Specifications

ASTM A106 A179 A333 a53 grb cold drawn seamless steel tube
1. Min Order : 20 tons
2.OD: 20mm --508mm
3. WT: 3mm -- 60mm

1. Min Order : 20 tons
2.OD: 20mm --508mm
3. WT: 3mm -- 60mm
4.Certification: ISO & API

 

ASTM A106 A179 A333 a53 grb cold drawn seamless steel tub

 

STM A106 seamless pipe/ms pipes  

 

Hot rolled seamless steel pipes

 

 1)  Standard: API Standard:ASTM A106.ASTM A53,ASTM A135,ASTM A179,ASTM A214,ASTM A192,ASTM  A226,ASTM A315,ASTM A178,ASTM A210,ASTM A333,ASTM A355,ASTM A369,ASTM A334 ASTM/ASME A312/SA312, ASTM/ASME A213/SA213, ASTM A269,ASTM 511,API5L,API5CT, GOST 9940,GOST 9941,JIS G 3459, JIS GS3463, GS3467, JIS G3448, DIN EN 10216-2006(DIN 17458) , DIN EN 10297-2006(DIN 17456) etc.

 

 2)  Steel Grade: ASTM A106 GRB,A53 GRB. API 5L GRB,API 5 CT N80,K55,A335 P11.P91,DIN ST52,ST44,ST35.8,ST37,ST42,ST45 

 

3)Outside Diameter:1/2"-20" Or 21.3-508mm

 

4)  Wall  Thickness:  3-40mm

 

5)  Application: The products are widely used in fertilizer, petroleum, central-station, boiler, power station, shipping military, chemical industry, environment protection, traffic, metallurgy and mine, printing and dyeing, food industry, medical equipment, and so on.  

 

Production Equipment :
30 sets of Cold-drawn Machinery (Model: 3 ton to 500 ton) 
Cold-rolled Machinery: Model LD-30, LD-60, LG-90H (L), LG-159H (L) 
Automatic Roller Solution & Annealing Heat Treatment Equipment 
18-meter-long Pickling Sin

 

 QUALITY ASSURANCE:

 

1)      Strictly acc. ASTM,DIN,JIS,EN,GOST etc

 

2)      Sample:  We are accept your sample requirement

 

3)       Test: Eddy current / hydrostatic/ Ultrasonic/ Intergranular Corrosion or according to customers' request

 

3)      Certificate:API, CE ,ISO9001.2000.MTC etc

 

4)      Inspection: BV,SGS,others is avaliable.

 

 High Quality Package :

 

 1) In bundle with strip; 

 

2) First packing by plastic bag then strip; Details packing please see the picture in the detial description. 

 

3) In bulk 

 

4) Client' requirements 

 

5) Delivery: 1) Container: 25 tons/container for pipe with usual outer diameter. For 20" container the max length is 5.8m; For 40" container the max length is 11.8m. 

 

                2) Bulk carrier: It is no requirements to the length of the pipe. But its booking space time is long.

 

 

steel carbon pipe seamless Description Details:
supplier	Yantai Xinpeng Steel Pipe Co,.Ltd.
Brand	Xinpeng
Type	Manufacturer & Exporter
Product	Carbon and Alloy Seamless Steel Pipe
Process	Seamless, Cold drawn and Hot rolled
Material	20#,  10#,  45#,  35#  and  Q235, Q345B, A53,A106,35CrMo,42CrMo,
	16Mn, 27SiMn, 40Cr, 12CrMo, 15CrMo, E235,1010,1045,4140,STPG370,ST37,ST45,ST52
Size	Outer Diameter			Wall Thickness				Length
	Inch	mm	SCH		mm		≥4m
	1/2--12	25 --325	40--XXS		4--70		unfixed		fixed
Standard	GB/T 8162-2008, material #10, #20, #45, 20Mn,25Mn,Q235,Q275, Q345, 30Cr, 40Cr,35CrMo, 42CrMo
	GB/T 8163-2008 mateiral #10, #20, Q345
	ASTM A53/A53M, material A53 GR.B
	API 5L, maerail A,B,X42,X46,X52,X56,X60
	API 5CT, material J55,N80,P110
	ASTM A519, material 1010,1045,4130,4140 etc
	ASTM A 179/A179M, material A179
	ASTM A 192/A192M, material A192
	DIN1629, material ST37.0,ST44.0,ST52.0
	DIN17175, material ST35.8,ST45.8 etc
	DIN2391, material ST35,ST45,ST52
	EN10305, materail E215,E235,E355
Other Requirements	Packing, Delivery ect.according to Customers requirements and Standards

 

 

2 .Hot rolled seamless tube Production process

 

Cold finished tube process

Step 1 PICKLING- PHOSPHATING- Saponification

Step 2 cold rolled/Drawn

Step3 Stress relieved/ Annealed /BKS

Step4 Straightening

Step5 straightness testing

Size and tolerance testing

Srb or honed 

testing /SGS

package

Introduction: 

hydraulic cylinder tube st52 din2391 is a kind of after cold rolling processing of a kind of high precison 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 layars, 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 obvioue 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.

