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Quality ASTM A312 ERW Straight Seam Welded Pipe For High Temperature Corrosive Service factory
Quality ASTM A312 ERW Straight Seam Welded Pipe For High Temperature Corrosive Service factory

ASTM A312 ERW Straight Seam Welded Pipe For High Temperature Corrosive Service

Basic Properties
Place of Origin: MADE IN CHAINA
Brand Name: Baosteel，TISCO
Certification: EN 10204 Type 3.1 / 3.2 available
Model Number: 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507
Trading Properties
Minimum Order Quantity: 100kg
Price: Negotiable (Request a Quote)
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Ability: 10000tons
Tags

Molybdenum Alloy Stainless Steel Pipe

Stainless Steel Pipe Chloride Resistance

ASTM A312 Straight Seam Welded Pipe
Product Summary
ASTM A312 pipe Seamless & Welded TP304 TP304L

Product Details

Highlight:

ASTM A312 Straight Seam Welded Pipe

,

ERW Straight Seam Welded Pipe
Country Of Origin: MADE IN CHAINA
Brand: Baosteel，TISCO
Certifications: ISO/EN 10204 Type 3.1 / 3.2 Available
Grade: 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH)
MOQ: 100kg
Price: Negotiable (Request A Quote)
Packaging: Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag
Delivery Time: 15-25days
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Capacity: 10000tons
Product Description

Our ASTM A312 welded stainless steel pipe is manufactured using precision electric resistance welding (ERW) and solution annealing heat treatment. Designed for high-temperature and general corrosive service applications, this straight-seam welded pipe offers the same mechanical integrity as seamless pipe at a more economical cost. Available in standard grades TP304, TP304L, TP316, and TP316L, our A312 welded pipe is widely used in chemical processing, food & beverage, pharmaceutical, and power generation industries.

Key Specifications
Specification Details
Standard ASTM A312 / ASME SA312
Type Straight-Seam Welded (ERW)
Grades TP304, TP304L, TP316, TP316L, TP321, TP347
Size Range 1/8″ to 24″ NPS (DN6 to DN600)
Schedules Sch 5S, 10S, 40S, 80S
Lengths Single Random (16-22 ft), Double Random (35-40 ft), or Custom
Heat Treatment Solution Annealed & Quenched
Surface Finish Mill Finish, Pickled, or Polished
Chemical Composition

Highlights specific data for SEO for "TP316L vs 304 chemical properties."

Grade C (Max) Mn (Max) P (Max) S (Max) Si (Max) Cr Ni Mo
TP304 0.08 2.00 0.045 0.030 1.00 18.0-20.0 8.0-11.0 -
TP304L 0.035 2.00 0.045 0.030 1.00 18.0-20.0 8.0-12.0 -
TP316 0.08 2.00 0.045 0.030 1.00 16.0-18.0 10.0-14.0 2.0-3.0
TP316L 0.035 2.00 0.045 0.030 1.00 16.0-18.0 10.0-14.0 2.0-3.0
Mechanical Properties
Property TP304 / TP304L TP316 / TP316L
Tensile Strength (MPa) ≥ 515 ≥ 485
Yield Strength (MPa) ≥ 205 ≥ 170
Elongation (%) ≥ 35 ≥ 35
Hardness (HRB) ≤ 90 ≤ 90
Applications: Why Choose ASTM A312 Pipe?

Our customers rely on ASTM A312 stainless pipe for critical infrastructure:

  1. Chemical & Petrochemical Plants: Transporting corrosive acids and hydrocarbons.

  2. Food & Beverage Processing: Sanitary lines requiring cleanability and non-reactive surfaces.

  3. Pharmaceutical Industry: High-purity steam and fluid transfer.

  4. Desalination & Water Treatment: Resisting saltwater corrosion (316L).

  5. Heat Exchangers & Boilers: High-temperature fluid movement.

Key Features & Benefits

  • 100% Weld Joint Efficiency: Proper solution annealing and heat treatment ensure the welded seam meets base metal strength requirements, making it suitable for pressure-rated applications as defined in ASME B31.3.

  • Excellent Corrosion Resistance: Austenitic structure with chromium content (16-20%) provides outstanding resistance to oxidation and general corrosive environments. TP316/L grades add molybdenum for enhanced chloride resistance.

  • High-Temperature Performance: Grades with "H" designation (TP304H, TP316H) are specifically intended for service where creep and stress rupture properties are critical at elevated temperatures.

  • Low-Temperature Service Capability: A312 welded pipe in TP304, TP304L, and TP347 grades is accepted by ASME Section VIII Division 1 for service temperatures as low as -425°F (-250°C) without impact testing qualification.

  • Cost-Effective Alternative: Compared to seamless pipe, welded A312 offers significant cost savings (typically 30-40%) with comparable performance for most general corrosive and high-temperature applications.

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