E235 E355 Precision Seamless Steel Honed Tube for Hydraulic Cylinder

• Type: Seamless
• Technique: Cold Drawn
• Material: Alloy Steel
• Surface Treatment: Galvanized
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Model NO.: BKS-P
• Surface: Galvanized or Not
• Pipe Ends: Plain Ends
• Coupling: with Coupling or Socket
• Length: 1m~12m
• Production Standard: En10305 En10305-4 En10305-1
• Material Grade: E195, E235, E355, C35e, C45e, 25crmo4, 42CrMo4
• Product Name: Sch40 Sch60 Sch80 Sch120 Carbon Iron Steel Seamle
• Transport Package: Wrapped by Steel Strips in Bundles
• Specification: OD: 10mm~89mm
• Trademark: Boerking
• Origin: Tianjin, China
• HS Code: 730419
• Production Capacity: 10000ton/Year

Product Description

1.Product Description

 EN10305-4 hydraulic seamless steel tube inside and outside the wall without oxidation layer, under high pressure, no leakage, high precision, high finish, cold bending deformation, flaring, flattening without cracks, surface antirust processing, widely used in the hydraulic system in steel tube, and injection molding machine with a steel tube, hydraulic press with steel, ship system with steel tube, EVA foam hydraulic machinery, precision hydraulic steel pipe 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.

Chemical Composition and Mechanical Performance:

Table 1- Chemical composition
Steel Grade	C%	Si%	Mn%	P%	S%	AL%
E215	≤0.10	≤0.05	≤0.7	≤0.025	≤0.025	≥0.025
E235	≤0.17	≤0.35	0.4-1.2	≤0.025	≤0.025
E255	≤0.21	≤0.35	0.4-1.1	≤0.025	≤0.025
E355	≤0.22	≤0.55	≤1.6	≤0.025	≤0.025

 

Table 2 - Mechanical properties at room temperature
Delivery Condition	BK		BKW		GBK		NBK (N)
Steel Grade	Rm	A %	Rm	A %	Rm	A %	Rm	ReH	A %
	Mpa (Min)	(Min)	Mpa(Min)	(Min)	Mpa(Min)	(Min)	Mpa(Min)	Mpa(Min)	(Min)
E215	430	8	380	12	280	30	290~430	215	30
E235	480	6	420	10	315	25	340~480	235	25
E255	580	5	520	8	390	21	440~570	255	21
E355	640	4	580	7	450	22	490~630	355	22

  

Other Specification:

End Shape	Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per customer's  requirements
Surface  Treatment	Oiled, Galvanized, Phosphate etc
Technique	Cold drawn & cold rolled
Application	1. Automotive and mechanical pipes
	2. Petroleum cracking pipes
	3. High Pressure Boiler Pipe
	4. Low and middle pressure fluid transportation pipeline
	5. Chemical fertilizer equipment pipes
	6. Heat exchanger pipes
Delivery  Conditions	1. BK (+C)	No heat treatment after last cold forming process.
	2. BKW (+LC)	After last heat treatment there is a light finishing pass (cold drawing)
	3. BKS (+SR)	After the final cold forming process the tubes are stress relieve annealed.
	4. GBK (+A)	After the final cold forming process the tubes are annealed in a controlled atmosphere.
	5. NBK (+N)	After the final cold forming process the tubes are annealed above the upper transformation  point in a controlled atmosphere.
Package	1. Bundle Packing.
	2. Plain end or vanished as per customer's request.
	3. Wrapped in waterproof paper.
	4. Sackcloth with several steel strips.
	5. Pack in heavy tri-wall boxes.

  Carbon steel precision st45 cold drawn seamless steel pipe&tube

2.Specifiation: 

Standard	Carbon steel precision st45 cold drawn seamless steel pipe&tube
Grade	ST35(E235), ST37, ST24(E255), ST52(E355), 10#, 20#, 35#, 45#
O.D.	30MM-400MM
W.T.	2-30mm
Surface Treatment	Polished , cold drawn , cold rolled, honed, anneal, Srb , od polished
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

Standard specifications and steel grades of precision tubes can be DIN 2391-2 ST35,ST45,ST52, EN 10305-1 E195,E235,E355,C35E,C45E,25CrMo4,42CrMo4.  

3.Product Show

 

