Steel 9260 Hot Rolled
Finish state
AISI/SAE 9260 · UNS G92600 · JIS SUP7 · GB 60Si2MnA, 60Si2Mn
Mill supply condition for bars and spring flats that will be hot-coiled or later heat treated; hard and scaled, not for direct use.
Values for the Hot Rolled condition
Other 9260 tempers and conditions
9260 is listed in 9 conditions; see the grade overview at 9260.
Compare all 9 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AnnealedDefault full/spheroidize annealed, softest supply condition | Pick for machining, cold forming or coiling before hardening; lowest hardness and best tool life. | 450 | 770 | 20 | 220 HB | — |
Hot RolledThis page as-rolled bar/flat, untreated | Mill supply condition for bars and spring flats that will be hot-coiled or later heat treated; hard and scaled, not for direct use. | 600 | 1,000 | 12 | 30 HRC | 6.6 % IACS |
austenitised ≈900 °C, air cooled | Use to homogenise structure and refine grain after forging, ahead of final quench and temper. | 620 | 930 | 18 | 27 HRC | 6.6 % IACS |
annealed then cold drawn bar/wire | Choose for close-tolerance bar and spring wire stock that will be coiled cold and then hardened and tempered. | 800 | 950 | 9 | 29 HRC | 6.6 % IACS |
oil quenched, tempered 650 °C | Softest quenched-and-tempered condition; used when machining after heat treatment or maximum ductility is required. | 880 | 1,010 | 15 | 31 HRC | — |
oil quenched, tempered 540 °C | Tough, high-yield condition for torsion bars and heavy sections where impact matters more than peak hardness. | 1,180 | 1,280 | 12 | 40 HRC | — |
Quenched and tempered | The standard working condition for leaf and coil springs: maximum elastic limit with usable toughness (~45–48 HRC). | 1,500 | 1,610 | 8 | 47 HRC | — |
Spring temper with compressive surface treatment | Standard for production leaf/coil springs: peening restores fatigue life lost to decarburisation and surface flaws. | 1,500 | 1,610 | 8 | 47 HRC | 6.4 % IACS |
oil quenched, tempered 315 °C | Near-peak strength with slightly better toughness than a 205 °C temper; watch for temper embrittlement range. | 1,720 | 1,980 | 5 | 53 HRC | 6.6 % IACS |
What is 9260 Hot Rolled?
9260 Hot Rolled is 9260 supplied in the Hot Rolled condition — mill supply condition for bars and spring flats that will be hot-coiled or later heat treated; hard and scaled, not for direct use. 9260 Hot Rolled has a yield strength of 600 MPa (87 ksi) and a tensile strength of 1,000 MPa (145 ksi) — stronger than 77% of steel grades. Elongation at break is 12% and the elastic modulus is 205 GPa (29.7 Msi). 9260 Hot Rolled has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,420°C (2,588 °F). Annealed is the default condition FabDigit quotes; Hot Rolled is available on request or by drawing note.
Advantages
- High strength — 600 MPa (87 ksi), better than 77% of steel grades
Limitations
- Difficult to machine — 33/100, worse than 86% of steel grades
- Limited service temperature — 250°C (482 °F), worse than 85% of steel grades
- Limited ductility — 12%, worse than 84% of steel grades
- Difficult to weld — 20/100, worse than 84% of steel grades
- Low electrical conductivity — 6.6 % IACS, worse than 76% of steel grades
9260 Hot Rolled properties
Typical room-temperature values for 9260 Hot Rolled; 22 are specific to this condition. Other listed values are 9260 reference data and may not represent this condition. Bars are the position among steel grades.
Physical3
9260 Hot Rolled has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,420°C (2,588 °F).
Mechanical14
9260 Hot Rolled has a yield strength of 600 MPa (87 ksi) and a tensile strength of 1,000 MPa (145 ksi) — stronger than 77% of steel grades. Elongation at break is 12% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
9260 Hot Rolled is rated for continuous service to 250°C (482 °F). It conducts heat at 43 W/m·K (24.8 BTU/hr·ft·°F), better than 51% of steel grades. Thermal expansion is 11.5 µm/m·K (6.39 µin/in·°F).
