Product Details

Mechanical Using Cold rolled Bks seamless steel pipe

YanTai XinPeng Steel Pipe Co.,Ltd located in Yantai, a beautiful

coastal city in Jiaodong Peninsula, our company is in the (APEC)

Science & Technology Industrial Park, urban area of Yantai, with

convenient transportation. Established in December 1992, with

registered capital of 5 million yuan .

FACTORY AND PRODUCT PICTURE

St52 belongs to low-alloy high-strength steel,Corresponding to

China Q345B and Q345D(16Mn)

Chemical composition:
C:≤0.18;Si:≤0.50;Mn:≤1.70;P:≤0.030;S:≤0.025;Nb:≤0.07;V:≤0.15;

Ti:≤0.20;Cr:≤0.30;Ni:≤0.50;Cu:≤0.30;N:≤0.012;Mo:≤0.10;Als:≥0.015.
mechanical property
yield strength(ReH Mpa):≤16mm:≥345;16-40mm:≥335;40-63mm:≥325;

63-80mm:≥315;80-100mm:≥305;100-150mm:≥285;150-200mm:≥275;
200-250:≥275;250-400:≥265.
tensile strength(Rm Mpa):450-630.
elongation:≥21.
impulse test:-20℃:≥34

For St52 belongs to low-alloy high-strength steel.Our company

mainly produces various specifications of cold drawn,rolled

precision steel tube,honed tube and SRB Tube, which are widely

used in such industries as hydro-cylinder, automobile,engineering

machinery, textile machinery, printing machinery, oil drilling, etc.

four diffrent process techniques seamless pipe

Process	Diameter	Length	Precision	Inner Hole Roughness
Cold Rolled	30-100mm	≤12 m	H8-H10	0.4-1.6
Cold Draw	30-250mm	≤12 m	H8-H10	0.8-1.6
Honing	40-500mm	≤12 m	H8-H9	0.4-0.8
Rolling	40-400mm	≤7 m	H8	0.4

Delivery Condition

1. BK(+C)

2. BKS(+SR)

3. NBK(+N)

4. BKW(+LC)

5. GBK(+A)

USED FOR HYDRAULIC CYLINDER TUBE

seamless tube for hydraulic cylinder
Standard	DIN2391, EN10305, JIS G3445, ASTM A519, GB/T 8713...
Material	ST45, ST52, E355, E355SR, STKM13C, SAE1026, 20#, Q235B
Heat treatment	BK+S
Specification	Outer diameter(mm)	Inner diameter(mm)
	30-250mm	40-250
I.D Tolerance	H8-H9
Length	Max 6m
Straightness	1/1000
ID roughness	RA 0.4micron(max)
Technology	Honed & SRB(SKIVED AND ROLLER BURNISHED )
Scope	Honed tube for hydraulic cylinder, swivel crane, injection machine and construction machine application

OUR TEAM

USED FOR

Guaranteed

Guaranteed

If products’ quality doesn’t match the description we give or promise before you place your order,we promise 100% refund.

(1): High quality products with reasonable price.

(2): We are factory and trading company.
(3): Every process will be checked by responsible QC which insures every product's quality.
(4): Professional packing teams which keep every packing safely.
(5): Trial order can be done in one week.
(6): Samples can be provided as your requirements. Free sample

(7): We have more than 24years experience in exporting products to worldwide countries, can provide the high quality products.

(8): We have five thousand tons of stock in warehouses with abundant capital. Furthermore, we offer charge sales, credit and 7-day 24-hour services.

(9): Wide excellent experiences with after-sale service.

FAQ

Q: How many days of your delivery?

A: The general delivery is 30~50 days according to your quantity.

Q :Which countries do you export to?

A: America, India, Korea, Pakistan, Turkey, Iran and so on.

Q: What is your main payment itme?

A: T/T and L/C

Q: Are you trading company or manufacturer ?

A: We are manufacturer .

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.