405 Stainless Steel Bar is an aluminum-stabilized ferritic stainless steel bar used for applications requiring moderate corrosion resistance, oxidation resistance, fabrication capability and stable performance in welded or thermal-service conditions.
SAKY STEEL supplies 405 stainless steel bar in round, square, hexagonal and forged forms. Common equivalent designations include UNS S40500, EN 1.4002 and X6CrAl13. Diameter, length, surface finish, machining and inspection requirements can be reviewed according to customer specifications.
Grade: 405 / UNS S40500
Equivalent Grade: EN 1.4002 / X6CrAl13 / SUS 405 Reference Standards: ASTM A276 / ASTM A479 or Agreed Specification Product Forms: Round / Square / Hex / Forged Bar Diameter: 4 mm to 500 mm or Customized Length: 2.5 m / 3 m / 6 m / Required Length Surface: Black / Bright / Polished / Ground Inspection: UT / Hardness / Chemical Analysis / Additional Testing as Required Documentation: MTC / Third-Party Test Report as Agreed Request 405 Stainless Steel Bar Quote| Item | Specification |
|---|---|
| Grade | 405 / UNS S40500 |
| EN Grade | 1.4002 / X6CrAl13 |
| Reference Standards | ASTM A276 / ASTM A479 / Customer Specification |
| Product Forms | Round / Square / Hex / Rectangle / Forged Bar / Billet |
| Diameter / Section | 4 mm to 500 mm or According to Order Requirements |
| Length | 2.5 m / 3 m / 6 m / Cut-to-Length |
| Surface | Black / Bright / Polished / Ground |
| Processing | Cutting / Peeling / Grinding / Machining as Required |
| Inspection | Dimensional / Chemical / Hardness / UT / Additional Testing as Specified |
| Documents | MTC / Inspection Report / Third-Party Report as Required |
| Designation System | Grade |
|---|---|
| AISI | 405 |
| UNS | S40500 |
| EN / Werkstoff | 1.4002 |
| EN Name | X6CrAl13 |
| JIS | SUS 405 |
405 stainless steel contains approximately 12–13% chromium and uses aluminum as a stabilizing addition. The aluminum content is an important characteristic of this grade and distinguishes 405 from many other ferritic stainless steels.
| Grade | C | Si | Mn | P | S | Cr | Al |
|---|---|---|---|---|---|---|---|
| 405 | ≤0.08% | ≤1.00% | ≤1.00% | ≤0.040% | ≤0.030% | 11.5–14.5% | 0.10–0.30% |
| Characteristic | Practical Meaning |
|---|---|
| Ferritic Stainless Steel | 405 belongs to the ferritic stainless steel family and is selected for applications where moderate corrosion resistance and ferritic structure are suitable. |
| Aluminum Stabilization | Aluminum is intentionally added to the grade and contributes to stabilization during thermal exposure and fabrication. |
| Corrosion Resistance | Provides useful resistance to atmospheric exposure, water and mildly corrosive industrial environments. |
| Fabrication | Suitable for forming and fabricated components when the correct processing and welding procedures are selected. |
| Large-Diameter Bar Capability | 405 stainless steel can be supplied in large round-bar and forged-bar sections for machining and industrial component production. |
The following inspection data comes from an actual production batch of X6CrAl13 / 1.4002 stainless steel round bars. The supplied bars were Ø310 × 1200 mm and were inspected by individual heat number.
The results below are provided as an actual production and traceability reference. Final inspection results for new orders are confirmed by the MTC issued for the corresponding production batch.
| Heat No. | Size | Weight | Hardness | Impact | UT | Grain Size |
|---|---|---|---|---|---|---|
| 260201 | Ø310 × 1200 mm | 4420 kg | 130 HB | PASS | PASS | 6.5 |
| 260202 | Ø310 × 1200 mm | 1482 kg | 133 HB | PASS | PASS | 6.0 |
| 260203 | Ø310 × 1200 mm | 2192 kg | 140 HB | PASS | PASS | 6.0 |
| 260269 | Ø310 × 1200 mm | 2196 kg | 138 HB | PASS | PASS | 8.0 |
| 260309 | Ø310 × 1200 mm | 736 kg | 139 HB | PASS | PASS | 7.5 |
Independent third-party testing was performed by SGS on an Ø310 × 1200 mm stainless steel round bar identified as EN 1.4002 / X6CrAl13 / AISI 405.
| Report No. | SHIN2606011201ML01_EN |
|---|---|
| Product | Stainless Steel Round Bar |
| Material | EN 1.4002 / X6CrAl13 / AISI 405 |
| Size | Ø310 × 1200 mm |
| Testing Period | June 10–18, 2026 |
| Test | Actual Result |
|---|---|
| Chemical Composition | C 0.07% · Cr 12.65% · Al 0.13% · Ni 0.19% |
| Brinell Hardness | HBW 5/750: 136 / 137 / 134 |
| Grain Size | Duplex, Wide-Range · No. 4.5 · Range No. 3.0–8.0 |
| Nonmetallic Inclusion | D Thin: 0.5 · A / B / C / D Heavy / DS: 0 |
405 stainless steel bar is used where ferritic stainless steel, moderate corrosion resistance, thermal stability and machinable bar sections are required.
| Heat-Resistant PartsComponents exposed to elevated temperatures | Industrial EquipmentMachined shafts and equipment components | Power EquipmentFabricated and machined thermal-service parts |
| Furnace ComponentsParts for moderate oxidation environments | Machined ComponentsLarge-diameter bar and forged parts | General EngineeringFerritic stainless steel structural components |
Packaging is selected according to bar diameter, unit length, surface finish, total weight and transportation requirements.
• Small and medium bars bundled securely for handling. • Bright or ground surfaces protected against scratching and contamination. • Large-diameter bars secured according to unit weight and lifting requirements. • Grade, heat number, dimensions and batch identification retained for traceability. • Wooden cases, pallets or other export protection can be used according to shipment requirements.405 is an aluminum-stabilized ferritic stainless steel containing approximately 12–13% chromium. Common equivalent designations include UNS S40500, EN 1.4002 and X6CrAl13.
X6CrAl13 / EN 1.4002 is commonly used as the European designation corresponding to the 405 stainless steel family. Purchase specifications should still state the governing standard and required chemistry.
Yes. The actual MTC and SGS case shown on this page documents production and testing of Ø310 × 1200 mm X6CrAl13 stainless steel round bars.
Yes. UT inspection can be arranged when specified. The production batch shown on this page records UT results as PASS for all five listed heat numbers.
Yes. Third-party testing can be arranged according to project requirements. The SGS case shown on this page includes chemical composition, Brinell hardness, grain size and nonmetallic inclusion testing.
Yes. Material traceability documentation can be supplied according to the confirmed order requirements, including heat-number and batch-specific inspection data.
Send your required diameter or section size, length, quantity, surface condition, inspection requirements and destination. SAKY STEEL will review the bar specification and testing requirements before confirming the offer.
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