seamless steel pipe

seamless steel pipe


Negotiable Min Order Quantity Unit

Required Quantity
Place of Origin
China
Payment Terms
L/C,T/T
Production method
Negotiable
Shipping / Lead Time
Negotiable / Negotiable
Keyword
seamless steel pipe, 1mm thick stainless steel plate, 1.5mm thick stainless steel plate, super duplex stainless steel plate price per kg
Category
Construction Material Stocks

Zhongjian Santai (Beijing) International Trading Co., Ltd

Membership
BIZ
Country / Year Established
China China / 2008
Business type
Trading Company
Verified Certificate

9

Product name seamless steel pipe Certification -
Category Construction Material Stocks Ingredients -
Keyword seamless steel pipe , 1mm thick stainless steel plate , 1.5mm thick stainless steel plate , super duplex stainless steel plate price per kg Unit Size -
Brand name - Unit Weigh -
origin China Stock -
Supply type - HS code -

Product Information

1 Definition:

seamless steel pipes have hollow sections, and are applied to pipes for conveying fluids in quantity, such as pipes for conveying petroleum, natural gas, coal gas, water and some solid materials. Compared with round steel and other solid steel materials, steel pipes have lighter weight at the same bending and twisting strength, belong to economic section steel materials, and are widely used for manufacturing structural parts and mechanical parts, for example, annular parts of oil drill rods, automobile transmission shafts, bicycle frames, steel scaffoldings used in building construction and so on are manufactured by steel pipes, which can improve the material utilizing rate, simplify manufacturing processes and save materials and processing time, and have been widely manufactured by steel pipes.

2 Types:

a. Seamless pipe (GB8162-87) for general structure and mechanical structure

b. Seamless pipe (GB/T3087-1999) for low and medium-pressure boiler

c. Seamless pipe ST45.8/111 (GB5310-95) for high-pressure boiler

d. Seamless pipe (GB/T8163-1999) for conveying fluids

e. Cold-drawn or cold-rolled precision seamless pipe (GB3639-83)

f. Geological drilling steel pipe (YB235-70)

g. Oil drilling steel pipe (YB528-65)

h. Seamless pipe (27SiMn) for hydraulic support

i. Seamless pipe (GB6479-86) for chemical fertilizer

j. Shipbuilding pipe (GB5312-85)

k. Oil cracking pipe (GB9948-88)

l. Various alloy pipes (16Mn, 27SiMn, 15CrMo, 35CrMo, 40CrMo, 12Cr1Mov)

3 Production processes:

a. Main production processes (△main inspection processes) of hot-rolled seamless steel pipes:

Pipe blank preparation and inspection △→pipe blank heating →perforation →pipe rolling →steel pipe reheating →sizing (reducing) →heat treatment △→finished pipe straightening →finishing →inspection △→(lossless, physicochemical, platform frame inspection) →warehousing

b. Main production processes of hot-rolled (drawn) seamless steel pipes:

Blank preparation →acid pickling and lubrication →cold rolling (drawing) →heat treatment →straightening →finishing →inspection

4 Standard /Steel Grade:

API 5L PSL1 PSL2 GR.B,X42,X46,X52,X56,X60,X65,X70,X80

API 5CT J55,K55,ASTM A106/ A53/A500 GR.B

ASTM A252 GR.2,GR.3, AWWAC200,

EN10224 L235,L275,L355, EN10025, EN10217, EN10219,

S235JR/JO/J2,S275JR/JO/J2,S355JR/JO/J2/K2

GB/T8162-2008,GB/T8163-2008,GB/T3087-2008,GB/T5310-2008

GB/T6479-2002,20#,45#,20G,20R,Q345B etc.

5 Length:6-12M

6 Packing:

1)In bundle with strip;

2)First packing by plastic bag then strip;

3)In bulk

4)Client' requirements

7 Delivery:

1)Delivery: 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.

8 Applications:

1. Architecture: more applications in underground pipeline transportation, groundwater withdrawal during building construction, hot water transmission of boilers, etc.

