Specification
Chemical Composition
SS 302 Welded Pipes – Stainless Steel 302 ERW / Welded Pipe ASTM A312 TP 302
Detailed Information
SS 302 Welded Pipes Suppliers – UNS S30200 Pipes | Type 302 (UNS S30200/1.4319)
We are leading Stainless Steel 302 Welded Pipes Suppliers, offering a complete range of SS 302 Welded Pipes, including 302 Stainless Steel ERW Pipe, SS 302 Electric Resistance Welded (ERW) pipes, and Stainless Steel 302 ERW/Welded Pipe ASTM A312 TP 302 manufactured as per international standards.
Manufactured from Type 302 (UNS S30200/1.4319), these pipes are widely used in applications that require excellent strength, corrosion resistance, and good formability. Our welded pipes are supplied in various sizes, schedules, and finishes to meet industrial, structural, and fabrication requirements across industries such as chemical processing, food processing, automotive, construction, and power generation.
As experienced stockists and exporters of UNS S30200 pipes, we ensure strict quality control, dimensional accuracy, and compliance with ASTM, ASME, and AMS standards including Stainless Steel (AMS 5516) Type 302.
What is Stainless Steel 302 Welded Pipe?
Stainless Steel 302 is an austenitic chromium-nickel stainless steel known for its higher carbon content compared to 304, which enhances strength while maintaining good corrosion resistance.
SS 302 Welded Pipes are manufactured by forming stainless steel strip or coil into a tubular shape and joining the edges using Electric Resistance Welding (ERW). The result is a strong, reliable pipe with consistent wall thickness and dimensional precision.
The most commonly supplied specification is:
- Stainless Steel 302 ERW/Welded Pipe ASTM A312 TP 302
- ASME SA312 TP 302
- UNS S30200 pipes
- Type 302 (UNS S30200/1.4319)
These pipes are ideal for moderate to high temperature environments and applications requiring superior mechanical strength.
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Stainless Steel 302 ERW / Welded Pipe ASTM A312 TP 302 – Specifications
We supply SS 302 Electric Resistance Welded (ERW) pipes in compliance with international standards.
|
Specification |
ASTM A312 / ASME SA312 |
|
Grade |
TP 302 |
|
UNS Number |
S30200 |
|
EN / W.Nr |
1.4319 |
|
Standard |
ASTM, ASME, AMS |
|
AMS Grade |
Stainless Steel (AMS 5516) Type 302 |
|
Pipe Type |
ERW / Welded |
|
Size Range |
½” NB to 24” NB |
|
Wall Thickness |
SCH 5 to SCH XXS |
|
Length |
Single Random, Double Random, Cut Length |
|
Finish |
Annealed, Pickled, Polished, Bright Annealed |
Chemical Composition of Type 302 (UNS S30200/1.4319)
|
Element |
Composition (%) |
|---|---|
|
Carbon (C) |
0.15 max |
|
Chromium (Cr) |
17.0 – 19.0 |
|
Nickel (Ni) |
8.0 – 10.0 |
|
Manganese (Mn) |
2.00 max |
|
Silicon (Si) |
1.00 max |
|
Phosphorus (P) |
0.045 max |
|
Sulfur (S) |
0.030 max |
The higher carbon content in Type 302 (UNS S30200/1.4319) increases tensile strength while maintaining corrosion resistance similar to 304.
Mechanical Properties of SS 302 Welded Pipes
|
Property |
Value |
|
Tensile Strength |
515 MPa (min) |
|
Yield Strength |
205 MPa (min) |
|
Elongation |
40% (min) |
|
Hardness |
92 HRB (max) |
These properties make SS 302 Welded Pipes suitable for structural and pressure applications where higher strength is required.
Features of SS 302 Electric Resistance Welded (ERW) Pipes
1. High Strength: Due to increased carbon content, 302 Stainless Steel ERW Pipe offers higher tensile strength compared to standard 304 grade.
2. Excellent Corrosion Resistance: Performs well in atmospheric conditions, mild chemical environments, and moderately corrosive applications.
3. Good Formability: Suitable for bending, forming, and fabrication processes.
4. Heat Resistance: Maintains strength and oxidation resistance at elevated temperatures.
5. Dimensional Accuracy: Manufactured with advanced ERW technology to ensure consistent wall thickness and straightness.
Manufacturing Process – 302 Stainless Steel ERW Pipe
Our SS 302 Electric Resistance Welded (ERW) pipes are produced using a controlled manufacturing process:
- High-quality 302 stainless steel strip is selected.
- The strip is roll-formed into a cylindrical shape.
- Edges are joined using high-frequency electric resistance welding.
- Weld seam is heat-treated and normalized.
- Pipes undergo sizing, straightening, and finishing.
- Non-destructive testing (NDT) such as hydro test, eddy current test, and PMI is performed.
- Final inspection and marking as per ASTM A312 TP 302.
This ensures high weld integrity and long-term performance in service conditions.
Applications of Stainless Steel 302 Welded Pipes
Because of their strength and corrosion resistance, UNS S30200 pipes are widely used in:
- Chemical processing plants
- Food and beverage equipment
- Automotive components
- Structural frameworks
- Heat exchangers
- Oil & gas pipelines
- Pharmaceutical processing
- Industrial fabrication
In our experience supplying Stainless Steel 302 Welded Pipes Suppliers across domestic and export markets, customers prefer this grade where higher mechanical strength is required without significantly increasing cost.
Stainless Steel (AMS 5516) Type 302 – Industrial Significance
Stainless Steel (AMS 5516) Type 302 is commonly specified in aerospace and high-strength industrial applications. The AMS specification ensures controlled chemical composition and mechanical performance.
When supplied under AMS 5516, the material undergoes strict testing and certification, making it suitable for demanding engineering environments.
Why Choose Us for SS 302 Welded Pipes?
- Industry Experience: With years of experience in supplying UNS S30200 pipes, we understand the technical requirements of industrial buyers.
- Strict Compliance: We supply material strictly as per ASTM A312 TP 302, ASME SA312, and Stainless Steel (AMS 5516) Type 302 standards.
- Ready Stock Availability: Wide stock range ensures faster delivery and competitive pricing.
- Technical Support: Our team assists in grade selection, specification matching, and documentation requirements.
- Transparent Documentation: We provide MTC (Mill Test Certificates), third-party inspection reports, and compliance certificates.
Stainless Steel 302 Welded Pipes Suppliers
If you are looking for reliable SS 302 Welded Pipes, we offer a complete range of Stainless Steel 302 ERW/Welded Pipe ASTM A312 TP 302, manufactured from premium Stainless Steel 302 ERW/Welded Pipe ASTM A312 TP 302, Type 302 (UNS S30200/1.4319) material.
As established 302 Stainless Steel ERW Pipe, Type 302 (UNS S30200/1.4319) we focus on quality, traceability, and customer satisfaction. Our pipes are engineered for strength, durability, and long service life in demanding industrial environments.
For technical specifications, pricing, or bulk inquiries regarding UNS S30200 pipes or SS 302 Electric Resistance Welded (ERW) pipes, contact our team for expert guidance and prompt support.
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