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ASTM A554 430 Decorative Stainless Steel Tube Ferritic Grade for Architectural and Ornamental Applications
| MOQ: | 5Ton |
| Price: | Based on grade, size, surface, processing, quantity and current raw material market price. |
| Standard Packaging: | Standard seaworthy export packing with bundles, waterproof wrapping, pallets or wooden cases. |
| Delivery Period: | 7-15 |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
| Supply Capacity: | Stock supply, regular production and custom manufacturing available. |
Shaanxi Shangyou Stainless Steel Co., Ltd. supplies ASTM A554 430 decorative stainless steel tube for global architectural contractors, decorative metal fabricators, appliance manufacturers, and furniture producers requiring cost-effective ferritic stainless tubing with good corrosion resistance and attractive surface finish. Produced to ASTM A554/A554M, this specification covers welded stainless steel mechanical tubing intended for ornamental, structural, and other applications where appearance and mechanical properties are needed.
ASTM A554 is the standard specification for welded stainless steel mechanical tubing. 430 (UNS S43000, MT-430) is a ferritic stainless steel grade containing 16.0-18.0% chromium and minimal nickel (≤0.60%). The ferritic structure makes it magnetic in all conditions and provides good resistance to oxidation and stress corrosion cracking. It is widely considered a cost-effective alternative to 304, with lower material cost and comparable performance in mild atmospheric and decorative applications. The tubes are manufactured from flat-rolled steel by an automatic welding process without the addition of filler metal. Polished finishes from satin to mirror are available for decorative applications. The specification covers sizes to 16 in. [406.4 mm] outside dimension with wall thicknesses of 0.020 in. [0.51 mm] and over.
| Dimension | Specification |
|---|---|
| Product Name | ASTM A554 430 Decorative Stainless Steel Tube |
| Product Alias | 430 Ornamental Tube / Ferritic Tube / Decorative Stainless Tube / MT-430 Tubing / A554 430 Tube |
| Material Type | Ferritic Stainless Steel (Welded, No Filler Metal) |
| Key Feature | Ferritic grade; magnetic; 16-18% Cr; cost-effective; OD to 16in; good stress corrosion resistance |
| UNS Number | UNS S43000 |
| Chemical Composition | Cr 16.0-18.0% / Ni ≤0.60% / C ≤0.12% / Mn ≤1.00% / Si ≤1.00% / P ≤0.040% / S ≤0.030% / Fe Balance |
| Mechanical Properties | Tensile ≥414-480 MPa / Yield ≥205-310 MPa / Elongation ≥20-22% |
| Manufacturing Process | Flat-Rolled Coil → Forming → Automatic Welding (No Filler Metal) → Sizing → Surface Finishing → Testing |
| Delivery Condition | As-Welded / Cold-Reduced / Annealed |
| Surface Finish | Satin (180/240/320/400 grit) / Brushed / Hairline HL / Mirror / 8K |
| Primary Applications | Architectural Decor / Handrails / Appliances / Automotive Trim / Furniture / Kitchenware |
| Parameter | Available Options |
|---|---|
| Product Standard | ASTM A554/A554M |
| Grade | MT-430 (UNS S43000) |
| Shape | Round / Square / Rectangular / Special Shapes |
| Outside Dimension | Up to 16 in. [406.4 mm] |
| Wall Thickness | 0.020 in. [0.51 mm] and over |
| Length | Cut-to-length per order; standard stock lengths available |
| Welding Process | Automatic welding, no filler metal added |
| Delivery Condition | As-Welded / Welded & Annealed / Cold-Reduced / Cold-Reduced & Annealed |
| Inspection | Tension Test / Flattening Test / Hydrostatic or NDE Test |
| Magnetic Property | Magnetic in all conditions |
| Documents | MTC 3.1 / Inspection Reports / Packing List / Heat Number Traceability |
ASTM A554 430 decorative tube is specified for ornamental and structural applications where 304-grade performance is not required and cost is a priority.
Typical applications include:
- Architectural handrails, balustrades, and stair railings
- Decorative appliance and automotive molding and trim
- Range hoods and restaurant equipment
- Kitchenware and household appliances
- Furniture frames and display fixtures
- Cabinet hardware and drawn/stamped parts
- Interior decorative architectural elements
Key selection considerations: Grade 430 is the cost-effective ferritic alternative to 304. It provides good resistance to oxidation and stress corrosion cracking, but slightly less corrosion resistance than 304/316 in aggressive environments. 430 is magnetic in all conditions—this is a key differentiator from austenitic 300 series grades. Weldability is poorer than Type 409 and welds should not be used for rigorous service; recommended filler metal is AWS E/ER 308L or 430. Annealed 430 is susceptible to stretcher strains and roping during forming—skin passing after annealing improves formability. Maximum service temperature: 870°C intermittent / 815°C continuous. Select 304 or 316 for applications requiring superior corrosion resistance, marine exposure, or frequent welding.
Shangyou Stainless Steel provides value-added processing including custom cutting, bending, welding, and polishing. Packaging must protect surface finishes from damage during transport.
All tubes are packed with export-standard protection including protective sleeving, end caps, steel strapping, waterproof wrapping, and wooden pallets or steel frames.
Quality documents include MTC 3.1, inspection reports, packing list, and heat number traceability. Third-party inspection (SGS, TUV, BV) can be arranged upon request.
1. What is ASTM A554 430?
ASTM A554 430 is a ferritic stainless steel mechanical tube grade (MT-430, UNS S43000) specified for ornamental, structural, and decorative applications.
2. What is the chemical composition of 430?
Cr 16.0-18.0%, Ni ≤0.60%, C ≤0.12%, Mn ≤1.00%, Si ≤1.00%, P ≤0.040%, S ≤0.030%, Fe Balance.
3. What mechanical properties does 430 have?
Tensile ≥414 MPa, Yield ≥205 MPa, Elongation ≥20%, Hardness ≤190 HB.
4. Is 430 stainless steel magnetic?
Yes, 430 is magnetic in all conditions due to its ferritic structure.
5. What is the advantage of 430 over 304?
430 is a more cost-effective alternative with good corrosion resistance and excellent stress corrosion resistance. However, its corrosion resistance is slightly lower than 304, and it is magnetic.
6. What are typical applications for 430 decorative tube?
Handrails, architectural trim, automotive trim, appliances, kitchenware, cabinet hardware, and furniture.
7. Can 430 be welded?
Yes, but weldability is poorer than Type 409. Recommended filler metals are AWS E/ER 308L or 430, and welds are not suitable for rigorous service.
8. What size range does ASTM A554 cover?
Up to 16 in. [406.4 mm] outside dimension, WT 0.020 in. [0.51 mm] and over.
9. What is the maximum service temperature for 430?
Intermittent: 870°C; Continuous: 815°C.
10. What surface finishes are available?
Satin/brushed (180-600 grit), hairline (HL), mirror finish, 8K (high mirror).
