Stainless Steel Welded Pipes

Stainless Steel Welded Pipes

Description

Stainless steel welded pipes are widely used in industrial piping systems, petrochemical plants, offshore projects and engineering applications where corrosion resistance, weldability and dimensional accuracy are required. Welded pipes are commonly manufactured from austenitic stainless steel, duplex stainless steel and nickel alloys for various industrial applications.

As an Alloy materials supplier, we supply austenitic stainless steel welded pipes, duplex and super duplex welded pipes, as well as Inconel welded pipes for engineering and industrial projects requiring reliable piping materials and project supply support.

Typical austenitic stainless steel grades include TP304, TP304L, TP316, TP316L, TP321, TP321H, TP347 and TP347H. Duplex and super duplex welded pipes are commonly supplied in S31803, S32205, S32750 and S32760 grades. Nickel alloy welded pipes include Inconel 600, Inconel 601 and Inconel 625 grades.

Specifications / Standards

Stainless steel welded pipes can be supplied according to international standards and project specifications.

Pipe Standards:

ASTM A312 / ASME SA312
ASTM A358 / ASME SA358
ASTM A409 / ASME SA409
ASTM A790 / ASME SA790
ASTM A928 / ASME SA928
ASTM B619 / B626 / B705 / B725
ASTM A999 – General Requirements
EN standards where applicable
NACE MR0175 / ISO 15156 where required
Project specifications and customer drawings

Dimensions:

ASME B36.19M
ASME B36.10M
EN 10220
EN 10217
EN 10296

Plate Standards for Welded Pipe:

ASTM A240
ASTM A480
ASTM B168
ASTM B575

Corrosion / NACE Standards:

NACE MR0175 / ISO 15156
NACE MR0103

Inspection & Certification:

EN 10204 3.1 / 3.2
PED 2014/68/EU
AD2000 W0
ISO 9001

Welding & Testing Standards:

ASME Section IX
ASME Section V
ASME B31.3
ASTM A370
ASTM E165 / E709 / E213 / E446

Materials can be supplied with EN 10204 Type 3.1 or 3.2 certification.

Material Grades

Typical welded pipe material grades include:

Austenitic Stainless Steel:

TP304 / TP304L
TP316 / TP316L
TP321 / TP321H
TP347 / TP347H

Duplex / Super Duplex Stainless Steel:

UNS S31803
UNS S32205
UNS S32750
UNS S32760

Nickel Alloys (Inconel):

Inconel 600
Inconel 601
Inconel 625

These materials are selected based on corrosion resistance, temperature resistance and project specifications.

Size Range

Stainless steel welded pipes can be supplied in various sizes including:

Outside diameter from 1/2” to 72”
Wall thickness according to ASME B36.19 / B36.10
Single welded and double welded pipes
Random length or fixed length
Cut-to-length and machining available

Supply dimensions can be adjusted according to project requirements.

Manufacturing Process

Manufacturing processes may include:

Plate forming
Welding (ERW, EFW, SAW)
Heat treatment
Pickling and surface finishing
Straightening
Cutting and beveling
Marking and traceability identification

All welded pipes are manufactured according to applicable standards and project technical specifications.

Inspection & Testing

Inspection and testing may include:

PMI testing
Radiographic testing (RT)
Ultrasonic testing (UT)
Hydrostatic testing
Mechanical testing
Chemical composition analysis
Third-party inspection

All materials can be supplied with quality control and inspection documentation including EN10204 certification and inspection reports.

Applications / Industries

Stainless steel welded pipes are widely used as piping materials for industrial projects including:

Oil and gas projects
Petrochemical plants
Offshore platforms
Power plants
Industrial piping systems
Heat exchangers
Pressure equipment
Water treatment plants

Welded pipes are commonly used for large diameter piping, low pressure systems and structural piping applications.

Packaging & Delivery

Materials are packed to ensure protection during transportation and storage.

Typical packaging includes:

Bundles with steel straps
Wooden cases
Wooden pallets
Waterproof wrapping
End caps
Export seaworthy packing
Marking according to project requirements

Delivery can be arranged by container shipment or project cargo shipment.

Why Choose Us

We supply stainless steel welded pipes for engineering and industrial projects worldwide.

Our services include:

Material sourcing and supply
Project material supply coordination
Inspection and documentation support
Third-party inspection coordination
Supply for both small quantity and large project orders
Material traceability and documentation
Supply chain support for industrial projects

We support customers not only as a supplier, but as a supply chain partner supporting industrial projects from material sourcing to final delivery.