ASTM A312 TP304 Stainless Steel Pipe
Standard: ASTM A554, A269, A270, A376, A409, A511, A632, A814, A249, A270, A312, A213, A688, JIS G3459, JIS 3463 OD:10-600mm
Thickness: 0.3-12mm
Length:1-6m
Surface treatment: 180#,240#,320# hairline, 400#,600# mirror polish
Product Overview
ASTM A312 TP304 stainless steel pipes are general-use austenitic pipes, widely used in chemical, food & beverage, oil & gas, and industrial applications, offering reliable performance in moderate corrosive and high-temperature environments.
Key Features
- Superior grain refinement ensures excellent bending and flaring workability.
Microstructure is optimized through precise solution annealing to eliminate processing stress, preventing cracking or wall-thinning during on-site cold bending, flaring, and welding.
- Tight dimensional tolerances guarantee seamless alignment in automatic welding.
Advanced cold-rolling and precision-drawing technologies keep wall thickness and outer diameter tolerances well within ASTM A312 limits, ensuring high pass rates for automatic orbital welding.
- High-purity chemical balance optimizes low-temperature impact toughness.
By strictly controlling tramp elements and balancing the chromium-nickel ratio, the pipes maintain robust mechanical stability and impact strength even in low-temperature fluid transport environments.
Product Information (Standard Parameters)
| Category | Specifications |
|---|---|
| Product Type | Stainless Steel Tube / Pipe |
| Standard Grades | TP304 / 304L, TP316 / 316L |
| Wall Thickness Range | 0.3 mm – 150 mm |
| Length Range | 1 m – 6 m (standard) |
| Shapes | Round / Square / Rectangular |
| Surface Finish | Bright / Polished / Brushed / Hairline |
Technical Data
1. Chemical Composition of ASTM A312 TP304 Stainless Steel Pipe
| Element | Composition (%) | ASTM Requirement |
|---|---|---|
| Chromium | 18.0-20.0 | Min 18.0 |
| Nickel | 8.0-11.0 | Min 8.0 |
| Carbon | ≤0.08 | Max 0.08 |
| Manganese | ≤2.0 | Max 2.0 |
| Silicon | ≤1.0 | Max 1.0 |
2. Mechanical Properties
| Property | Value | Test Standard |
|---|---|---|
| Tensile Strength | ≥515 MPa | ASTM A370 |
| Yield Strength | ≥205 MPa | ASTM A370 |
| Elongation | ≥35% | ASTM A370 |
| Hardness | ≤201 HB | ASTM E10 |
3. Standard Sizes & Dimensions
| NPS | OD (mm) | Schedule 5S | Schedule 10S | Schedule 40S |
|---|---|---|---|---|
| 1/2" | 21.3 | 1.65mm | 2.11mm | 3.73mm |
| 1" | 33.4 | 1.65mm | 2.77mm | 4.55mm |
| 2" | 60.3 | 1.65mm | 2.77mm | 5.54mm |
| 4" | 114.3 | 2.11mm | 3.05mm | 6.02mm |
Standard Length: 6 m; Custom lengths 1–12 m available
Customization Options
- Cutting to custom lengths beyond standard sizes
- Optional surface finishes (custom coatings, powder-coated, etc.)
- OEM packaging & private labeling
- Tailored mechanical properties or wall thickness for special project requirements
Quality & Certifications
- Standards Compliance: ASTM A312 / ASME SA312
- Certifications: ISO 9001:2015, CE marking, SGS, TÜV, Intertek
- Inspection & Testing: Chemical composition, mechanical properties, dimensional inspection, non-destructive testing
- Material Test Reports (MTR): Provided with every order
- All certifications are available for review upon request
Packaging & Delivery
- Standard packaging: waterproof paper wrapping + wooden pallets
- Custom packaging available per customer requirements
- 100% damage-proof protective materials ensure safe delivery
- Logistics partners: DHL, FedEx, UPS; door-to-door (DDP/FOB) delivery options
- Lead time: 3–15 working days for standard orders; custom orders depend on quantity and specifications
FAQ
Q1:Do you provide product samples?
A: Yes, we offer free small ASTM A312 TP304 Stainless Steel Pipe samples for material evaluation. (Shipping cost may apply for express delivery)
Q2: Are these pipes seamless or welded?
A: ASTM A312 pipes include both seamless and welded austenitic stainless steel pipes, suitable for high temperature and general corrosive applications.
Q3: Can the pipes be cut to custom lengths?
A: Yes, custom cutting is available to meet project-specific requirements.
Q4: What payment terms do you accept?
A: Flexible options:
30% deposit + 70% balance before shipment
100% payment against the B/L copy
LC at sight
Q5: Do you provide material test reports (MTR) or third-party inspections?
A: Yes, MTRs are provided with every order, and third-party inspection (SGS, TÜV, Intertek) is available upon request.
Q6: What is the lead time for standard and custom orders?
A: Standard orders typically ship within 3–15 working days; custom orders depend on quantity and specifications.
Contact us
Mob: +86-13772502581
Email: judesteel@juqing.hk
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