Steel 1113
AISI/SAE 1113 · UNS G11130
1113 (UNS G11130, also listed as Y20) is a higher-sulfur resulfurized carbon steel in the AISI/SAE 11xx family, formulated for maximum chip breakage on automatic lathes.
Reference datasheet — 1113 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the CD condition
1113 tempers and conditions
1113 is supplied in 6 conditions, soft to hard. CD is the default FabDigit quotes; the values on this page are for it.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Choose the subcritical or full anneal for cold heading, deep machining or whenever the lowest hardness (111 HB) is required; strength is the lowest at 225 MPa yield but ductility reaches 30 %. | 225 | 395 | 30 | 111 HB | 11.5 % IACS |
Hot rolled | Pick the as-hot-rolled bar as the cheapest stock for heavy roughing cuts or as feed for cold drawing; tolerance and surface are poorer and yield is only 235 MPa. | 235 | 425 | 25 | 121 HB | — |
Normalized | Specify normalizing, austenitize and air cool, when forgings or coarse-structured bar must have their grain refined and properties evened out before machining; 430 MPa tensile at 126 HB. | 250 | 430 | 27 | 126 HB | 10.8 % IACS |
Carburized & Quenched | Use carburizing and quenching when a low-carbon core needs a wear-resistant 60 HRC case for pins, bushings and small gears; the core stays soft and overall toughness remains limited. | 350 | 550 | 12 | 60 HRC | 10.5 % IACS |
Cold Drawn, Stress Relieved | Use bar that is cold drawn then given a low-temperature stress relief for slender or asymmetrically machined parts prone to distortion; yield eases to 385 MPa in exchange. | 385 | 480 | 13 | 163 HB | 10.8 % IACS |
CDDefault Cold drawn | Choose as-drawn cold drawn bar for automatic-lathe work: best size accuracy, surface finish and short chips, at 415 MPa yield but only 10% elongation. | 415 | 495 | 10 | 170 HB | — |
Supply forms, finishes and certifications
Ways 1113 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
TGP | Turned, Ground & Polished | Surface finish |
What is 1113?
1113 (UNS G11130, also listed as Y20) is a higher-sulfur resulfurized carbon steel in the AISI/SAE 11xx family, formulated for maximum chip breakage on automatic lathes. It gives better chip control than 1112 at a machinability score of 92 — roughly 135% on the scale where 1212 = 100% — with default cold-drawn values of 415 MPa yield, 495 MPa tensile, 10% elongation and 170 HB (87 HRB). Stock forms are CD, HR, stress-relieved, TGP, annealed and normalised bar. The sulfide content costs weldability, transverse ductility and polish quality; 1215 is the nearest alternative when higher production speed is needed. 1113 has a density of 7.87 g/cm³ (0.284 lb/in³), heavier than 92% of steel grades. It melts at 1,420°C (2,588 °F). 1113 has a yield strength of 415 MPa (60.2 ksi) and a tensile strength of 495 MPa (71.8 ksi) — weaker than 56% of steel grades. Elongation at break is 10% and the elastic modulus is 200 GPa (29 Msi).
What is 1113 used for?
- Screw machine parts
- Fittings
- Small shafts
Advantages
- Easy to machine — 92/100, better than 99% of steel grades
- Conducts heat well — 51.9 W/m·K (30 BTU/hr·ft·°F), better than 96% of steel grades
- High electrical conductivity — 10.8 % IACS, better than 94% of steel grades
- Low embodied carbon — 1.9 kg CO₂/kg, better than 92% of steel grades
Limitations
- Hard to polish — 35/100, worse than 99% of steel grades
- Limited ductility — 10%, worse than 91% of steel grades
- Difficult to weld — 15/100, worse than 91% of steel grades
1113 properties
Typical room-temperature values for 1113-CD; bars are the position among steel grades.
Physical3
1113 has a density of 7.87 g/cm³ (0.284 lb/in³), heavier than 92% of steel grades. It melts at 1,420°C (2,588 °F).
Mechanical13
1113 has a yield strength of 415 MPa (60.2 ksi) and a tensile strength of 495 MPa (71.8 ksi) — weaker than 56% of steel grades. Elongation at break is 10% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
1113 is rated for continuous service to 350°C (662 °F). It conducts heat at 51.9 W/m·K (30 BTU/hr·ft·°F), better than 96% of steel grades. Thermal expansion is 11.9 µm/m·K (6.61 µin/in·°F).
