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Features

Specifications

Surface Finish: Mill Finish, 2B, Brushed, Polished Or Customized

Material: SS 201, SS 304, SS 304L, SS 316, SS 316L

Wall Thickness: 1.0–5.0mm Or Customized

Dimensional Tolerance: According To ASTM A554 Or Confirmed Drawing

Length: 5.85m, 6m, 6.1m, 7m Or Cut To Length

Welding Type: Longitudinal Welded, TIG Or ERW

Tube Size: 150mm × 300mm

Material Grade: SS201, SS304, SS304L, SS316, SS316L

Nominal Outside Profile: 150 × 300mm

Construction: Welded And Formed From Stainless Steel Strip Or Sheet

Corner Profile: Formed Radius; Final Radius Depends On Tooling, Grade And Wall Thickness

Production Standard: ASTM A554 Or According To The Confirmed Drawing And Purchase Specification

Highlight:

Stainless steel rectangular tube 150mmx300mm

Corrosion resistant welded metal pipe 304 grade

Large size inox pipe 316 grade

Basic Infomation

Place of Origin: Foshan, China

Brand Name: VVINSCO/Winsco Metal

Certification: ISO,SGS,TUV,MTC,Third Party From Customers

Model Number: Seaworthy export packing specially designed for stainless steel stair & railing accessories. 1. Individual EPE foam bag for every polished/mirror/600G/PVD fitting to protect surface against scratches. 2. Parts separated by foam padding to prevent collisio

Document: Winsco Metal stainless stee...ue.pdf

Payment & Shipping Terms

Packaging Details: Stainless Steel Sheet: Separated by protective paper, covered with PVC film; packed on waterproof wooden pallets with steel strapping

Delivery Time: 7–25 Days, Subject to Order Requirements

Payment Terms: L/C, T/T

Supply Ability: 3,000 -5,000Metric Tons per Month

Gallery

150x300mm Large Size Welded Stainless Steel Rectangular Tube SS201 SS304 SS316 for Construction and Fabrication

Product Description

VVINSCO

AT YOUR SIDE · STAINLESS STEEL TUBE MANUFACTURER

LARGE-SIZE WELDED RECTANGULAR TUBE

150×300mm Stainless Steel Rectangular Tube

Name: 150x300mm Large Size Welded Stainless Steel Rectangular Tube SS201 SS304 SS316 for Construction and Fabrication
Brand: (GuangDong)Foshan Winsco Metal Products Co., Ltd.
SKU: Seaworthy export packing specially designed for stainless steel stair & railing accessories. 1. Individual EPE foam bag for every polished/mirror/600G/PVD fitting to protect surface against scratches. 2. Parts separated by foam padding to prevent collisio
Price: negotiable USD
Availability: InStock

Large-format welded stainless steel rectangular hollow section manufactured in SS201, SS304 and SS316. Wall thickness, length, finish and tolerances can be matched to your drawing, fabrication plan or project requirement.

150 × 300mm Profile SS201 / SS304 / SS316 Welded Construction Project Customization

What is a 150×300mm stainless steel rectangular tube?

It is a large welded rectangular hollow section with a nominal outside profile of 150mm × 300mm. VVINSCO produces it for architectural metalwork, equipment frames and made-to-order fabrication in SS201, SS304 or SS316. Final wall thickness, length, finish, corner profile and tolerance are confirmed against the purchase specification.

Product Views

Real factory and inventory views showing large-format profiles, thick-wall openings, formed corners and welded rectangular-tube production.

Built for Large-Format Fabrication

Confirmed Geometry

Profile size, wall thickness, corner radius, straightness and tolerances are reviewed before production.

Grade Options

Choose SS201, SS304 or SS316 according to the service environment, fabrication process and project budget.

Finish Matching

2B, satin/brushed, polished and project-specific finishes are available subject to confirmed material and quantity.

Fabrication Support

Cutting, drilling and welding requirements can be quoted; special forming is reviewed from drawings for feasibility.

Product Specifications

Use this table as the inquiry checklist. Unlisted dimensions are confirmed by drawing and quotation.

Brand	VVINSCO
Manufacturer	Foshan Winsco Metal Products Co., Ltd.
Product Type	Large-size welded stainless steel rectangular tube / hollow section
Nominal Outside Profile	150 × 300mm
Material Grades	SS201, SS304, SS316
Construction	Welded and formed from stainless steel strip or sheet
Wall Thickness	Made to confirmed order specification
Length	Project length or cut-to-length, subject to confirmation
Surface Finish	2B, satin/brushed, polished or project-specific finish
Corner Profile	Formed radius; final radius depends on tooling, grade and wall thickness
Tolerance	According to confirmed drawing, sample or purchase order
Processing Options	Cutting, drilling and welding; other fabrication reviewed by drawing
Production Standard	ASTM A554 or according to the confirmed drawing and purchase specification
Application	Construction, architectural frames, machinery and equipment frames, elevators, shipbuilding and custom metal fabrication
Inspection Documents	Material Test Certificate EN 10204 3.1 available when specified in the order
Packing	Protective film, woven-bag bundles or project-specific export packing
Origin	Foshan, Guangdong, China

Which Stainless Steel Grade Should You Choose?

