ASTM A240 Type 436 Stainless Steel Sheet & Plate
ASTM A240 Type 436 Stainless Steel Sheet & Plate
As a professional stainless steel supplier, SHH STEEL is pleased to present ASTM A240 Type 436 Stainless Steel Sheet and Plate. Also known as UNS S43600, this grade is a further improvement of Type 434 ferritic stainless steel.
Type 436 contains 0.75–1.25% molybdenum for enhanced pitting resistance and is stabilized with niobium (columbium) to minimize ridging (roping) during forming operations and to improve weldability. It retains the magnetic properties, good formability and cost advantages of the 400-series ferritic grades. SHH STEEL supplies ASTM A240 Type 436 in both sheet and plate forms, covering thicknesses from 0.4 mm to 80 mm, with widths up to 1500–2000 mm and lengths up to 12000 mm. Custom sizes and surface finishes are available.
The material is typically delivered in the annealed condition with full Mill Test Certificates (EN 10204 3.1). Whether for thin decorative sheet or heavier plate applications, SHH STEEL provides consistent quality for automotive, appliance and architectural projects worldwide.
Material Specification
ASTM A240 Type 436 stainless steel sheet and plate are manufactured in accordance with ASTM A240/A240M and ASME SA-240.
| Specification Element | Requirement | SHH STEEL Compliance |
|---|---|---|
| Primary Standard | ASTM A240 / ASME SA-240 Type 436 | Full compliance |
| UNS Designation | S43600 | Confirmed |
| Product Form | Sheet and Plate | Both available |
| Thickness Range | 0.4 mm – 80 mm | Custom sizes available |
| Width / Length | Up to 1500–2000 mm / 12000 mm | Custom fabrication supported |
| Surface Finish | 2B, BA, HL, No.4, No.1 | Multiple options |
| Heat Treatment Condition | Annealed | Standard supply condition |
| Certification | EN 10204 3.1 / 3.2 | Available |
Chemical Composition
The chemical composition of ASTM A240 Type 436 includes both molybdenum and niobium for improved performance.
| Element | Content (%) | Standard Limit | Role |
|---|---|---|---|
| Carbon (C) | ≤ 0.12 | 0.12 max | Strength and corrosion balance |
| Manganese (Mn) | ≤ 1.00 | 1.00 max | Deoxidation and strength |
| Phosphorus (P) | ≤ 0.040 | 0.040 max | Impurity control |
| Sulfur (S) | ≤ 0.030 | 0.030 max | Cleanliness |
| Silicon (Si) | ≤ 1.00 | 1.00 max | Deoxidation |
| Chromium (Cr) | 16.0 – 18.0 | 16.0 – 18.0 | Corrosion resistance |
| Molybdenum (Mo) | 0.75 – 1.25 | 0.75 – 1.25 | Improved pitting resistance |
| Niobium (Nb/Cb) | 5×C min – 0.80 max | 5×C min – 0.80 max | Stabilization, reduced ridging, better weldability |
Mechanical Properties
In the annealed condition, ASTM A240 Type 436 provides good formability and moderate strength.
| Property | Value | Test Method |
|---|---|---|
| Tensile Strength | ≥ 450 MPa (65 ksi) | ASTM A370 |
| Yield Strength (0.2% Offset) | ≥ 205 – 240 MPa | ASTM A370 |
| Elongation in 50 mm | ≥ 20 – 22% | ASTM A370 |
| Hardness | ≤ 90 HRB | ASTM E18 |
| Density | 7.74 g/cm³ | — |
Delivery Conditions
SHH STEEL supplies ASTM A240 Type 436 primarily in the annealed condition. Detailed capabilities by surface finish are as follows:
2B Finish (Cold-rolled, annealed, pickled and skin-passed)
- Typical thickness range: 0.4 mm – 3.0 mm (up to 6.0 mm possible)
- Maximum width: up to 1500–2000 mm
- Most common finish for automotive and appliance applications.
BA (Bright Annealed)
- Available in thinner gauges for decorative and high-reflectivity requirements.
No.4 / HL (Hairline)
- Popular for architectural and automotive trim applications.
No.1 Finish (Hot-rolled, annealed and pickled)
- Typical thickness range: 3.0 mm – 80 mm
- Standard finish for heavier plates.
