Steel 1035
AISI/SAE 1035 · UNS G10350 · EN C35, 1.0501 · JIS S35C
1035 is a medium-carbon (~0.35 % C) unalloyed structural steel, equivalent to JIS S35C and DIN C35 (1.0501), supplied as hot-rolled or cold-drawn bar, plate and forging stock.
Values for the HR condition
1035 tempers and conditions
1035 is supplied in 7 conditions, soft to hard. HR is the default FabDigit quotes; the values on this page are for it.
Compare all 7 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
full/subcritical anneal (approx. 800–860 °C, slow cool) | Softest condition; use before heavy cold forming, deep machining or as a stress-free base for later hardening. | 270 | 500 | 30 | 143 HB | — |
HRDefault Hot rolled | Default stock condition for bar, plate and forging blanks where scale and ±loose tolerance are acceptable. | 320 | 585 | 18 | 163 HB | — |
approx. 870 °C, air cooled | Standard condition for forgings and weldments: uniform fine grain, good strength/toughness balance without quench distortion. | 345 | 550 | 28 | 163 HB | — |
Cold rolled | Choose for thin sheet/strip needing a smooth bright surface and close thickness tolerance; low ductility, form with care. | 430 | 530 | 11 | 155 HB | 10.5 % IACS |
Cold drawn | Pick for shafts, pins and screw-machine work needing higher yield, bright surface and h9/h11 size tolerance without machining. | 460 | 550 | 12 | 163 HB | — |
Quenched and tempered | Use for loaded shafts, gears blanks, couplings and fasteners up to ~40 mm section where 550–800 MPa strength with usable toughness is required. | 550 | 750 | 18 | 20 HRC | — |
Induction hardened | Select when a wear-resistant 50–58 HRC skin is needed on a tough normalized or Q&T core, e.g. shaft journals and guide rails. | 550 | 750 | 16 | 54 HRC | 9.5 % IACS |
What is 1035?
1035 is a medium-carbon (~0.35 % C) unalloyed structural steel, equivalent to JIS S35C and DIN C35 (1.0501), supplied as hot-rolled or cold-drawn bar, plate and forging stock. It is chosen when plain low-carbon steel is too weak but full alloy steel is unnecessary: it gives 550–800 MPa tensile strength after normalizing or quench-and-temper, machines and forges readily, and can be induction- or flame-hardened for wear surfaces. Limits are poor hardenability in sections over ~25–40 mm, only fair weldability (preheat and low-hydrogen practice needed above ~20 mm), and essentially no corrosion resistance without coating. 1035 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,425°C (2,597 °F). 1035 has a yield strength of 320 MPa (46.4 ksi) and a tensile strength of 585 MPa (84.8 ksi) — weaker than 81% of steel grades. Elongation at break is 18% and the elastic modulus is 205 GPa (29.7 Msi).
What is 1035 used for?
- Forged gears
- Hand tools
- Bolts
Advantages
- High electrical conductivity — 10.8 % IACS, better than 94% of steel grades
- Conducts heat well — 49 W/m·K (28.3 BTU/hr·ft·°F), better than 83% of steel grades
Limitations
- Low strength — 320 MPa (46.4 ksi), worse than 81% of steel grades
- Low fracture toughness — 60 MPa·√m (54.6 ksi·√in), worse than 78% of steel grades
1035 properties
Typical room-temperature values for 1035-HR; bars are the position among steel grades.
Physical3
1035 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,425°C (2,597 °F).
Mechanical16
1035 has a yield strength of 320 MPa (46.4 ksi) and a tensile strength of 585 MPa (84.8 ksi) — weaker than 81% of steel grades. Elongation at break is 18% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
1035 is rated for continuous service to 425°C (797 °F). It conducts heat at 49 W/m·K (28.3 BTU/hr·ft·°F), better than 83% of steel grades. Thermal expansion is 11.9 µm/m·K (6.61 µin/in·°F).
Electrical3
1035 conducts electricity at 10.8 % IACS, better than 94% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (10/100), worse than 86% of steel grades.
Sustainability4
Producing a kilogram of 1035 takes about 25 MJ of energy and emits 2 kg of CO₂ — less than 82% of steel grades. Typical recycled content is 30%.
Manufacturability6
1035's machinability is good (60/100, better than 83% of steel grades); weldability good (55/100); formability fair (50/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the steel family
Yield strength against density for every steel grade FabDigit runs. 1035 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1035
Is 1035 easy to machine?
Machines well at ~65 % of 1212 with carbide or HSS; normalized or Q&T structure gives cleaner chips than annealed, and free-cutting is limited by low sulphur.
