Durable High Corrosion Resistance Stainless Steel Pipe 321 Series

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Durable High Corrosion Resistance Stainless Steel Pipe 321 Series

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Product Description

Basic Info.

Model NO.STMSS

MaterialStainless Steel

Surface TreatmentPolished

Section ShapeRound

Steel Pipe TypePipe/Tube/Tubing

Series300 Series, 304, 316L, 321, 904L

TechniqueHot Rolled/Cold Drawn

StandardsASTM A312 A790

HS Code7306400000

Product Description

High Corrosion Resistance Stainless Steel Pipe

We offer a full range of welded stainless steel pipes in grades 202, 304/304L, 316/316L, 310/310S, 321, 410, and 904L.

With outer diameter from 5mm to 1200mm and wall thickness from 0.5mm to 30mm, our tubes undergo strict quality control for ±0.05mm high precision tolerance. They offer stable performance, excellent finish, good weldability, and long life, widely used in construction, food equipment, chemical engineering, marine, and high-temperature industries.

Available Grade Specializations

202 Stainless Steel Pipe: Economical austenitic tube for mildly corrosive environments. High surface finish and tight dimensional tolerance.

304/304L Stainless Steel Pipe: Most widely used with outstanding corrosion resistance. 304L offers improved intergranular corrosion resistance after welding.

316/316L Stainless Steel Pipe: Superior resistance to chloride corrosion with added molybdenum. Ideal for marine and chemical uses.

Technical Specifications

Parameter	Details
Available Grades	202 / 304 / 304L / 316 / 316L / 310S / 321 / 410 / 904L
Manufacturing	Hot Rolled / Cold Drawn
Standards	ASTM A312 / ASTM A213 / ASTM A269 / EN
Size Range	OD: 6mm – 630mm \| Thickness: 0.5mm – 30mm
Length	1-12m / Customized
Finishes	2B, BA, NO.1, NO.4, 8K Mirror, Hairline, Brushed

Material Application Matrix

Grade	Key Advantage	Typical Industrial Use
310S	High-temperature resistance	Furnace and heat-resistant equipment
321	Stabilized high temp strength	Heat exchangers and boilers
410	High hardness & magnetic	Mechanical parts and hardware
904L	Super acid resistance	Critical chemical processing

Production Excellence

Frequently Asked Questions

What is the standard lead time for stainless steel pipe orders?

Standard stock models typically ship within 15–30 days. For customized specifications or large-scale industrial orders, the lead time is usually between 30–45 days depending on the manufacturing complexity.

Do you provide material test certificates for the pipes?

Yes, all shipments are accompanied by comprehensive material test certificates (MTC) according to EN 10204 3.1, ensuring full traceability and compliance with international standards like ASTM and ISO.

Can the pipes be customized to specific dimensions?

Absolutely. We offer tailored services for outer diameter, wall thickness, and specific lengths to meet your unique project requirements. OEM processing services are also available.

Which surface finishes are available for architectural projects?

For decorative and architectural use, we provide a variety of high-quality finishes including 8K Mirror, Hairline, Brushed (No. 4), and Sandblasted surfaces.

How are the pipes packed for international sea freight?

We use standard seaworthy export packaging, which includes protective plastic caps, woven bags, or wooden crates to ensure the products remain scratch-free and stable during transit.

What standards do your stainless steel pipes comply with?

Our products are manufactured in strict accordance with ASTM A312, ASTM A213, ASTM A269, and relevant EN standards, and are certified by ISO 9001 and SGS.