Product Details

Product Description

ASTM A106 GR B API 5L SCH40 carbon steel seamless 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

product specification

Commodity
Size	OD:20mm-300mm WT:2mm-30mm
honed tube ID tolerance	H8,H9
honed tube or SRB Surface roughness	Ra 0.02— 0.4μm
Length	According to the request of the clients
Grade	20#(aisi1020,ck20),45#(aisi1045,ck45),st52(16Mn,Q345D), 25Mn(stkm13c-t), 27SiMn, SAE1026,E355
Standard	GB/T8713,GB/T3639,DIN2391 EN10305,ASTMA519
Delivery condition	BK,BKW,GBK,NBK,BKS
Place of Origin	Yantai,China
MOQ	5MT
Package	standard packing with plastic caps and strapped bundles or wooden box or as requests of the clients
Payment	L/C or T/T (30% in advance and 70& against copy of B/L)
Technique	Cold drawing, cold rolling, hot rolling or hot expanding,honed,srb
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.

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

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

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

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.High Efficiency