Product Details

Company Information

Yantai Xinpeng Steel Pipe Co,.Ltd. is one of the best suppliers of the precision tube and hydraulic cylinder tube in North of China. Since 2002 cold drawn machine set importing, Xinpeng become a big precision steel pipe manufacturer with 500Mt month productivity in the next 12 years.

Products widely used in the hydraulic cylinder of the heavy machinery, Cranes, excavator, forklifts and the Petrol industry.

16Mn is called low-alloy high-strength structural steel: the carbon

content is 0.1%-0.25%, and the main alloy element Mn (Mn), silicon (Si), vanadium (V), niobium (Nb) and titanium (Ti) are added.16Mn is the old

national standard, which is now classified as low alloy and high strength structural steel. The current number is Q345.

Its total alloy content is <3%.It is divided into four levels: 300, 350, 400

and 450MPa.There are mainly Q295, Q345, Q390, Q420 and Q460.Yield:

"Q" is the word "bow" of Chinese pinyin capital letter, followed by

Numbers for the brand minimum yield point (sigma s) value, the

following symbols are according to the steel impurity element content

from high to low (sulfur, phosphorus, and along with the change of the

carbon, manganese element is divided into A, B, C, D four grades.In

which A and b-grade steel are commonly referred to as 16Mn.

Product Description

Hydraulic cylinder tube is a kind of after cold rolled processing of a kind of high precision steel tube. Precision seamless steel tube wall inside and outside are without oxidation layers, under high pressure without lea, high precision, high finish, cold bending deformation, flaring, flattening without cracks, etc. It is mainly used to produce pneumatic or hydraulic components products.

The difference between precision steel pipe and Mild seamless pipe:

1. The seamless steel tube with obvious difference is that dimensional accuracy can be up to 0.1mm.

2. High precision steel pipe diameter surface finish, the customer without processing can be used directly and ordinary seamless steel tube to the customer and lather, polishing processing.

3. The smaller outer diameter.

4. High precision to do small batch production surface quality

5. ISO9001:2015 verified supplier, quality is better.

YANTAI XINPENG STEEL PIPE offers an extensive range of seamless precision steel tubes. The seamless precision steel tubes can be used for a wide range of precision mechanical spare for car and cylinder accord to standard DIN2391/ EN10305-1/ GB/T3639-2009.

Processed: Cold drawn or cold rolled (Burnish or other requirements can be agreed)

Length: ≤10m

Straightness:0.3~0.8mm/m

Wall Thickness tolerance: ±10% Inner

Roughness: 0.8~1.6μm

Dimensional Accuracy:

1. Tolerance on Inner Diameter: H8 H9 H10

2. Tolerance on Wall Thickness: (also can do customized)

Diameter: >40 +/-0.2mm

Diameter: 40 <100 +/-0.3mm

Diameter >100 +/-0.5mm

3. Surface Roughness: a=0.3~0.4micron

Length: Random length4.5-6m or as per order confirmation

Mill Test Certification: En10204/3.1B

4. Delivery condition: BKS BK NBK GBK

Size Range of Us

MECHANICAL PROPERTIES (we do much better than this)

Condition	Material Grade	T.S (MPa) lowest	Y.S (MPa) lowest	Elongation (%)
BKS	ST35 (10#)	≥420	≥315	≥14
BKS	ST45(20#)	≥520	≥375	≥12
BKS	ST52(16Mn)	≥580	≥420	≥10
GBK	ST35 (10#)	≥315		≥35
GBK	ST45(20#)	≥390		≥32
GBK	ST52(16Mn)	≥490		≥30
NBK	ST35 (10#)	340-470	≥235	≥32
NBK	ST45(20#)	440-570	≥255	≥30
NBK	ST52(16Mn)	490-630	≥335	≥28

Our Process

Our Certificate

Our Certificate

Our Team

Our Team

Our Clients

Our Clients

Packaging & Shipping

The packaging process and other Terms

Transportation: By Sea
20' FCL (means the length than 5,800mm)
40' FCL (means the length than 11,800mm)
Bulk cargo (means the quantity is more than 200MT)
With regards to other length or quantity, it should be taken by clients themselves
Delivery time: 25-35days to the dispatch port after receipt of T/T or L/C at sight
Optional: wooden box; caps; vanished coating. Clients should pay for this fee
Payment: T/T or L/C at sight, T/T 100% in advance (the order less than 3MT)
Price item: FOB, CFR, CNF, C&F, CIF
Origin: China
Third party inspection: BV, SGS, Lloyds. The Expense needs to stand by clients.