Electrical3
1113 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 1113 takes about 25 MJ of energy and emits 1.9 kg of CO₂ — less than 82% of steel grades. Typical recycled content is 30%.
Manufacturability7
1113's machinability is excellent (92/100, better than 99% of steel grades); weldability poor (15/100); formability poor (25/100).
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. 1113 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1113
Is 1113 easy to machine?
One of the best-cutting grades in the 11xx series — about 135% where 1212 = 100%. High-speed automatic lathes can run heavy feeds with short, brittle chips; watch for sulfide-related surface tearing and low transverse properties.
Can 1113 be welded?
High sulfur and phosphorus cause hot cracking and porosity, so welding is generally not recommended. If a joint is unavoidable, use low-hydrogen consumables, preheat, and accept reduced strength and toughness.
Can 1113 be formed, bent or molded?
Cold heading, bending and knurling capability is limited because MnS inclusions are aligned with the rolling direction and split under transverse bending. Anneal before forming and use larger bend radii.
1113 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 J403 max | ≤ 0.13 | 0.1 |
| Mn | 0.7 – 1 | 0.85 |
| Pintentionally high for chip brittleness | 0.07 – 0.12 | 0.09 |
| Shighest-S grade of the 11xx series | 0.24 – 0.33 | 0.28 |
| Fe | balance |
What surface finishes work on 1113?
No corrosion resistance — zinc plating, nickel or chrome plating, black oxide, or phosphate + oil is required. Remove sulfide residue thoroughly before plating to avoid blistering; inclusions limit mirror polishing.
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).
Organic Coating
Black / Phosphate
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Steel 1113 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- G11130
- Similar grades
- Y20
How much does 1113 cost?
1113 is a budget-cost steel ($), cheaper than about 90% 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.
1113 — frequently asked
What is 1113 used for?
1113 is typically used for screw machine parts, fittings and small shafts. In short: fastest-cutting 11xx grade; about 135% of 1212; poor transverse properties.
What is the yield strength of 1113?
1113 has a typical yield strength of 415 MPa (60.2 ksi) and a tensile strength of 495 MPa (71.8 ksi) — weaker than 56% of steel grades. Strength varies by condition: see the 6 listed tempers.
Is 1113 easy to machine?
Yes — machinability is rated excellent (92/100, better than 99% of steel grades). One of the best-cutting grades in the 11xx series — about 135% where 1212 = 100%. High-speed automatic lathes can run heavy feeds with short, brittle chips; watch for sulfide-related surface tearing and low transverse properties.
Can 1113 be welded?
Not readily — weldability is rated poor (15/100). High sulfur and phosphorus cause hot cracking and porosity, so welding is generally not recommended. If a joint is unavoidable, use low-hydrogen consumables, preheat, and accept reduced strength and toughness.
What surface finishes work on 1113?
No corrosion resistance — zinc plating, nickel or chrome plating, black oxide, or phosphate + oil is required. Remove sulfide residue thoroughly before plating to avoid blistering; inclusions limit mirror polishing.
Can 1113 be formed, bent or molded?
Cold heading, bending and knurling capability is limited because MnS inclusions are aligned with the rolling direction and split under transverse bending. Anneal before forming and use larger bend radii.
What is the maximum service temperature of 1113?
1113 is rated for continuous use to about 350°C (662 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 1113-CD and 1113-ANN?
CD is the default condition — choose as-drawn cold drawn bar for automatic-lathe work: best size accuracy, surface finish and short chips, at 415 MPa yield but only 10% elongation. ANN: choose the subcritical or full anneal for cold heading, deep machining or whenever the lowest hardness (111 HB) is required; strength is the lowest at 225 MPa yield but ductility reaches 30 %. Yield strength is 415 MPa in CD versus 225 MPa in ANN.
How much does 1113 cost?
1113 is a budget-cost steel ($), cheaper than about 90% 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.
Sources
- SAE J403 — Chemical Compositions of SAE Carbon Steels — SAE International (2014)
- ASTM A108 — Steel Bar, Carbon and Alloy, Cold-Finished — ASTM (2018)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.16 — Machining — ASM International (1989)
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.