Steel A1018 HSLAS-F Grade 50
ASTM A1018 HSLAS-F Grade 50
A1018 HSLAS-F Grade 50 is a micro-alloyed HSLAS-F (improved formability) sheet steel to ASTM A1018, stocked hot-rolled, hot-rolled pickled-and-oiled and cut-to-length, with 380 MPa yield, 470 MPa tensile, 28 % elongation and 145 HB (79 HRB).
Reference datasheet — A1018 HSLAS-F Grade 50 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 HR condition
A1018 HSLAS-F Grade 50 tempers and conditions
A1018 HSLAS-F Grade 50 is supplied in 2 conditions, soft to hard. HR is the default FabDigit quotes; the values on this page are for it.
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
HRDefault Hot rolled | Standard mill condition for heavy-thickness HSLAS-F coil — pick when the part is blasted, pickled or painted downstream. | 380 | 470 | 28 | 145 HB | 8.6 % IACS |
Hot-rolled, pickled and oiled | Choose when scale-free surface is needed for direct stamping, welding, e-coat or paint without shot blasting. | 380 | 470 | 29 | 143 HB | 8.6 % IACS |
Supply forms, finishes and certifications
Ways A1018 HSLAS-F Grade 50 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
CTL | Cut-to-length sheet/plate from coil | Surface finish |
What is A1018 HSLAS-F Grade 50?
A1018 HSLAS-F Grade 50 is a micro-alloyed HSLAS-F (improved formability) sheet steel to ASTM A1018, stocked hot-rolled, hot-rolled pickled-and-oiled and cut-to-length, with 380 MPa yield, 470 MPa tensile, 28 % elongation and 145 HB (79 HRB). The F-class inclusion control gives it higher formability (score 68) than plain HSLAS 50 at the same strength, which suits deep stampings and body reinforcements. It has no inherent corrosion resistance (score 10) so it must be coated, and A1011 HSLAS Grade 50 is the usual alternative where bend severity is lower. A1018 HSLAS-F Grade 50 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,460°C (2,660 °F). A1018 HSLAS-F Grade 50 has a yield strength of 380 MPa (55.1 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 68% of steel grades. Elongation at break is 28% and the elastic modulus is 205 GPa (29.7 Msi).
What is A1018 HSLAS-F Grade 50 used for?
- appliance panels
- automotive body reinforcements
- furniture stampings
Advantages
- Ductile — tolerates forming and impact — 28%, better than 89% of steel grades
- Readily welded — 85/100, better than 83% of steel grades
- Forms and bends easily — 68/100, better than 83% of steel grades
Limitations
- Hard to polish — 45/100, worse than 84% of steel grades
A1018 HSLAS-F Grade 50 properties
Typical room-temperature values for A1018 HSLAS-F Grade 50-HR; bars are the position among steel grades.
Physical3
A1018 HSLAS-F Grade 50 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,460°C (2,660 °F).
Mechanical16
A1018 HSLAS-F Grade 50 has a yield strength of 380 MPa (55.1 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 68% of steel grades. Elongation at break is 28% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
A1018 HSLAS-F Grade 50 is rated for continuous service to 400°C (752 °F). It conducts heat at 46 W/m·K (26.6 BTU/hr·ft·°F), better than 71% of steel grades. Thermal expansion is 12 µm/m·K (6.67 µin/in·°F).
Electrical3
A1018 HSLAS-F Grade 50 conducts electricity at 8.6 % IACS, better than 66% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (10/100), worse than 86% of steel grades.
Sustainability4
Producing a kilogram of A1018 HSLAS-F Grade 50 takes about 24 MJ of energy and emits 2.1 kg of CO₂ — less than 97% of steel grades. Typical recycled content is 25%.
Manufacturability7
A1018 HSLAS-F Grade 50's machinability is good (58/100, better than 75% of steel grades); weldability excellent (85/100); formability good (68/100).
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. A1018 HSLAS-F Grade 50 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with A1018 HSLAS-F Grade 50
Is A1018 HSLAS-F Grade 50 easy to machine?
Machines like a tough low-carbon steel — moderate speeds, sharp positive-rake tooling and good chip control to fight stringy chips; expect ~60 % of 1212 rates.
Can A1018 HSLAS-F Grade 50 be welded?
Excellent weldability (CE ≈ 0.30–0.38): GMAW/FCAW/RSW with 70-ksi-class filler; keep heat input moderate to avoid HAZ softening and loss of the micro-alloy strength.