Grade	Typical Selection Reason	Common Project Direction
SS201	Cost-focused stainless option for controlled environments	Indoor decorative fabrication and general metalwork
SS304	Balanced corrosion resistance, fabrication and appearance	Architectural, commercial and general industrial projects
SS316	Enhanced corrosion resistance for more demanding exposure	Coastal, humid or selected chemical-service environments after technical review

Material selection should be confirmed against the actual environment, structural design, welding procedure and maintenance plan.

Applications

The 150×300mm profile is suited to projects that need a wider visual face, enclosed hollow construction and custom fabrication.

Architectural Frames Decorative Screens & Partitions Facade & Canopy Fabrication Equipment Frames Custom Metal Structures Commercial Interior Metalwork

For any load-bearing or safety-critical use, the tube specification and joint design must be approved by the project engineer.

Custom Production & Processing

Send the information below for a faster, more accurate quotation:

1. Material grade
SS201, SS304 or SS316

2. Required wall thickness
State the nominal thickness and tolerance

3. Tube length
Standard/project length or cut list

4. Surface finish
2B, brushed, polished or approved sample

5. Quantity
Total pieces, metres or project tonnage

6. Drawing / end use
Include hole, cut, weld and tolerance details

Production & Quality Control

01 · Material Review
Grade and order specification checked before production.

02 · Forming & Welding
Profile geometry and weld condition controlled during forming.

03 · Dimension Check
Profile, length, wall and straightness checked to the agreed plan.

04 · Finish & Packing
Surface condition and export packing confirmed before dispatch.

Frequently Asked Questions

Do you manufacture 150×300mm stainless steel rectangular tube?

Yes. VVINSCO supplies large-size welded rectangular tubes with a nominal 150×300mm profile. Grade, wall thickness, length, finish, tolerance and quantity are confirmed before quotation and production.

Is SS316 available?

Yes. SS316 can be supplied for projects requiring enhanced corrosion resistance. Availability, minimum quantity and lead time depend on the confirmed wall thickness, finish and production schedule.

Can the tube be cut, drilled or welded?

Yes. Cutting, drilling and welding requirements can be included in the quotation. Send a drawing with dimensions, hole positions, joint details and tolerance requirements for a feasibility review.

What information is needed for a quotation?

Please provide grade, 150×300mm profile confirmation, wall thickness, length, finish, quantity, application and any fabrication drawing. This allows VVINSCO to check feasibility, material planning, packing and delivery terms.

Where is VVINSCO located?

VVINSCO is the brand of Foshan Winsco Metal Products Co., Ltd., a stainless steel manufacturer and exporter based in Foshan, Guangdong, China, with more than 23 years of industry experience.

Send Your 150×300mm Tube Specification

Tell us the grade, wall thickness, length, finish, quantity and intended application. The VVINSCO team will review production feasibility and prepare a project-specific quotation.

REQUEST A QUOTATION

VVINSCO · AT YOUR SIDE
Foshan Winsco Metal Products Co., Ltd. · Foshan, Guangdong, China

Ratings & Review

Overall Rating

4.0

Based on 50 reviews for this product

Rating Snapshot

The following is the distribution of all ratings

5 stars

4 stars

100%

3 stars

2 stars

1 stars

All Reviews

Ali Hassan

Yemen Jun 17.2026

Helpful (9)

Very satisfied with Winsco’s big size stainless rectangular welded pipes. We selected 304 grade for our building facade framework. Tubes are straight without bending, surface condition is good. They can produce both 201,304 and 316 grades to match our different project budgets. Communication was quick and professional, delivery time was on schedule. Highly recommend for large structural inox tube orders.

Carlos Mendez

Peru Oct 3.2025

Helpful (6)

This 150x300mm welded stainless rectangular tube meets our industrial structure requirements perfectly. The weld quality is great and the anti-corrosion performance is reliable. All pipes were carefully bundled and protected during shipping. Winsco team answered all technical questions and sent all required documents. We will keep this supplier as our long-term stainless steel pipe partner.

John Bennett

Australia Dec 8.2023

Helpful (7)

We bought these large welded rectangular stainless tubes (150×300mm, grade 316) for our coastal marine project. The corrosion resistance is outstanding for seaside environments. Weld seams are smooth and fully cleaned. Dimensions are precise and consistent for every piece. The supplier Winsco arranged solid packing to avoid deformation in sea freight. Material test certificates were provided promptly. Will reorder for our next seaside construction job.

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Contact Person :	Mr. Tian
Tel :	+8615820648532
Fax :	0086-757-86856916