Product Details

Product Description

Wholesale price cold rolled tube aisi 4130 steel

Working method	Range	ID size	Tolerance
			ID Tolerance			WT	Ovality	Curvature
			H8	H9	H10	WT	Ovality	Curvature
cold drawn	25-250	>30-50	+0.039 0	+0.062 0	+0.100 0	±5% to 7.5% ID>210mm ±10%	≤0.10-0.20	0.3
cold rolling	25-150	>50-80	+0.046 0	+0.074 0	+0.120 0
cold-drawn-honed	40-250	>80-120	+0.054 0	+0.087 0	+0.10 0
cold drawn-SRB	50-250	>120-180	+0.063 0	+0.100 0	+0.160
cold drawn-polish	40-250	>180-250	+0.072 0	+0.115 0	+0.185 0
polish-SRB	50-250	other size and technique parameter upon request

specification

Name	high pressure gas cylinder using surface polished honed pipes
Pipe Size	1/2"-32"
Wall Thickness	SCH10,SCH20,SCH30,STD,SCH40,SCH60,XS,SCH80, SCH100,SCH120, SCH140,SCH160,XXS,DIN, JIS standard thickness
Length	5.8m,6m, 11.8m,12m or depending on customers' requirements
Standard	ASTM A53, A106, API 5L, ASME B36.10M-1996 DIN1626, DIN1629, DIN17175, DIN 2448 JIS G3452,JIS G3454,JIS G3455,JIS G3456,JIS G3457,JIS G3461
Material	Q235, 20#, Q345 A53B, A106B, API 5L B,X42,X46,X52,X60, X65 ST37.0,ST35.8,St37.2,St35.4/8,St42,St45,St52,St52.4 STP G38,STP G42,STPT42,STB42,STS42,STPT49,STS49
Application	Low and middle pressure fluid pipeline, boiler, petroleum and natural gas industry, drilling, chemical
Surface	Black painting, black varnish, transparent oil, hot galvanized, 3PE,epoxy coating,BE,PE.etc.
Package	As per customers’ request
Certificate	ISO9001, API etc
Delivery	EXW FOB CIF CFR
Payment	Bank Transfer
Advantages	1.Reasonable price with excellent quality 2.Abundant stock and prompt delivery 3.Rich supply and export experience, sincere service 4.Reliable forwarder, 2-hour away from port.

Cold drawn(rolled) precision steel pipe and the general difference between ordinary seamless steel pipe:

1, the general characteristics of ordinary seamless steel pipe is welded seam, can withstand greater pressure. The product can be very rough as cast or cold parts.

2, cold drawn precision steel pipe is the product in recent years, mainly the hole, the outer wall size has strict tolerances and roughness.

Cold drawn (rolled) precision steel pipe features:

1. smaller diameter.

2. High precision can be done small batch Health

3. Cold drawn (rolling) finished high precision, good surface quality.

4. Steel pipe cross-sectional area is more complex.

5. Steel pipe performance is superior, the metal is relatively dense.

our tubes

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

Company Information

1.Our History

In 1992,Yantai Xinpeng steel pipe established.

In 2000,Xinpeng is equipped with JLB250T cold drawn machine set, LD120 precision cold rolled machine set, straightening machine, box heat treat furnaces(8000-10000mm)

In October 2002, Shandong Penghui Hydraulic Cylinder Co,. LTD. Was established.

In 2012, Xinpeng have equipped the CNC Skive and roller burnished machine set (6000mm)

In 2013, Xinpeng equipped several powerful honing machines. Combined cold drawn , cold rolling, heat treatment and SRB and honing process together to product the best quality products.

2. Our Factory

Yantai xinpeng steel pipe co,.ltd. is Located in the beautiful coastal city-Yantai, urban area of Yantai with convenient transportation.

Registered capital is 5 million Yuan.

Workers are more than 100 persons.

Monthly output is 500tons.

3.Our Product

Yantai Xinpeng Products includes the following:

1. Cold drawn tube

2, cold rolled tube

3,honed tube

4,cylinder tube

5. seamless tube

6.Alloy tube

7. Precision tube

Which are widely used in hydraulic and pneumatic cylinder for automobile, engineering machinery, textile machinery, printing machinery and other field.

Product standard: EN10305 DIN2391 GB/T3639 and so on.

our processing

application

1.Hydraulic Cylinder Tube---Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT, ST52, CK45 and 1020. We can work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.

2.SRB tube ----- Used in Elevator,buffer and Hydraulic Cylinder .This kind tube have a better roughness inner the tube, ra0.2-0.4um and can use directly in the hydraulic cylinder tube.

Range: ID 50-250mm and Length can work at most 6M.

3.Cold finished tube---- Widely Used. Processing range 30-300mm, biggest length is 11m

FAQ

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.samplesarefree,you onlypay for freight charge is ok.

5.What is your terms of deliveryand 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 yourdelivery time?

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

testing

1.portable hardness tester

2.wall thickness gauge

3.ultrasonic flaw detector

4.digital rockwall hardness tester

5.tensile testing machine

6.USA import UT test machine

Our Services

1.Short delivery time:
Within45 days below 100Metric Tonsafter sightof Irrevocable L/C or receipt Deposit.

2.Quality assurance:
Strictly according to Internationalstandard like ASTM API DIN JIS.

3.Competitive price:
Provide our best price to reach our cooperation

4.Superior Service:
We will try our best to satisfy your per request.

We prepare to provide the pre-sales serves, service during sales and afer-sales service for coustomes by the way ofadvance service, value added service and personalized service.
5.Our advantage:
1)professional & skilled & reliable
2)One step total solution
3)Ready stock goods with fast delivery
4)Customizable:Non-standard sizes are also available
5)small quantity is acceptable
6)refund or replacement for any product faulty