Can A1018 HSLAS-F Grade 50 be formed, bent or molded?
Good roll forming and bending for its strength class — allow generous inside bend radii (≈1–2 t) and 6–10° extra springback versus mild steel; bend transverse to rolling direction when possible.
A1018 HSLAS-F Grade 50 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 |
|---|---|---|
| Cheat analysis maximum | ≤ 0.15 | 0.08 |
| Mn | ≤ 1.65 | 1.2 |
| Plow-P for improved formability | ≤ 0.02 | 0.01 |
| Ssulphide shape control / low S is the 'F' requirement | ≤ 0.02 | 0.01 |
| Si | ≤ 0.9 | 0.25 |
| Alaluminium killed | 0.01 – 0.1 | 0.04 |
| Cuwhen copper steel is specified | ≥ 0.2 | 0.25 |
| Nbmicro-alloy, Nb+V+Ti combination per producer practice | ≤ 0.1 | 0.03 |
| Vmicro-alloy | ≤ 0.15 | 0.04 |
| Timicro-alloy / sulphide shape control | ≤ 0.15 | 0.02 |
| N | ≤ 0.01 | 0.01 |
| Fe | balance |
What surface finishes work on A1018 HSLAS-F Grade 50?
No inherent corrosion resistance: blast or pickle off scale, then phosphate + e-coat/paint, hot-dip or electro-galvanize; anodizing not applicable.
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 A1018 HSLAS-F Grade 50 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- ASTM
- A1018-50A1018 HSLAS-F Gr50
How much does A1018 HSLAS-F Grade 50 cost?
A1018 HSLAS-F Grade 50 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.
A1018 HSLAS-F Grade 50 — frequently asked
What is A1018 HSLAS-F Grade 50 used for?
A1018 HSLAS-F Grade 50 is typically used for appliance panels, automotive body reinforcements and furniture stampings. In short: improved-formability HSLA sheet; 28 % elongation at 380 MPa; deep-stamping HSLA grade.
What is the yield strength of A1018 HSLAS-F Grade 50?
A1018 HSLAS-F Grade 50 has a typical yield strength of 380 MPa (55.1 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 68% of steel grades. Strength varies by condition: see the 2 listed tempers.
Is A1018 HSLAS-F Grade 50 easy to machine?
Reasonably — machinability is rated good (58/100, better than 75% of steel grades). Machines like a tough low-carbon steel — moderate speeds, sharp positive-rake tooling and good chip control to fight stringy chips; expect ~60 % of 1212 rates.
Can A1018 HSLAS-F Grade 50 be welded?
Yes — weldability is rated excellent (85/100). Excellent weldability (CE ≈ 0.30–0.38): GMAW/FCAW/RSW with 70-ksi-class filler; keep heat input moderate to avoid HAZ softening and loss of the micro-alloy strength.
What surface finishes work on A1018 HSLAS-F Grade 50?
No inherent corrosion resistance: blast or pickle off scale, then phosphate + e-coat/paint, hot-dip or electro-galvanize; anodizing not applicable.
Can A1018 HSLAS-F Grade 50 be formed, bent or molded?
Good roll forming and bending for its strength class — allow generous inside bend radii (≈1–2 t) and 6–10° extra springback versus mild steel; bend transverse to rolling direction when possible.
What is the maximum service temperature of A1018 HSLAS-F Grade 50?
A1018 HSLAS-F Grade 50 is rated for continuous use to about 400°C (752 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between A1018 HSLAS-F Grade 50-HR and A1018 HSLAS-F Grade 50 HRPO?
HR is the default condition — standard mill condition for heavy-thickness HSLAS-F coil — pick when the part is blasted, pickled or painted downstream. HRPO: choose when scale-free surface is needed for direct stamping, welding, e-coat or paint without shot blasting. Yield strength is 380 MPa in HR versus 380 MPa in HRPO.
How much does A1018 HSLAS-F Grade 50 cost?
A1018 HSLAS-F Grade 50 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
- ASTM A1018/A1018M — Steel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled, Carbon, Commercial, Drawing, Structural, HSLA and HSLA with Improved Formability — ASTM International (2023)
- ASTM A1011/A1011M (companion HSLAS-F grades) — ASTM International (2023)
- ASTM A370 — Mechanical Testing of Steel Products (hardness conversions) — ASTM International (2022)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.19 — Fatigue and Fracture — ASM International (1996)
- worldsteel LCI data for hot-rolled coil — World Steel Association (2023)
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.