2. Machining, bearing sleeves, machining of machine parts, etc.

3. Electric: gas transmission and water electricity generation fluid pipelines

4. Antistatic pipes in wind power plants, etc.

9 Produce process

10 The chemical composition and mechanical properties

Chemical composition of seamless steel tubes

grade

C

Si

Mn

P

S

Cu

Ni

Cr

Mo

V

20#

0.17-0.24

0.17-0.37

0.35-0.65

0.035

0.035

0.25

0.25

0.25

/

/

Q345B

≤0.20

≤0.55

1.00-1.70

≤0.040

≤0.040

0.25

0.25

0.25

/

/

HRB335

≤0.25

≤0.80

≤1.60

≤0.045

≤0.045

0.25

0.25

0.25

/

/

 

Mechanical Properties

grade

Tensile strength, min, (MPa)

Yield strength, min, (MPa)

Elongation, min, (%), L/T

≤16mm

>16-35mm

20#

≥390MPa

≥20%

≥245MPa.

345B

470-630

≥345

≥325

≥21

HRB335

≥490

≥335

≥16

 

Product Name

Seamless Steel Pipe

Outer Diameter

21.3mm-610mm  1/2”-24”

Wall Thickness

3mm ~ 60mm; SCH10~SCH160

Length

3~12m etc.

Standard /
Steel Grade

API 5L PSL1 PSL2 GR.B,X42,X46,X52,X56,X60,X65,X70,X80
API 5CT J55,K55,ASTM A106/ A53/A500 GR.B 
ASTM A252 GR.2,GR.3, AWWAC200,
EN10224 L235,L275,L355, EN10025, EN10217, EN10219,
S235JR/JO/J2,S275JR/JO/J2,S355JR/JO/J2/K2
GB/T8162-2008,GB/T8163-2008,GB/T3087-2008,GB/T5310-2008
GB/T6479-2002,20#,45#,20G,20R,Q345B etc.

MOQ

20TONS

High quality package

In bundle with strip;
First packing by plastic bag then strip; 
Details packing please see the picture in the detial description.
In bulk
Client' requirements

Marks

As per customers’ requirement

Delivery time

Within 30days after receiving the deposit or the L/C at sight

Delivery

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

Payment

30% TT in advance and the balance against 
the copy of B/L or irrevocable L/C at sight

Application

For conveying petroleum, natural gas, hot steam and used as boiler pipes, 
petroleum cracking pipes, chemical 
fertilizer making equipments/conveying pipes etc.

 

B2B Trade

Price (FOB) Negotiable transportation -
MOQ Negotiable Leadtime Negotiable
Payment Options L/C,T/T Shipping time Negotiable

Zhongjian Santai (Beijing) International Trading Co., Ltd

Country / Year Established
China China / 2008
Membership
BIZ
Business type
Trading Company

9

President
Jessie Yang
Address
Room 604, Building 3, Lecheng Business Plaza, No.260, Huai’ an Road
Product Category
Steel Sheets
Year Established
2008
No. of Total Employees
1-50
Company introduction

 

Founded in 2008, Zhongjian Santai (Beijing) International Trading Co., Ltd., as one of large steel operating enterprises in Eastern China, is headquartered in Changping District, Beijing (Capital). Through hard work of the founder and team, our company has developed markets in Northeast China, Northwest China, North China, Central China, South China and other regions, and constructed a stable marketing system. In addition, we set up an office in Shijiazhuang in 2014.
Our company has sufficient supplies and complete specifications, and is mainly engaged in wires,steel rebar( threaded steel), steel angle bar,U channel, H beam,I beam, seamless steel pipe(tube), welded steel pipe(tube),galvanized steel pipe(tube),stainless steel pipe(tube),cold rolled coil/sheet,hot rolled coil/sheet,stainless steel coil/sheet, galvanized steel coil/sheet. Meanwhile, we have kept a long-term stable good partnership with Shougang, Tangshansteel, Handan Steel, Chengde Iron & Steel Group, Xuanhua Steel and other large well-known steel plants, with the storage capacity of over 10,000 tons.
Our company constantly adjusts and optimizes operating varieties and strengthens marketing and market expansion through market change and features in different periods. By virtue of superior commodity supplies, advanced management modes, sensitive market information and all-around service modes, we have had a large batch of high-quality stable upstream and downstream customers and won the support and trust of customers in the development of the steel trade industry, thus obtaining considerable development.

 

Main Markets

U.S.A U.S.A

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