4.Production Line

 N10305-4 hydraulic seamless steel tube adopts high-precision and bright seamless steel tube to electrogalvanize the steel tube, plating yellow zinc (color zinc) on the inner and outer wall of the steel tube, white zinc, passivation treatment, the length of galvanized steel tube can be within 6 meters. Mainly used for automotive, military, aircraft, agricultural and forestry machinery, engineering machinery, railway vehicles and other industries hydraulic steel pipe; Clamp sleeve (steel tube) joint; DIN2391 steel pipe; Marine steel tubes (CCS steel tubes); Galvanized steel pipe; Black phosphating steel tube; High pressure tubing; Hydraulic system steel pipe; Bentler steel tube; Color (yellow white) zinc steel tube; Injection molding machine steel pipe; Die casting machine steel tube; Hydraulic steel pipe; Steel tubes for ships; Precision seamless steel tube; Steel tubes for mechanical pavement construction; Precision cold-drawn seamless steel tube; High pressure steel pipe (oil pressure steel pipe); Precision hydraulic seamless steel tube; Automobile hydraulic steel pipe, hydraulic steel pipe, precision seamless steel pipe, Marine, automobile, DIN2391, EN10305, ST37.5, ST35, NBK, GBK,BKS,BK, hydraulic steel pipe; Clamp sleeve (steel tube) joint; DIN2391 steel pipe; Precision steel tube; Galvanized steel pipe; Phosphating steel pipe, Specifications are 4*1.0, 6*1.0, 6*1.5, 6*2.0, 8*1.5, 8*2.0, 10*1.0, 12*1.0, 12*1.5, 12*2.0, 12*2.5, 12*2.5, 14*1.5, 15*1.5, 15*2.0, 15*2.5, 16*3.0, 18*1.5, 18*2.0, 18*2.5, 18*3.0, 20*2.0, 20*2.5, 20*3.0, 22*2.0, 22*2.5, 22*3.0, 22*4.0, 22*4.0, 25*2.0, 25*2.5, 25*3.0, 25*4.0, 28*2.0, 28*2.5, 28*3.0, 28*4.0, 30*2.5, 30*3.0, 30*4.0, 30*4.0, 32*2.5, 32*3.0, 32*4.0, 32*4.0, 34*3.0, 34*4.0, 38* 2.0, 42*3.0, 42*4.0, 42*4.0, 42*2.0, 42*3.0, 42*4.0, 42*4.0, 42*5 0, 48*4.0, 48*5.0, 50*5.0, 60*4.0, 60*5.0, 60*6.0, etc.

5.Quality Control

 

 

6.Packing and Shipping

For 1/2" to 8" seamless steel tube, packaging always be in bundles with steel strip, 9'' and upper size will be in loose. 

Coating type: bare, varnish painting(anti-rusted painting), hot dipped galvanized, 3LPE, 3PP End protect: plastic ends cap, end protector. 

Packing: Bundled or each piece with knitted plastic bag, wooden cases or Ply-wooden Case.

 

Tiajin Boerking Steel Pipe Co., Ltd is one of companies specializing in producing and exporting

steel pipes and pipe fittings in China.

Our main products are API 5L GR.B,X42,X52,X60,X70,X80 PSL1/PSL2 Seamless Pipe, ASTM A106/SA106 Seamless Pipe, ASTM A53 Seamless Pipe, A335/SA179/SA192/A333 Seamless Pipe, and AISI1020 AISI1045 Seamless Pipe and API 5CT oil and casing steel pipes.

Our company's featured products are customized diameter steel pipe(such as 318mm,216mm,

 254mm...),cold drawn steel pipe made to order, hot expanding steel pipe, 609.6mm~1020mm

 SEAMLESS steel pipe, hollow section with customized size.

 

 

 The annual yearly output is about 30,000 tons which is exported to all over the world, such as Korea, Malaysia, Singapore, Vietnam, Philippines, Thailand, Myanmar,HongKong, Taiwan, India, Pakistan, Bangladesh, Iran, Egypt, Australia, United Kingdom, Serbia, Guatemala, Argentina and so on. Tianjin Boerking Steel Pipe Co., Ltd believes in honesty,mutual respect and development, consistantly high quality and we continue to seek improvements by listening to our clients and giving due attention to their specifications and suggestions. Looking forward to your enquiry!

 

 

FAQ

Q: What about your payment term?

A: Usually T/T or L/C, 30% deposit and 70% before delivery.

Q: what about your standard delivery date

A: 15~25 days after receiving deposit 

Q: How about your capacity?

A: For steel pipes, 60,000 tons per month, 720,000 tons per year.  For pipe fittings, 30,000 tons per year

Q: what about your package

A: Usually as per customer's requests.

Common packing information: Small size in bundles, big size in bulk, some sizes with plastic cap to protect both ends, seaworthy packaging. 

Q: What is your main market &main customers

A: We have 15years experience on steel pipes & pipe fittings.  Our main market includes China, Singapore etc.  Main Customers including HYST, Keppel group etc.

Q: If products have some quality problem,how would you deal with?

A: We will responsible for all of our quality problems.

Q: How to get accurate price / quotation from you?

A: Please kindly tell us below details and we'll send our quotation to you ASAP:

1) Pipe's outer diameter             2) Wall thickness                            3) Section Shape (round, square etc.)

4) length for each pipe               5) steel grade                                  6) Standard (e.g.: API 5L)

7) order quantity                          8) Designation (BK, BKW etc.)     9) Trade Terms

P.S.: more detailed information you clarified, more exact price we provided.

Contact:

If you have any question, please feel free to contact me by the email or telephone!

 

 

  MS.Cindy Yang [phone]

 Tianjin Boerking Steel Pipe Co.,ltd