Product Details

Product Description

AISI 4130 4140 Bks cold drawn seamless steel tube

Cylinder using Cold drawn aisi 4130 steel pipe

precision steel tube technique and tolerance

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

Dimension

The difference between honed pipe and seamless steel pipe

1, the main feature of seamless steel pipe is welded joints, can withstand greater pressure. The product can be very rough as cast or cold parts.

2,honed tube is the product in recent years, mainly the hole, the outer wall size has strict tolerances and roughness.

Delivery Condition

1. BK(+C)

the final heat treatment after cold forming, threfore small steel pipe plasticly, the plasticly degree does not guarantee

2. 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

3. NBK(+N)

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

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. GBK(+A)

after cold forming, annealing in non oxidizing medium protective gas

Packaging & Shipping

packaging details:

1.bundle with steel strips

2.brand parcel

3.wooden box

4.as clinets request

delivery details: 15days after payment

Company Information

precision pipe hydraulic cylinder honed pipe and tube

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 manufacture 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.

1. Hydraulic Cylinder Tube------Main products of Xinpeng,

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.

Xinpeng Have passed ISo9001 verified from 2015; each tube of ours is strictly in quality control that can assure the product quality of Xinpeng.

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.What is your main market?

Middle East, South Korea, Africa,Asia,Iran,Europe, etc.

2. Are you factory?

Yeah, we are.

3. How do I get a sample to check your quality?

After price confirmation we can offer samples to you , but customers should bear the samples charge,after samples passed,we will deduct the sample charges from total amount.

4. What is your term of delivery?

We accept EXW, FOB, CIF, T/T etc. You can choose the one which is the favorite or cost effective.

5. What is the delivery time?

If we have the raw material, we can send goods about 20 days. If not, we will about 30 days for delivery.

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

Tel +86-535-6835398

Website: