Thick wall square rectangular carbon steel pipe
Welded steel pipe, also known as welded pipe, is a steel pipe made of steel plate or strip steel after crimping and welding, generally 6 meters. Welded steel pipe production process is simple, high production efficiency, variety specifications, less equipment investment, but the general strength is lower than seamless steel pipe.

Product details

Product information:

Product Name

Thick wall square rectangular carbon steel pipe

Standard

A53 A106 A333 A335 A336 A179 S235 S355 SA179 SA192 SA210 SA179 Q235G3457 STPG38 G3456 G3455 1.0309  G3461 G3461 G3461 STPG42 St42-2 St12 St37 G3456 G3461 G3455,etc.

Outer Diameter

Seamless: 1/4"-36"

Welding: 21.3mm-3620mm

Round Tube: 1/2"-10"

Square Tube/Rectangular Tube: 15x15mm-400x600mm

Wall Thickness

Seamless: 1.25mm-50mm

Welding: 1.65mm-65mm

Length

3-12 meters, Support customization

Surface Process

Bright, Polished, Black

Certificate

CE, tisi, KS, JIS, GS, ISO9001

Delivery Time

within 7 days

Other Services

Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.


lassfication

Standard

Main Products

Steel Pipe for Fluid Service

GB/T 14291

Welded pipe for mine fluid sevice

GB/T 3091

Welded pipe for low pressure fluid service

SY/T 5037

Spirally submerged arc welded steel pipe for pipelines for low pressure fluid service

ASTM A53

Black and hot-hipped galvanized welded and seamless steel pipe

BS EN10217-2

Welded steel tybes for pressure purposes - delivery technical conditions - part2: Electric welded non- alloy and alloy steel tubes with specified elevated temperature properties

BS EN10217-5

Welded steel tybes for pressure purposes - delivery technical conditions - part5: submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties

Steel Pipe for Ordinary Structure

GB/T 13793

Longitudinally electric resistance welded steel pipe

SY/T 5040

Spirally submerged arc welded steel pipe piles

ASTM A252

Welded and seamless steel pipe piles

BS EN10219-1

Cold formed welded structural hollow sections of non-alloy and fine grain steels - part1: Technical delivert conditions

BS EN10219-2

Cold formed welded structural hollow sections of non-alloy and fine grain steels - part2: tolerances dimmsions and sectional properties

Line Pipe

GB/T 9711.1

Steel pipe for pipeline transportation system of petroleum and natural gas industries(Class A steel pipe)

GB/T 9711.2

Steel pipe for pipeline transportation system of petroleum and natural gas industries(Class B steel pipe)

API 5L PSL1/2

Line pipe

Casing

API 5CT/ ISO 11960 PSL1

Steel pipe for use as casing or tubing for wells of petroleum and natural gas industries


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Surface classification

Common grade Surface (FA)

The surface of the pickling surface is allowed to have a depth (or height) not more than half of the thickness tolerance of the steel plate pitting, concave, scratches and other minor, local defects, but should ensure that the minimum allowable thickness of the steel plate and steel strip.

Higher Surface (FB)

The pickling surface is allowed to have local defects that do not affect the formability, such as slight scratches, slight indentation, slight pitting, slight roll marks and color difference.

WORKSHOP EQUIPMENT

The company mainly produces hot rolled steel plate, cold rolled steel plate, carbon steel coil, carbon steel pipe, API pipe, structural steel, steel bar and other products. The company has obtained ISO9001 quality system certification and European CE certification, and provides MTC quality certification according to EN10204.3.1

Companies adhering to the "integrity, quality, win-win" spirit of enterprise, in the years of pioneering and enterprising, never forget the original aspiration, accumulated strength, with wisdom and sweat to lead the development of iron and steel industry.

The annual production capacity of cold rolled steel plate production line is 600,000 tons, and the production specification is 0.12-1.2mm*750-1250mm. The production line adopts advanced full hydraulic on the road, flexible and stable control, combined with thickness gauge to achieve automatic control of AGC plate thickness, so as to ensure product quality.

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