405 Stainless Steel Bar
Short Description:
405 Stainless Steel Bar is an aluminum-stabilized ferritic stainless steel supplied as round bar and custom bar products. SAKY STEEL supplies 405 / UNS S40500 / X6CrAl13 / 1.4002 bars with custom dimensions, machining, UT inspection, MTC and third-party testing available for project requirements.
UT Inspection Automatic 405 round bar:
While not as corrosion-resistant as the austenitic stainless steels (e.g., 304, 316), 405 stainless steel offers good resistance to atmospheric corrosion, water, and mild chemical environments.It has fair heat resistance, but it may not be suitable for high-temperature applications compared to some other stainless steel grades.It can be welded using common welding techniques, but preheating and post-weld annealing may be necessary to avoid cracking.405 stainless steel is used in applications where moderate corrosion resistance and good formability are required. Common applications include automotive exhaust systems, heat exchangers, and architectural components.
405 Stainless Steel Bar Overview
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.
405 Stainless Steel Bar Quick Information
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
405 Stainless Steel Bar Specifications
| 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 |
405 Stainless Steel Equivalent Grades
| Designation System | Grade |
|---|---|
| AISI | 405 |
| UNS | S40500 |
| EN / Werkstoff | 1.4002 |
| EN Name | X6CrAl13 |
| JIS | SUS 405 |
405 Stainless Steel Chemical Composition
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% |
405 Stainless Steel Material Characteristics
| 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. |
Actual MTC & Batch Inspection Results
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 |
Production Batch SummaryFive heat numbers are recorded for this Ø310 × 1200 mm batch. Hardness results range from 130 to 140 HB, while the listed impact and ultrasonic inspection results are recorded as PASS.
SGS Third-Party Test Report
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 |
Key SGS Test Results
| 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 |
Third-Party VerificationThe SGS report provides independent chemical composition, Brinell hardness, grain-size and nonmetallic-inclusion results for the tested X6CrAl13 / AISI 405 round-bar sample. These results apply to the tested sample; future production batches are verified against their corresponding inspection documents.
Applications of 405 Stainless Steel Bar
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 |
405 Stainless Steel Bar Packaging
Packaging is selected according to bar diameter, unit length, surface finish, total weight and transportation requirements.
Frequently Asked Questions
What is 405 stainless steel?
405 is an aluminum-stabilized ferritic stainless steel containing approximately 12–13% chromium. Common equivalent designations include UNS S40500, EN 1.4002 and X6CrAl13.
Is X6CrAl13 the same as AISI 405?
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.
Can large-diameter 405 stainless steel round bars be supplied?
Yes. The actual MTC and SGS case shown on this page documents production and testing of Ø310 × 1200 mm X6CrAl13 stainless steel round bars.
Can ultrasonic testing be provided?
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.
Is third-party testing available?
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.
Can MTC be supplied with 405 stainless steel bar?
Yes. Material traceability documentation can be supplied according to the confirmed order requirements, including heat-number and batch-specific inspection data.
Request a 405 Stainless Steel Bar Quote
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.