Protective PVC film can be applied on one or both sides. Precision cutting (plasma, laser or waterjet) and closer dimensional tolerances are available upon request.
Tolerances
Dimensional tolerances for ASTM A240 Type 436 sheet and plate follow ASTM A480/A480M.
- Thickness tolerances vary by product form and thickness.
- Width tolerance is typically +6 mm / 0 mm or better for cold-rolled sheet.
- Length tolerance for cut-to-length material is normally +10 mm / 0 mm.
- Flatness is controlled according to ASTM A480; improved flatness can be supplied for precision fabrication.
- Edge conditions include mill edge, slit edge, sheared edge or plasma/laser cut edge according to customer preference.
Tighter tolerances can be arranged for special projects.
Weldability
ASTM A240 Type 436 offers improved weldability compared with standard Type 430 and Type 434 due to niobium stabilization. It can be welded by common fusion processes such as GTAW (TIG), GMAW (MIG) and SMAW.
The niobium addition helps reduce the risk of intergranular corrosion and improves resistance to ridging. Matching or suitable filler metals may be used depending on the application. Heat input should still be controlled to limit grain growth in the heat-affected zone. Preheating is generally not required for thin sections. Proper cleaning after welding is recommended to maintain corrosion resistance.
Equivalent Material Grades
| Grade | Standard | Designation |
|---|---|---|
| Type 436 | ASTM A240 / ASME SA-240 | — |
| UNS S43600 | Unified Numbering System | — |
| Related to 1.4113 | EN | Mo-bearing ferritic with Nb |
| SUS436 | JIS (reference) | — |
| Related Chinese grades | GB/T series | Mo + Nb stabilized 16–18% Cr ferritic types |
| SAE 51436 | SAE | — |
Applications
ASTM A240 Type 436 is selected where improved pitting resistance, reduced ridging during forming and better weldability are required. Typical applications are shown below with relevant keywords:
| Application Area | Typical Components / Uses (Keywords) |
|---|---|
| Automotive Trim & Molding | Exterior and interior trim, decorative parts – A240 436 Automotive Trim |
| Home Appliances | Decorative panels and components – A240 436 Appliances |
| Architectural Applications | Cladding and decorative elements – A240 436 Architectural |
| Exhaust System Components | Parts requiring better formability and corrosion resistance – A240 436 Exhaust |
| General Fabrication | Formed and welded parts needing improved surface quality – A240 436 Fabrication |
| Consumer Products | Parts exposed to mild chloride or de-icing environments – A240 436 Consumer |
Why Choose SHH STEEL
SHH STEEL maintains long-term strategic cooperation with major Chinese stainless steel mills and acts as a first-level (primary) agent for these mills. This direct partnership enables us to offer competitive pricing advantages, faster delivery times and consistent quality assurance that many intermediate traders cannot match.
All ASTM A240 Type 436 material is sourced from reputable Chinese mills under strict quality control, supplied with complete Mill Test Certificates, and supported by our professional export team. Customers benefit from reliable supply, short lead times, technical support and cost-effective solutions for automotive, appliance and architectural applications worldwide.
FAQ
- What is the main difference between Type 434 and Type 436?Both grades contain molybdenum (0.75–1.25%) for improved pitting resistance. Type 436 is additionally stabilized with niobium (columbium), which reduces ridging (roping) during forming and improves weldability compared with Type 434.
- Is Type 436 magnetic?Yes. Type 436 is a ferritic stainless steel and is magnetic.
- What is the UNS designation for ASTM A240 Type 436?UNS S43600.
- Why is niobium added to Type 436?Niobium stabilizes the structure, reduces the tendency for ridging or wavy lines during cold forming, and improves resistance to intergranular corrosion after welding.
Conclusion
ASTM A240 Type 436 (UNS S43600) Stainless Steel Sheet and Plate from SHH STEEL combine molybdenum for enhanced pitting resistance with niobium stabilization for improved formability and weldability. With strict quality control, flexible sizing options, competitive pricing through direct mill partnerships and professional global export service, we deliver trusted solutions for automotive, appliance and architectural applications worldwide.
Contact SHH STEEL today for your ASTM A240 Type 436 (UNS S43600) requirements.
ASTM A240 Type 436 Stainless Steel Sheet & Plate | 436 / UNS S43600
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