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Seamless Precision Chinese Steel Supplier 4140 Oil Drilling Pipe

FOB Price

US$ 800 - 1,000 / Metric Ton

5 Metric Tons(Min. Order)

Port qingdao yantai
Payment TermsT/T Credit Card

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Product Details

Place of Origin	Shandong, China
Thickness	2, 30	Application	Hydraulic Pipe
Technique	Cold Drawn
Alloy Or Not	Non-alloy
Secondary Or Not	Non-secondary
Section Shape	Round

Product Description

seamless precision Chinese steel supplier 4140 oil drilling pipe

grade and tolerance

Grade	OD	ID	Tolerance		WTD	Ovality	Curvature
Grade	OD	ID	OD	ID	WTD	Ovality	Curvature
20# 45# SKTM13C-T(25Mn) 27SiMn Q345D ST52 SAE1026	40-74	30-65	±.01	−0.3,−0.5	≤0.5	≤0.1	0.3
	74-98	65-85	±.01	−0.4,−0.6	≤0.5	≤0.15	0.3
	100-116	85-100	±.01	−0.4,−0.6	≤0.6	≤0.15	0.3
	124-134	110-115	±.02	−0.6,−0.8	≤0.6	≤0.20	0.3
	140-158	120-135	±.02	−0.7,−0.9	≤0.8	≤0.20	0.3
	165-176	140-150	±.02	−0.7,−0.9	≤0.8	≤0.20	0.3
	188-203	160-180	±.02	−0.7,−0.9	≤0.8	≤0.20	0.3

precision bright tube grde and chemical composition

chemical composition(%)
grade	C	Si	Mn	P	S
St35	≤0.18	0.17-0.37	0.35-0.65	0.035	0.035
St37.4(10#)	≤0.18	0.17-0.37	0.35-0.65	0.035	0.035
St45(20#)	≤0.25	0.17-0.37	0.50-0.80	0.035	0.035
St55(35#)	≤0.22	≤0.55	≤1.50	0.035	0.035
St52(16Mn)	≤0.20	≤0.55	≤1.50	0.035	0.035
CK45	0.42-0.50	0.17-0.37	0.50-0.80	0.035	0.035

we can provide such pipes:

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

Best quality cold rolled tube manufacturer, cold rolled pipe

Hydraulic cylinder tube is a kind of after cold rolling processing of a kind of high precision steel tube, full name cold rolled precision seamless steel tube. Precision seamless steel tube wall inside and outside the precision seamless steel pipe seamless steel pipe 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, such as a cylinder or cylinder, are made seamless tube. The chemical composition of precision seamless steel tube with carbon sulfur C, Si, Mn, S, P, Cr.

The difference between precision steel pipe and 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.

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

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.

4.Production Equipment

Xinpeng is equipped with JLB250T hydraulic cold drawn machine set LD120 cold rolled set. Powerful honing machine set, CNC skived and roller burnished machine set. OD polishing machine, lathe machine, and CNC sawing machines.

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

Tel +86-535-6835398

Website:

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Product Categories

API5CT API5L steel pipe	Cold Drawn Welded Tube/pipe (DOM)	Cold Rolled/Drawn Tube	Honed /SRB Tube for Cylinder
HOT DIP GALVANIZED STEEL PIPE	HOT SALE	Piston Rod	PRE GALVANIZED STEEL PIPE
ROUND/CIRCULAR WELDED STEEL PIPE	Seamless Steel PIpe	SPIRAL STEEL PIPE	SQUARE & RECTANGULAR STEEL PIPE
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Seamless Precision Chinese Steel Supplier 4140 Oil Drilling Pipe

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