.32	1.10-1.40	1.10-1.40	0.035	0.035
E355	≤0.22	≤0.55	≤1.6	0.025	0.025
Q345B	≤0.2	≤0.5	1.00-1.60	0.030	0.030
Q345D	≤0.2	≤0.5	1.00-1.60	0.030	0.030
SAE1026	0.22-0.28	0.15-0.35	0.60-0.90	0.040	0.050

PRODUCT INTRODUCTION

Diameter	OD 30mm - 250mm(1"~16") WT 3~30mm
Standard	GB/T8162,GB/T8163 and DIN/JIS/ASTM standard
	DIN	10#(ST37-2,ST35-8),20#(ST42,ST45-4/8), 45#(DIN CK45),16mn(ST52.4) etc.
	JIS	10#(STPG38,STS38,STB30,STB33,Stb35), 20#(STPG42,STB42,STS42,JIS S20C), 45#(JIS S45C), 16mn(STS49,STPT49) etc.
	ASTM/AISI	10#(ASTM a106/53 Gr.B,A192,A179-C), 20#(ASTM A106/53 Gr.B, A178-C,A210-A-1,A315-B,AISI1020), 45#(AISI1045), 16mn(ASTM A210-C) etc.
Usage		mechanical and also the hydraulic and penumatic cylinder
packing		Plastic Caps and mark on the piperust oil protectedorwooden package
payment term		T/T or L/C at sight.
Technique		cold drawning, hot rolling or hot expanding.
MOQ		5tons, more quantity price will be lower.
Tolerance:		OD +/-1%,Thickness+12.5% / -10%,length+/-2 cm

mechanical property

Delivery Condition		Cold drawn+ stress-relieved(BK+S)(SR)			Cold fished (hard)(BK)
Steel Grade	Tensile strength (Rm Mpa)		Yield strength	Elogation A5%		Tensile strength (Rm Mpa)	Elogation A5%
20#	≥520		≥375	≥15		≥550	≥8
45#	≥600		≥520	≥10		≥640	≥5
E355(Q345B,St52)	≥600		≥520	≥14		≥640	≥5

we can provide such pipes:

1.Seamless steel tube and carbon tube

Widely used in oil,drilling, gas, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and AISI 1020. We can also offer as customized seamless steel tube.

2.precision steel tubes

cold drawn steel tube/cold rolled steel pipe

Grade: 20#45#16Mn25Mn Q345 27SiMnE355ST52 STKM13A STKM13C

Standard: GB/T8713GB/T3639DIN2391EN10305ASTMA519

Range: 30-300mm

Length: 11m(max)

The cold process can remove the oxide layer outside to improve surface and offer better mechanical property, also can change ID,OD,WT to meet every client request.

3. Honed steel tube&SRB steel pipe

ID Tolerance: H8H9 or as client's request

ID Roughness: RA0.4micron(max)

Length: 6m(max)

Inner roughness: Ra0.2-0.8um

Straightness: 1:1000 or customized

This process can improve the roughness of the inner tube to 0.2-0.8um and make tube for cylinder using directly.

4.Hydraulic cylinder steel tube

Hydraulic cylinder tube features:

Hydraulic cylinder tube inside and outside the wall without oxidation layer, under high pressure, no leakage, high precision, high finish, cold bending deformation, flaring, flattening without cracks, surface rust proofing

1. The smaller outer diameter

2. High precision to do small batch production

3. Cold drawn finished products of high precision, good surface quality

4. The steel pipe transverse area is more complex

5. Steel pipe is superior performance, dense metal

Packaging & Shipping

packaging details:

1.bundle with steel strips

2.brand parcel

3.wooden box

4.as clinets request

delivery details: 15days after payment