Product Details

Commodity name	Cold finished seamless steel pipe
Dimension	OD:30-250mm,WT:2-30mm
Standard: GB/T8713, GB/T3639, DIN2391, EN10305, ASTMA519, ASTMA106-2006, API 5L,etc	1.DIN Standard	10#(ST37-2,ST35-8), 20#(ST42,ST45-4/8), 45#(DIN CK45), 16mn(ST52.4) etc.
	2.JIS standard:	10#(STPG38,STS38,STB30,STB33,Stb35), 20#(STPG42,STB42,STS42,JIS S20C), 45#(JIS S45C), 16mn(STS49,STPT49) etc.
	3.ASTM/AISI standard	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.
Technique	Cold drawing, cold rolling, hot rolling or hot expanding
Usage	Seamless steel pipes for low and medium pressure boiler, high pressure boiler, ship-building, liquid service , petroleum cracking, chemical fertilizer equipment ,drawing-oil-equipment and structure purposes.
Package	steel strip bundles, black paint coating, beveled ends or plain
Payment terms	L/C or T/T(30% deposit and 70% balance against B/L copy)
Delivery	FOB, CIF, CFR, etc
Shipment	15 working days after getting payment

ID tolerance

ID size

ID deviation (mm)

H10

+0.021

+0.033

+0.052

+0.084

>30~50

+0.025

+0.039

+0.062

+0.100

>50~80

+0.030

+0.046

+0.074

+0.120

>80~120

+0.035

+0.054

+0.087

+0.140

>120~180

+0.040

+0.063

+0.100

+0.160

>180~250

+0.046

+0.072

+0.115

+0.185

>250~315

+0.052

+0.081

+0.130

+0.210

>315~400

+0.0527

+0.089

+0.140

+0.230

Delivery condition:

1. NBK(+N)

after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium

2. GBK(+A)

after cold forming, annealing in non oxidizing medium protective gas

3. BK(+C)

the final heat treatment after cold forming, therefore small steel pipe plastically, the plastically degree does not guarantee

4. BKW(+LC)

after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring)

5. BKS(+SR)

have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing again

Our Certificate:

Company & workshop:

Yantai Xinpeng Steel Pipe Co., Ltd,established in Dec 1992, with registered capital of 5 million Yuan, we have more than 20 years experience in manufacturing and exporting steel pipe. Our company mainly produces various specifications of cold finished precision steel pipe, which are widely used in hydraulic Pneumatic cylinder for automobile, engineering machinery, textile machinery, printing machinery, oil drilling and other field.

Our company are equipped with JLB250T hydraulic cold drawn set,LED120 cold rolling set, annealing surface, strong honed machine, polishing machine, lathe, saws CNC skived and roller burnished machine, kinds of testing machine. Strictly comply with ISO9001 System, assure the best quality of the products.

FAQ(Frequently Asked Questions)

1.Where is your factory?

Our factory is located in APEC Science &Technology Industrial park, Zhifu District,Yantai,Shandong,China

2.What material do you have?

10#,20#,45#,25Mn,E355(Q345B,St52),27SiMn,etc.

3.When can I get the quotation ?

within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or

tell us in your email so that we will regard your inquiry priority.

4. Can we get free samples ?

Yes, of course. After price confirmation, you can require for samples to check our quality counter display.
samples are free, you only pay for freight charge is ok.

5. What is your terms of delivery and payment terms?

We accept EXW, FOB, CIF, etc; payment terms with L/C or T/T(30% deposit+70% balance against B/L copy)

You can choose the one which is the most convenient for you.

6. How about your delivery time?

Usually 15 working days after order confirmed& getting T/T deposit or original L/C