Can 1035 be welded?
Weldable by SMAW/GMAW with low-hydrogen consumables; preheat 100–200 °C for sections above ~20 mm and post-weld stress relieve to avoid HAZ hardening and cracking.
Can 1035 be formed, bent or molded?
Hot forges readily at 1100–1200 °C; cold bending only in annealed/hot-rolled state with generous radii (≥2t), since 0.35 % C limits cold formability.
Manufacturability
The process limits FabDigit applies to 1035. Every 1035 part is priced by an engineer; design inside these and the quote comes back without a redesign loop.
CNC machining
| Machinability | Better60 / 100 |
|---|---|
| ISO material group | P.1 |
| Cutting speed (rough / finish) | 220 / 260 m/min |
| Minimum wall | 0.8 mm |
| Minimum internal radius | 1 mm |
| Drill depth limit | 5× diameter |
| Best surface (machined / polished) | Ra 1.6 / — |
| Hardenable after machining | No |
Sheet metal
| Formability | Better50 / 100 |
|---|---|
| Weldability | Better55 / 100 |
1035 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 1035; JIS S35C 0.32–0.38 | 0.32 – 0.38 | 0.35 |
| Mn | 0.6 – 0.9 | 0.75 |
| SiNot specified for SAE bar; per JIS S35C, DIN C35, GB/T 699 grade 35 | 0.15 – 0.35 | 0.25 |
| P | ≤ 0.04 | |
| Smax (SAE); 0.035 max per JIS/GB | ≤ 0.05 | |
| Curesidual limit, GB/T 699 | ≤ 0.25 | |
| Niresidual | ≤ 0.25 | |
| Crresidual | ≤ 0.25 | |
| Fe | balance |
What surface finishes work on 1035?
No inherent corrosion protection — specify phosphate + oil, zinc plate, blackening or paint; takes chrome plating, nitriding and induction hardening well and polishes to a fair bright finish.
Surface treatments FabDigit runs on steel parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Plating
CVD Coating
Black / Phosphate
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Steel 1035 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
How much does 1035 cost?
1035 is a budget-cost steel ($), cheaper than about 98% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
1035 — frequently asked
What is 1035 used for?
1035 is typically used for forged gears, hand tools and bolts. In short: standard carbon steel.
What is the yield strength of 1035?
1035 has a typical yield strength of 320 MPa (46.4 ksi) and a tensile strength of 585 MPa (84.8 ksi) — weaker than 81% of steel grades. Strength varies by condition: see the 7 listed tempers.
Is 1035 easy to machine?
Reasonably — machinability is rated good (60/100, better than 83% of steel grades). Machines well at ~65 % of 1212 with carbide or HSS; normalized or Q&T structure gives cleaner chips than annealed, and free-cutting is limited by low sulphur.
Can 1035 be welded?
Yes — weldability is rated good (55/100). Weldable by SMAW/GMAW with low-hydrogen consumables; preheat 100–200 °C for sections above ~20 mm and post-weld stress relieve to avoid HAZ hardening and cracking.
What surface finishes work on 1035?
No inherent corrosion protection — specify phosphate + oil, zinc plate, blackening or paint; takes chrome plating, nitriding and induction hardening well and polishes to a fair bright finish.
Can 1035 be formed, bent or molded?
Hot forges readily at 1100–1200 °C; cold bending only in annealed/hot-rolled state with generous radii (≥2t), since 0.35 % C limits cold formability.
What is the maximum service temperature of 1035?
1035 is rated for continuous use to about 425°C (797 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 1035-HR and 1035-IH?
HR is the default condition — default stock condition for bar, plate and forging blanks where scale and ±loose tolerance are acceptable. IH: select when a wear-resistant 50–58 HRC skin is needed on a tough normalized or Q&T core, e.g. shaft journals and guide rails. Yield strength is 320 MPa in HR versus 550 MPa in IH.
How much does 1035 cost?
1035 is a budget-cost steel ($), cheaper than about 98% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Can FabDigit make parts in 1035?
Yes — 1035 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 J403 Chemical Compositions of SAE Carbon Steels — SAE International (2014)
- ASTM A29/A29M Steel Bars, Carbon and Alloy, Hot-Wrought — ASTM (2020)
- JIS G 4051 Carbon steels for machine structural use (S35C) — JSA (2016)
- EN 10083-2 / DIN 17200 C35 (1.0501) — CEN (2006)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels — ASM International (1990)
- ASM Handbook Vol.16 — Machining — ASM International (1989)
- Carbon steel LCI and property datasets — worldsteel / CES EduPack (2022)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.