 

Specifiation: 

Standard	DIN2391, DIN2445, EN10305, GB/T 3639, GB 8713
Grade	ST35(E235), ST37, ST24(E255), ST52(E355), 10#, 20#, 35#, 45#
O.D.	4.0MM-400MM
W.T.	0.5MM-18MM
Surface Treatment	bare, varnished,oiled, anti-corrosion coating as request
Packing	1. bundle packing 2. marking as per customer's requests 3. paint on the pipe as per customer request 4. pipe caps as customer request
Condirion of Delivery	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, threfore small steel pipe plasticly, the plasticly 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

hydraulic cylinder tube st52 din2391

Some Demension:

OD x WT	OD x WT	OD x WT	OD x WT
4*0.5	16*0.5	26*1.8	35*9.0
4*0.8	16*0.8	26*2.0	35*10
4*1.0	16*1.0	26*2.2	38*0.5
4*1.2	16*1.2	26*2.5	38*0.8
5*0.5	16*1.5	26*2.8	38*1.0
5*0.8	16*1.8	26*3.0	38*1.2
48*5.0	70*2.8	90*10	130*14
48*5.5	70*3.0	90*12	130*16
48*6.0	70*3.5	90*14	130*18
48*7.0	70*4.0	90*16	140*2.5
48*8.0	70*4.5	95*2.0	140*2.8
48*9.0	70*5.0	95*2.2	140*3.0

Tolerance in Dimension:

OD	GB/T3639(GB8713)	DIN2391(EN10305)	Our Tolerence	Best Quality
4-30mm	±0.10mm	±0.08mm	±0.05mm	±0.02mm
31-40mm	±0.15mm	±0.15mm	±0.05mm	±0.03mm
41-50mm	±0.20mm	±0.20mm	±0.05mm	±0.03mm
51-60mm	±0.25mm	±0.25mm	±0.08mm	±0.03mm
61-70mm	±0.30mm	±0.30mm	±0.10mm	±0.05mm
71-160mm	±0.30mm	±0.30mm	±0.10mm	±0.05mm
Tolerance in WT	±0.12mm	±0.10mm	±0.05mm	±0.03mm
Process	Diameter	Length	Precision	Inner Hole Roughness
Cold Rolled	30-100mm	≤12 m	H8-H10	0.4-1.6
Cold Draw	30-250mm	≤12 m	H8-H10	0.8-1.6
Honing	40-500mm	≤12 m	H8-H9	0.4-0.8
Rolling	40-400mm	≤7 m	H8	0.4
Inner Diameter	H8	H9	H10
30mm	±0.033	±0.052	±0.084	5-30mm
30-50mm	±0.039	±0.062	±0.100	±0.080
50-80mm	±0.046	±0.074	±0.120
80-120mm	±0.054	±0.087	±0.140
120-180mm	±0.063	±0.100	±0.160
180-250mm	±0.072	±0.115	±0.185
250-315mm	±0.081	±0.130	±0.210
315-400mm	±0.089	±0.140	±0.230

hydraulic cylinder tube st52 din2391

Mechanical Properties: 

Condition	Materail Grade	T.S (MPa)	Y.S (MPa)	Elongation(%)
BKS	ST35 (10#)	≥420	≥315	≥14
BKS	ST45(20#)	≥520	≥375	≥12
BKS	ST52(16Mn)	≥580	≥420	≥10
GBK	ST35 (10#)	≥315		≥35
GBK	ST45(20#)	≥390		≥32
GBK	ST52(16Mn)	≥490		≥30
NBK	ST35 (10#)	340-470	≥235	≥32
NBK	ST45(20#)	440-570	≥255	≥30
NBK	ST52(16Mn)	490-630	≥335	≥28

Application:

hydraulic cylinder tube st52 din2391 widely used in hydraulic system with precision steel tube, injection molding machine with precision steel tube, hydraulic press with precision steel tube, shipbuilding with steel tube, EVA foaming, hydraulic machinery, hydraulic cutting machine, shoe making machinery, hydraulic equipment, high pressure tubing, hydraulic tubing, card sets of joints, pipe joints, rubber machinery, forging machinery, casting machinery, engineering machinery, automotive high pressure steel pipe concrete pump, sanitation vehicle, automobile industry, shipbuilding industry, metal processing, military industry, diesel engine, the internal combustion engine, air compressor, construction machinery, forestrymachinery, etc.

 

 

 

About our service:

1. Cargo track service during transporting and feedback service after cargo is loaded on board

2. Flexible terms of payment by

3. Big discount for repeat customers

4. Smooth delivering procedure

5. Payment Terms: T/T , L/C And so on.

If there is any Question, please feel free to send us inquiry.

We will provide the professional Explanation.

We always do our Best!

 

 

Why you choose us as your best choice?

 

• Our quality is the top five in China. Raw material is mainly from some famous refinery steel mills, such as BAO STEEL, Tianjin, and Chengdu etc, which are the best and largest raw material manufacturers in China.
• we have been through ISO9001:2008 international quality system certification.
• Warranty period for our honed tubes and chrome bars is 2 years. For some special or important customers, the period is 5 years.
• All the orders, records of production and inspection would be kept for 5 years
• High Precision:

 

Honed tube (Roughness of tube is 0.2μm and straightness is less than 0.15/1000), piston rod (Plating thickness is 10-100 micron. Surface roughness is 0.2μm and straightness is also less than 0.15/1000)

 

Product details are completely according to International Standard, chrome rod and honed tube must be cut flatly, and no chrome marks on the surface of rod. (Most of domestic mills don’t do this in order to reduce cost)

• Delivery time is very fast. The average delivery time is 5-30 days after confirming the orders.
• Package:banding with steel strips, braiding parcel at outside
• Conservation: Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends.