XM-21 Plate, Bar, Pipe, Steel Strip, Wire, Forgings, Forged Pipe, Forged Plate, Forged Bar, Round Bar, Sheet, Thin Plate, Seamless Pipe, Welded Pipe, Round Steel, Wire Rod, Steel Plate, Coiled Rod, Strip
1.Grade: XM-21
US UNS: S30452
Corresponding Standard: ASTM A 959-2004
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
XM-21 is a commonly used stainless steel with excellent corrosion resistance and mechanical properties. It is composed of iron, chromium, nickel, and other alloying elements and is widely used for components in high- and low-temperature environments. Here's an in-depth look at its characteristics and applications.
2.XM21 Relate Steel Type
| Steel Type | Country Code |
|---|---|
304N2 |
CNS |
0Cr19Ni-10Nb |
GB |
| S30452 | UNS |
SUS304N2 |
JIS |
XM21 |
AISI |
| Category | Type | Grade | Microstructure | Designations |
|---|---|---|---|---|
| Grades | Stainless Steels | XM-21 | Austenite | USA - UNS , SAE J 405 (1998) - Chemical compositions of SAE wrought stainless steels |
| Grade | Standard | Country | Application |
|---|---|---|---|
| A 240 Type XM-21 | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 276 XM-21 | SAE | USA | Stainless Steel Bars and Shapes |
| A 959 Type XM-21 | SAE | USA | Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels |
| SA-276 XM-21 | AMS | USA | Specification for Stainless Steel Bars and Shapes |
| XM-21 | UNS | USA | Chemical compositions of SAE wrought stainless steels |
| A 240 S30452 | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 276 S30452 | SAE | USA | Stainless Steel Bars and Shapes |
| S30452 | AISI | USA | Austenitic Chromium Nickel Stainless Steel |
| SA-240 S30452 | AMS | USA | Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 240 S30452 | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 276 S30452 | SAE | USA | Stainless Steel Bars and Shapes |
| S30452 | AISI | USA | Austenitic Chromium Nickel Stainless Steel |
| SA-240 S30452 | AMS | USA | Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
3.Type XM-21 - Form of Supply
| Product type | Products | Dimension | Processes | Deliver Status |
|---|---|---|---|---|
| Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
| Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
4.XM-21 (S30452) Stainless Steel Characteristics:
Corrosion Resistance: With a high content of chromium and nickel, XM-21 offers excellent corrosion resistance, effectively withstanding oxidation, acidic, and alkaline environments.
Mechanical Properties: XM-21 features high strength and hardness, capable of withstanding tensile, compressive, and bending forces, making it suitable for various mechanical components and structures.
Good Machinability: XM-21 is easily formable and can be shaped and sized through forging, cold drawing, and heat treatment processes.
Low Magnetic Permeability: XM-21 is an austenitic stainless steel with low magnetic permeability, suitable for producing non-magnetic stainless steel components.
Applications:
Chemical Industry: XM-21 is widely used in the chemical industry for corrosion-resistant equipment such as tanks, pipes, and valves.
Food Processing: With its excellent corrosion resistance and food safety properties, XM-21 is commonly used in food processing equipment and containers, such as mixers and storage tanks.
Medical Devices: Due to its biocompatibility and resistance to corrosion, XM-21 is frequently utilized in surgical instruments and implants.
Shipbuilding: XM-21's seawater corrosion resistance makes it suitable for shipbuilding and marine engineering applications, including hulls and marine equipment.
Architectural Decoration: XM-21's smooth, easy-to-clean surface is ideal for indoor and outdoor decorative elements, such as stainless steel handrails and guardrails.
XM-21 stainless steel is highly valued for its corrosion resistance, mechanical properties, and machinability, making it versatile in chemical, food, medical, marine, and architectural applications.