ASTM A240 Type S41500 Stainless Steel Sheet & Plate
ASTM A240 Type S41500 Stainless Steel Sheet & Plate | UNS S41500 / 13Cr-4Ni
As a professional stainless steel supplier, SHH STEEL is pleased to present ASTM A240 Type S41500 Stainless Steel Sheet and Plate. Also known as UNS S41500, this grade is a low-carbon martensitic stainless steel typically referred to as 13Cr-4Ni or modified 13% chromium steel.
Type S41500 contains 11.5–14.0% chromium, 3.5–5.5% nickel and 0.50–1.00% molybdenum. The addition of nickel and molybdenum significantly improves toughness, hardenability and corrosion resistance compared with conventional Type 410. It is widely used in the oil & gas industry and for pressure-containing equipment requiring a combination of high strength and reasonable corrosion resistance. SHH STEEL supplies ASTM A240 Type S41500 in both sheet and plate forms, covering thicknesses from 3 mm to 100 mm (thicker plates available on request), with widths up to 2500 mm and lengths up to 12000 mm. Custom sizes are available.
The material is normally supplied in the quenched and tempered condition to achieve the required high strength and toughness, with full Mill Test Certificates (EN 10204 3.1). SHH STEEL provides consistent quality for oil & gas, valve, pump and industrial projects worldwide.
Material Specification
ASTM A240 Type S41500 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 S41500 | Full compliance |
| UNS Designation | S41500 | Confirmed |
| Product Form | Sheet and Plate | Both available |
| Thickness Range | 3 mm – 100 mm (thicker available) | Custom sizes available |
| Width / Length | Up to 2500 mm / 12000 mm | Custom fabrication supported |
| Surface Finish | No.1, 2B (limited) | Multiple options |
| Heat Treatment Condition | Quenched and Tempered | Standard supply condition |
| Certification | EN 10204 3.1 / 3.2 | Available |
Chemical Composition
The chemical composition of ASTM A240 Type S41500 is designed for high strength, good toughness and improved corrosion resistance.
| Element | Content (%) | Standard Limit | Role |
|---|---|---|---|
| Carbon (C) | ≤ 0.05 | 0.05 max | Low carbon for better toughness and weldability |
| Manganese (Mn) | 0.50 – 1.00 | 0.50 – 1.00 | Strength and hot workability |
| Silicon (Si) | ≤ 0.60 | 0.60 max | Deoxidation |
| Phosphorus (P) | ≤ 0.030 | 0.030 max | Impurity control |
| Sulfur (S) | ≤ 0.030 | 0.030 max | Cleanliness |
| Chromium (Cr) | 11.5 – 14.0 | 11.5 – 14.0 | Corrosion resistance |
| Nickel (Ni) | 3.5 – 5.5 | 3.5 – 5.5 | Improves toughness and hardenability |
| Molybdenum (Mo) | 0.50 – 1.00 | 0.50 – 1.00 | Enhances strength and corrosion resistance |
Mechanical Properties
ASTM A240 Type S41500 is typically supplied in the quenched and tempered condition to achieve high strength and good toughness.
| Property | Value (Quenched & Tempered) | Test Method |
|---|---|---|
| Tensile Strength | ≥ 795 MPa | ASTM A370 |
| Yield Strength (0.2% Offset) | ≥ 620 MPa | ASTM A370 |
| Elongation in 50 mm | ≥ 15% | ASTM A370 |
| Hardness | ≤ 302 HB (typical max) | ASTM E10 |
| Density | 7.7 – 7.8 g/cm³ | — |
Note: Exact mechanical properties depend on the specific heat treatment parameters. Charpy impact testing can be provided when required.
Delivery Conditions
SHH STEEL supplies ASTM A240 Type S41500 primarily in the quenched and tempered condition.
No.1 Finish (Hot-rolled, annealed/pickled or quenched & tempered)
- Typical thickness range: 3.0 mm – 100 mm (thicker plates available)
- Maximum width: up to 2500 mm
- Standard finish for heavy plates used in pressure equipment and structural components.
Limited thinner gauges in 2B finish may be available upon request.
Protective coatings or shot-blasted surfaces can be arranged. Precision cutting (plasma, flame or waterjet) and closer dimensional tolerances are available according to customer requirements.
Tolerances
Dimensional tolerances for ASTM A240 Type S41500 sheet and plate follow ASTM A480/A480M.
- Thickness, width and length tolerances are in accordance with ASTM A480.
- Flatness is controlled according to ASTM A480; improved flatness can be supplied for precision fabrication.
- Edge conditions include mill edge, flame-cut, plasma-cut or sheared edge according to customer preference.
Tighter tolerances can be arranged for special projects.
Weldability
ASTM A240 Type S41500 can be welded, but requires careful control of procedures due to its martensitic nature. Preheating (typically 100–150°C or higher depending on thickness) and post-weld heat treatment (tempering) are generally recommended to avoid cracking and to restore toughness.
Matching or similar composition filler metals are commonly used. Controlled heat input and interpass temperature management are important. Welding procedures should be qualified according to the specific service requirements, especially for pressure equipment or sour service applications.
Equivalent Material Grades
| Grade | Standard | Designation / Notes |
|---|---|---|
| Type S41500 | ASTM A240 / ASME SA-240 | — |
| UNS S41500 | Unified Numbering System | — |
| F6NM | ASTM A182 (forgings) | Closely related |
| CA6NM | ASTM A352 / A487 (castings) | Cast equivalent |
| 13Cr-4Ni-Mo | Common industry designation | — |
| Related European grades | EN | Soft martensitic 13% Cr-Ni-Mo types |
Applications
ASTM A240 Type S41500 is widely used in applications requiring high strength, good toughness and moderate corrosion resistance. Typical applications are shown below with relevant keywords:
| Application Area | Typical Components / Uses (Keywords) |
|---|---|
| Oil & Gas Industry | Wellhead equipment, manifolds, valve components – A240 S41500 Oil Gas |
| Valves & Pumps | Valve bodies, pump shafts, impellers – A240 S41500 Valve Pump |
| Pressure Vessels & Equipment | Pressure-containing parts – A240 S41500 Pressure Vessel |
| Petrochemical Industry | Process equipment requiring strength and corrosion resistance – A240 S41500 Petrochemical |
| General Engineering | High-strength components – A240 S41500 Engineering |
| Offshore Applications | Structural and process components – A240 S41500 Offshore |
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 S41500 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 oil & gas, valve and industrial applications worldwide.
FAQ
- What is the main difference between Type 410 and Type S41500?Type S41500 contains nickel (3.5–5.5%) and molybdenum (0.5–1.0%), and has much lower carbon (≤ 0.05%). These additions provide significantly better toughness, hardenability and corrosion resistance compared with standard Type 410.
- Is Type S41500 magnetic?Yes. Type S41500 is a martensitic stainless steel and is magnetic.
- In what condition is Type S41500 normally supplied?It is typically supplied in the quenched and tempered condition to achieve the high strength and toughness required for most applications.
Conclusion
ASTM A240 Type S41500 (UNS S41500) Stainless Steel Sheet and Plate from SHH STEEL provide high strength, good toughness and improved corrosion resistance through a balanced 13Cr-4Ni-Mo composition. With strict quality control, flexible sizing options, competitive pricing through direct mill partnerships and professional global export service, we deliver trusted solutions for oil & gas, valves, pumps and pressure equipment applications worldwide.
Contact SHH STEEL today for your ASTM A240 Type S41500 (UNS S41500) requirements.
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