ASTM A519 1541 High Manganese Seamless Tube Supplier USA
ASTM A519 1541 seamless tube is a resulfurized, high manganese carbon steel mechanical tubing to ASTM A519 specification. AISI 1541, SAE 1541 seamless tube supplier grade, and UNS G15410 tubing, are also known as Grade 1541. Grade 1541 is a medium carbon steel with a higher level of manganese content (1.35-1.65%) than other medium carbon grades. This sole metallurgical change also increases hardenability and machinability - the preferred choice for CNC precision parts that require a higher tensile strength than is offered by AISI 1041. USA Piping Solution offers AISI 1541 mechanical tubing in the cold drawn seamless (CDS) and hot-finished condition with mill test reports. We also carry 1541 CDS tube in the cold drawn seamless condition as part of its ASTM A519 Seamless Mechanical Tubing program. CDS finish provides the narrowest bore tolerances and smoothest outside diameter, allowing the least amount of finishing stock to be removed and shortest cycle times in machining precision components.
ASTM A519 Grade 1541 Specification
The table below summarizes the governing specification parameters for ASTM A519 Grade 1541 seamless mechanical tube, including the ASME equivalent designation used in pressure equipment design.
| Parameter | Details |
|---|---|
| Specification | ASTM A519 |
| ASME Equivalent | ASME SA519 |
| Grade | 1541 |
| Common Designations | AISI 1541, SAE 1541, UNS G15410 |
| Steel Type | Carbon Steel, Resulfurized, 15xx High Manganese Series |
| Finish | Hot Finished (HF) and Cold Drawn Seamless (CDS) |
| OD Size Range | 0.375 in to 10.750 in (9.5 mm to 273 mm) |
| Wall Thickness Tolerance | Max 12.5% under nominal (CDS) | Max 15% (HF) |
| Length | Random, fixed, or cut to length as required |
| End Condition | Plain ends, clean square cut; deburring on request |
| Test Certificate | EN 10204 3.1 Mill Test Report |
ASTM A519 1541 vs 1041 Comparison
For buyers deciding between ASTM A519 1041 Seamless Tube and Grade 1541, the choice comes down to two factors: the required strength level and the importance of consistent through-hardening. The comparison table below covers all critical selection parameters side by side.
| Parameter | Grade | 1041 | 1541 |
|---|---|---|---|
| Mn Content | Manganese % | 0.60 to 0.90% | 1.35 to 1.65% |
| Sulfur % | S % | No minimum | 0.040 to 0.050% (intentional) |
| Machinability | Rating | 70% of B1112 | 78 to 80% of B1112 |
| UTS Annealed | MPa / ksi | 570 MPa / 83 ksi | 620 MPa / 90 ksi |
| Hardenability | Depth | Moderate | High |
| Typical Applications | End Use | General machined components, light duty shafts | CNC turned parts, higher load shafts, gears needing surface hardness |
Grade 1541 offers similar strength to ASTM A519 1045 Seamless Tube in the annealed condition but surpasses 1045 on machinability due to the resulfurized composition. This positions 1541 as the optimal grade where components need both high machinability and post-machining heat treatment to reach surface hardness targets.
ASTM A519 Grade 1541 Applications
Grade 1541 AISI 1541 mechanical tubing targets applications where Grade 1041 delivers insufficient strength or where hardenability requirements exceed what standard medium-carbon grades can achieve. Common end uses include:
- Precision CNC turned shafts and spindles requiring consistent case depth after induction hardening or through-hardening
- Hydraulic cylinder rods and actuator components where a combination of surface hardness and good machinability cuts manufacturing cost
- High strength fastener bodies and studs for structural and mechanical assemblies
- Gear blanks and pinion shafts where elevated Mn supports deeper hardness penetration without alloy steel costs
- Automotive transmission and drivetrain components needing tight dimensional control from CDS tube stock
- Power generation equipment shafts and coupling sleeves operating under cyclic load conditions
A519 Grade 1541 free machining properties also make it preferred for high production screw machine work where tool change frequency directly impacts unit cost. The elevated sulfur promotes short, brittle chips that clear tool faces cleanly, enabling higher cutting speeds than non-resulfurized grades at the same carbon level. For additional grade options, see the Alloy Steel Seamless Pipes and Tubes range for alloy-enhanced alternatives where hardenability requirements exceed what Grade 1541 can provide.
Other ASTM A519 Grades
USA Piping Solution supplies the complete range of ASTM A519 seamless mechanical tube grades. The table below indexes the most commonly specified grades with their primary characteristics.
| Grade | Type | Carbon % | Key Characteristic |
|---|---|---|---|
| 1018 | Low Carbon | 0.15 to 0.20 | High ductility, excellent weldability |
| 1026 | Low Carbon | 0.22 to 0.28 | Good formability, moderate strength |
| 1045 | Medium Carbon | 0.43 to 0.50 | High strength, general mechanical use |
| 1041 | Medium Carbon | 0.36 to 0.44 | Standard grade for machined components |
| 1541 | High Mn Resulfurized | 0.36 to 0.44 | High hardenability, improved machinability over 1041 |
| 4130 | Cr Mo Alloy | 0.28 to 0.33 | High strength, heat resistant |
| 4140 | Cr Mo Alloy | 0.38 to 0.43 | Superior hardenability and toughness |
For the full grade listing and hub page, visit ASTM A519 Seamless Mechanical Tubing. For the resulfurized family pair, see ASTM A519 1041 Seamless Tube.