Electrical3
9260 Hot Rolled conducts electricity at 6.6 % IACS, worse than 76% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (11/100), worse than 73% of steel grades.
Sustainability4
Producing a kilogram of 9260 Hot Rolled takes about 26 MJ of energy and emits 2 kg of CO₂ — less than 64% of steel grades. Typical recycled content is 30%.
Manufacturability8
9260 Hot Rolled's machinability is poor (33/100, worse than 86% of steel grades); weldability poor (20/100); formability poor (25/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 9260 Hot Rolled
Is 9260 easy to machine?
Machine only in the annealed/spheroidised state (~55 % of 1212) with rigid setups and sharp carbide; above 45 HRC use grinding, EDM or CBN turning.
Can 9260 be welded?
Poor weldability — carbon equivalent ≈0.9; if unavoidable, preheat 300–400 °C, low-hydrogen consumables, immediate post-weld temper, and accept loss of spring temper in the HAZ.
Can 9260 be formed, bent or molded?
Hot form or coil at 900–1000 °C, or cold coil in the annealed condition then oil quench from 860–880 °C and temper 400–500 °C; protect against decarburisation with controlled atmosphere or salt bath.
What surface finishes work on 9260?
No native corrosion resistance: shot peen then phosphate + oil, paint/powder coat, or Zn/Zn-Ni plate with a 190–220 °C hydrogen-relief bake; do not anodize.
9260 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| CSAE/AISI 9260 heat analysis | 0.56 – 0.64 | 0.6 |
| Siprincipal strengthening/solid-solution element | 1.8 – 2.2 | 2 |
| Mn | 0.75 – 1 | 0.87 |
| P | ≤ 0.04 | — |
| S | ≤ 0.04 | — |
| Fe | balance | — |
9260 Hot Rolled — frequently asked
What is 9260 Hot Rolled used for?
9260 Hot Rolled is typically used for automotive leaf springs, coil springs, torsion bars, heavy-truck suspension springs, spring clips and retaining clips and agricultural tines and harrow springs. In short: premium spring bar.
What is the yield strength of 9260 Hot Rolled?
9260 Hot Rolled has a typical yield strength of 600 MPa (87 ksi) and a tensile strength of 1,000 MPa (145 ksi) — stronger than 77% of steel grades. Strength varies by condition: see the 9 listed tempers.
Is 9260 Hot Rolled easy to machine?
Not especially — machinability is rated poor (33/100, worse than 86% of steel grades). Machine only in the annealed/spheroidised state (~55 % of 1212) with rigid setups and sharp carbide; above 45 HRC use grinding, EDM or CBN turning.
Can 9260 Hot Rolled be welded?
Not readily — weldability is rated poor (20/100). Poor weldability — carbon equivalent ≈0.9; if unavoidable, preheat 300–400 °C, low-hydrogen consumables, immediate post-weld temper, and accept loss of spring temper in the HAZ.
What surface finishes work on 9260 Hot Rolled?
No native corrosion resistance: shot peen then phosphate + oil, paint/powder coat, or Zn/Zn-Ni plate with a 190–220 °C hydrogen-relief bake; do not anodize.
Can 9260 Hot Rolled be formed, bent or molded?
Hot form or coil at 900–1000 °C, or cold coil in the annealed condition then oil quench from 860–880 °C and temper 400–500 °C; protect against decarburisation with controlled atmosphere or salt bath.
What is the maximum service temperature of 9260 Hot Rolled?
9260 Hot Rolled is rated for continuous use to about 250°C (482 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in 9260 Hot Rolled?
Yes — 9260 Hot Rolled is available for CNC machining and sheet metal; every part is priced by an engineer rather than instantly. Upload a STEP file to get a price and a DFM check.
Sources
- SAE J404 — Chemical Compositions of SAE Alloy Steels — SAE International (2021)
- ASTM A29/A29M — General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought — ASTM (2020)
- GB/T 1222 — (60Si2Mn) — SAC (2016)
- JIS G 4801 — Spring steels (SUP7) — JSA (2011)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.4 — Heat Treating — ASM International (1991)
- SAE HS-788 Spring Design Manual — SAE International (1996)
- Mysteel / SMM (2026)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.