size 25-450 1-20mm round steel pipe welded steel pipe China professional steel pipe production company
size 25-450 1-20mm round steel pipe welded steel pipe China professional steel pipe production company
size 25-450 1-20mm round steel pipe welded steel pipe China professional steel pipe production company
size 25-450 1-20mm round steel pipe welded steel pipe China professional steel pipe production company
size 25-450 1-20mm round steel pipe welded steel pipe China professional steel pipe production company

size 25-450 1-20mm round steel pipe welded steel pipe China professional steel pipe production company

Negotiable /Ton

Min.Order:1 Ton

Supply Ability:
20000 Ton / Tons per Month
Port:
SHANGHAI,SHENZHEN,QINGDAO
Payment Terms:
T/T L/C
Delivery Detail:
7 days

Quick Details View All >

Place of Origin:
China
Certification:
Other, Mining,new energy,transport vehicle
Thickness:
1, 20
Application:
Other, square and rectangular
Surface Treatment:
Other, ISO9001,14001,45001,BV,CE
Technique:
Cold Drawn

Hunan Yige Special Steel Science Technology Co.,Ltd

Credit Member 3 years
Business license
Business Type: Manufacturer
Main Products: seamless steel pipe

Product Details

Product Introduction


Welded round steel pipe, as an important pipe, plays an irreplaceable role in modern industry and construction. Its high strength, corrosion resistance and plasticity make it the preferred material for many infrastructure and engineering projects, and it is widely used in oil pipelines, natural gas pipelines, building support structures, Bridges, guardrails and other aspects. The application prospect of welded square pipe is very broad, especially in the new energy, urbanization and transportation infrastructure construction, and its demand is growing.

 

Product Features



High performance:

yield s

trength 1000MPa ,length 16M,high strength,wear resistance, easy welding,impact resistance.

High precision:

OD,thickness,Rcorner,straightness,Perpendicularity can be controlled. Acid pickling,shot blasting, galvanization can provide.

Special:

Special material, special specification,special use,special requirement.

Special-shaped section:

According to the requirements of customers, we can produce all kinds of non-standard models with high speed and low cost.


Our Advantages


1. High speed production line:

our production line is almost fully automated it can improve our production speed mostly.


2. High precision:

The process adopts a combination of electric and manual adjustment roller technology, with high accuracy and stability.


3. Customization:

We support customer sample customization and free mold opening customization.


4. Quality assurance:

We cooperate with famous enterprises at home and abroad, and the product quality and company reputation are guaranteed.


5. Vary application field:

It can be used into different industry and shows excellent performance. Such as, Hoisting machinery, Aerial work machinery, Transport vehicle ,Engineering vehicle, Petrochemical machinery, Ship and marine engineering, New energy industry, Agricultural machinery, Steel structure machinery, Other mechanical equipment.


Quality Assurance



1. Brand steel mill raw material


2. Advanced welding equipment and technology to ensure the quality


3. On line deburring, flaw detection and Welding line heat treatment to ensure the performance.


4. Combine with cold drawing technology, optimize welding line quality, improve overall performance.


5. Mold is designed by Germany software COPRA to ensure the stability.



Product specifications



Product name

High Quality cold bending welded   rectangular steel pipe

Size

30*30-300*300 WT1.5-20(mm)

Length

1.5-16m or based on your request

Standard

GBT6718-2017

Materials

Q235B/C/D/E, Q345B/C/D/E,Q390B/C/D/E,   Q420C/D/E, Q550C/D/E, Q690C/D/E,370L/420L/440L/510L/550L/610L/700L/750L/800L   QSTE380700 series,S355-960MC series,Weathering steel and   other domestic and foreign types

Surface

anti rust oil

Technique

cold bending

Usage

Civil engineering, architecture,   steel towers, shipyard, scaffoldings, struts, mining machinery,agricultural   machinery,aerial work machinery,hosting machinery

Delivery time

Prompt delivery, or as order's   quantity.

