AISI 1070 High Carbon Steel Bolting Products
AISI 1070 High Carbon Steel is listed in the HIGH CARBON STEEL material family. The reference data below should be checked against the governing product specification, product form and delivery condition before selection or certification.
The reference chemistry table for AISI 1070 High Carbon Steel lists Carbon (C): 0.65 – 0.75%; Silicon (Si): 0.15 – 0.30%; Manganese (Mn): 0.60 – 0.90%; Phosphorus (P): 0.04% Max. Confirm exact limits and analysis tolerances against the governing standard and product form.
The mechanical-property table for AISI 1070 High Carbon Steel lists Tensile Strength: 700 – 920 MPa; Yield Strength: 420 – 600 MPa; Elongation: 9 – 17 %; Hardness: 190 – 260 HB. These are reference entries; supplied condition, dimensions, test method and governing specification control the requirements, and the figures are not design allowables.
No one-to-one Werkstoff number was verified for AISI 1070 High Carbon Steel in the cross-reference sources checked for this update. Confirm any proposed EN alternative against the governing specification.
View Technical Information →Standard identification and material designation information for AISI 1070 High Carbon Steel.
The reference chemistry table lists Carbon (C): 0.65 – 0.75%; Silicon (Si): 0.15 – 0.30%; Manganese (Mn): 0.60 – 0.90%; Phosphorus (P): 0.04% Max. Confirm the governing standard, product analysis tolerances and product form before ordering.
| Element | Symbol | Composition |
|---|---|---|
| Carbon | C | 0.65 – 0.75% |
| Silicon | Si | 0.15 – 0.30% |
| Manganese | Mn | 0.60 – 0.90% |
| Phosphorus | P | 0.04% Max |
| Sulfur | S | 0.05% Max |
| Chromium | Cr | 0.40% Max |
| Nickel | Ni | 0.40% Max |
| Molybdenum | Mo | 0.15% Max |
| Iron | Fe | Balance |
The table reports Tensile Strength: 700 – 920 MPa; Yield Strength: 420 – 600 MPa; Elongation: 9 – 17 %; Hardness: 190 – 260 HB as reference data for AISI 1070 High Carbon Steel. Actual requirements depend on condition, dimensions, test method and specification; these values are not design allowables.
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 700 – 920 | MPa |
| Yield Strength | 420 – 600 | MPa |
| Elongation | 9 – 17 | % |
| Hardness | 190 – 260 | HB |
AISI 1070 High Carbon Steel combines a relatively high carbon level with heat-treatment capability. The selected grade is used where strength, hardness, wear performance or hardenability are important.
The carbon level provides a strong basis for developing hardness and strength.
Heat-treated AISI 1070 can provide useful resilience for spring-type components.
Higher hardness after treatment can improve resistance to abrasive and contact wear.
The grade can be hardened and tempered for a required hardness-toughness balance.
AISI 1070 High Carbon Steel is selected for applications where strength, hardness, wear resistance or controlled hardenability are important.
Used for flat, strip and formed springs in suitable conditions.
Selected for blades and cutting parts where higher hardness is needed.
Used for selected high-carbon wire and resilient components.
Suitable for selected wear-resistant machine components.
Define the target hardness and section size before selecting the heat-treatment cycle.
AISI 1070 can provide a useful balance of hardness and resilience after appropriate treatment.
For critical applications, use the governing material standard and actual mill test data rather than generic property ranges.
No one-to-one Werkstoff number was verified for AISI 1070 High Carbon Steel in the cross-reference sources checked for this update, so this page does not assign a number. Confirm any proposed EN alternative against the applicable product standard and supplier certificate before substitution.
Our engineering team can help you select suitable materials based on operating temperature, pressure and service conditions.