Product Details

Our company

Established in December 1992, with registered capital of 5 million yuan and plant and office space of 12,000 square meters, covering an area of 20,000 square meters , YANTAI XINPENG STEEL PIPE CO., LTD. mainly produces various specifications of cold drawn,rolled precision steel tube,hydraulic cylinder tube and SRB Tube, which are widely used in such industries as hydro-cylinder, automobile, engineering machinery, textile machinery, printing machinery, oil drilling, etc. Our company is also the distributor of several domestic well-known steel tube plants in Shandong, and mainly distributes seamless steel tubes of all kinds of materials.

DESCRIPITION OF PRODUCTS

Product Item	BKS cold drawn steel tube high precision
Outer Diameter	30mm~250mm
Wall Thickness	2mm~30mm
Material Grade	10#-45#, 16Mn, Q195-Q345, ST35-ST52, STB35-STB42
Standard	GB/T8713, GB/T3639, DIN2391, EN10305
Application	Hydraulic Pipe, Hydraulic cylinder, automobile, oil drilling, textile machinery
Certificate	ISO9001:2008
Process Method	Cold Drawn/ Cold Rolled/Stress relieved, honed/SRB,Polishing
Package	According to the customer’s requirement
Delivery Time	20days more or according to the customer’s requirement
Price Item	FOB Yantai or as client's request
Payment	T/T or L/C or as client's request
ID tolerance	H7,H8,H9
Surface roughness	Ra0.2~0.8µm
Finally supply condition	BK BKS BKW NBK GBK

Mechanical Property

Delivery Condition	Cold drawn+stress-relieved(BK+S)(SR)			Cold finished(hard)(BK)
Steel Grade	Tensile strength (Rm Mpa)	Yield strength (ReH Mpa)	Elongation A5%	Tensile strength (Rm Mpa)	Elogation A5%
20#	≥520	≥375	≥15	≥550	≥8
45#	≥600	≥520	≥10	≥640	≥5
16Mn(Q345B Q345D)	≥600	≥520	≥14	≥640	≥5
25Mn	≥600	≥510	≥15	≥640	≥5
27SiMn	≥760	≥610	≥10	≥800	≥5
St45	≥520	≥375	≥15	≥550	≥5
E355(St52)	≥600	≥520	≥14	≥640	≥5
SAE1026	≥600	≥510	≥15	≥640	≥5

Dimension Tolerance

OD(mm)	ID(mm)	Tolerance
OD(mm)	ID(mm)	OD(mm)	ID(mm)	Wall thickness deviation(mm)	Ovality(mm)	Curvature(mm/m)
40-74	30-65	±0.01	-0.3,-0.5	≤0.5	≤0.1	0.3
74-98	65-85	±0.01	-0.4,-0.6	≤0.5	≤0.15	0.3
100-116	85-100	±0.02	-0.4,-0.6	≤0.6	≤0.15	0.3
124-134	110-115	±0.02	-0.6,-0.8	≤0.6	≤0.20	0.3
140-158	120-135	±0.02	-0.7,-0.9	≤0.8	≤0.20	0.3
165-176	140-150	±0.02	-0.7,-0.9	≤0.8	≤0.20	0.3
188-203	160-180	±0.02	-0.7,-0.9 (honed)	≤0.8	≤0.20	0.3

Package

1. bundle packing

2. marking as per customer's requests

3. paint on the pipe as per customer request

4. pipe caps as customer request

FAQ:

Q: What about your payment term?

A: Usually T/T or L/C or as client's request

Q: How about your capacity?

A: For steel pipes, 500 tons per month, 6000 tons per year.

Q: what about your package?

1. bundle packing

2. marking as per customer's requests

3. paint on the pipe as per customer request

4. pipe caps as customer requests

Q: If products have some quality problem,how would you deal with?

A: We will responsible for all of our quality problems and we are trade assurance supplier.

Our service

1.High precision: Xinpeng are equipped with JLB250T hydraulic cold drawn set, LD120 cold rolling set, annealing furnace, strong honed machine, polishing machine, lathe and any other kinds of testing machine.

2.Superior quality: Our materials mainly from some famous steel factories,such as BAO STEEL, Chengdu etc., which are best raw matirials factories in China.

3.Competitive price: some discount for repeat customers.

More details, pls contact us!