Payment Terms

T/T or L/C or credit card

Packing

Export standard package, suit for   all kinds of transport, or as required.



Product conversion Parameters




Φ95*7 Superheavy precision round to   square welded pipe machine set


Dimension

Round

Square

Rectangular


Outer Diameter

Φ25-Φ95mm

20*20-75*75mm

30*15-100*50mm


Thickness

Low carbon steel& low alloy   steel

1.2-8mm

≤6.5mm


High strength steel

1.2-6.0mm

≤5.5mm


Productable material and thickness

Round

Square


low carbon steel Q235B

≤8.0mm

≤6.0mm


low alloy steel Q235B

≤7.0mm

≤5.5mm


high-strength steel QSTE500TM/Q500D

≤6.0mm

≤5.0mm


high-strength steel QSTE600TM/Q620D

≤5.5mm

≤4.5mm


high-strength steel QSTE700TM/Q690D

≤5.0mm

≤4.0mm


Φ194*15 Superheavy precision round   to square welded pipe machine set


Dimension

Round

Square

Rectangular


Outer Diameter

Φ60-Φ194mm

50*50-160*75160mm

80*40-200*100mm


Thickness

Low carbon steel& low alloy   steel

3.0-15mm

≤14.0mm


High strength steel

3.0-12.0mm

≤10.0mm


Productable material and thickness

Round

Square


low carbon steel Q235B

≤15.0mm

≤14.0mm


low alloy steel Q235B

≤13.0mm

≤12.5mm


high-strength steel QSTE500TM/Q500D

≤11.0mm

≤9.0mm


high-strength steel QSTE600TM/Q620D

≤10.0mm

≤8.0mm


high-strength steel QSTE700TM/Q690D

≤9.0mm

≤8.0mm


Length:4.0~12.0m, the actual   thickness can be over 0.5-1 mm according to the specifications, inquiry for   more details. Quality requirements: welding quality, outer diameter tolerance   size, surface quality meet the corresponding standard requirements, smooth   appearance. Outer diameter accuracy requirement:<0.10mm. roundness   tolerance:<0.08mm(except weld zone) Straightness:<1mm/m(Note:   GB/T13793) cold-cut welded pipe cutting length deviation accuracy: <2mm



The production process of welded steel pipe



Company Profile



Hunan Yige Special Steel Science Technology Co.,Ltd. was founded in 2015.It’s a high- tech enterprise specialized in the production, R&D and sales of the high-performance, high- precision, special-shaped seamless steel pipes and cold-bending welded pipes. we are already got ISO9001, ISO14001, ISO45001 , BV, CE and other system certifications. The company has 500T /300T /200 Hydraulic drawbench machines, 60T/30T chain drawbench machines, multifunctional heat treatment furnace, several sets of head making, straightening, sawing, surface treatment and machining equipment, and equipped with a full set of physical and chemical testing equipment. The annual output more than 50,000 tons.


Our products are characterized by "high, precision, special and different" (high strength, high precision, special materials and special-shaped section). It can meet the needs of customers in various industries for materials with high strength, high toughness, easy welding, impact resistance, fatigue resistance, wear resistance, corrosion resistance. Now, our factory products have been widely served high-end equipment manufacturing industries at home and abroad, such as aviation, military industry, engineering machinery, ship and marine engineering, traffic vehicles, construction machinery, steel structure building, petrochemical industry, agricultural machinery, textile machinery, Communication tower and other industries.


Certificate display





Packaging



Cooperative partners




Product applications



Agricultural machinery

Mining machinery

New energy industry



FAQ



Q1:How could you guarantee your products?

A1:Each piece of products is manufactured by certified workshops, inspected by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.


Q2: Can we visit your factory?

A2: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.


Q3:Are you a factory or trading company?

A3: We are manufacturers and also do export trade.


Q4:Can I get some samples? 

A4:Yes,We are pleased to provide you with samples of our products.






Contact Supplier

Ms. Melody sales manager Chat Now
Mobile
86-15073340950
Whatsapp
86 15073340950

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