Steel B1500HS · additive grade
Steel B1500HS-HS
Properties of the HS condition, compared with the other B1500HS tempers.
The in-service condition: austenitize ~900–950 °C, form and quench in the die for ~1500 MPa crash-resistant parts.
What is B1500HS-HS?
B1500HS-HS is B1500HS in the HS grade — the in-service condition: austenitize ~900–950 °C, form and quench in the die for ~1500 MPa crash-resistant parts. B1500HS-HS has a yield strength of 1,150 MPa (167 ksi) and a tensile strength of 1,550 MPa (225 ksi) — stronger than 94% of steel grades. Elongation at break is 6% and the elastic modulus is 207 GPa (30 Msi). B1500HS-HS has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,490°C (2,714 °F). CR is the default condition FabDigit quotes; HS is available on request or by drawing note.
Advantages
- High strength — 1,150 MPa (167 ksi), better than 94% of steel grades
Limitations
- Limited ductility — 6%, worse than 98% of steel grades
- Difficult to machine — 15/100, worse than 98% of steel grades
- Limited formability — 10/100, worse than 94% of steel grades
- Limited service temperature — 200°C (392 °F), worse than 93% of steel grades
- Hard to polish — 45/100, worse than 84% of steel grades
B1500HS-HS properties
Typical room-temperature values for B1500HS-HS — 16 properties are specific to this condition; the rest are grade-level values shared by every B1500HS temper. Each bar shows where the value sits among the steel grades in FabDigit's library — further right is higher.
Physical3
B1500HS-HS has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,490°C (2,714 °F).
Mechanical13
B1500HS-HS has a yield strength of 1,150 MPa (167 ksi) and a tensile strength of 1,550 MPa (225 ksi) — stronger than 94% of steel grades. Elongation at break is 6% and the elastic modulus is 207 GPa (30 Msi).
Thermal6
B1500HS-HS is rated for continuous service to 200°C (392 °F). It conducts heat at 30 W/m·K (17.3 BTU/hr·ft·°F), worse than 83% of steel grades. Thermal expansion is 12.5 µm/m·K (6.94 µin/in·°F).
Electrical3
B1500HS-HS conducts electricity at 8 % IACS, better than 55% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (12/100), worse than 53% of steel grades.
Sustainability4
Producing a kilogram of B1500HS-HS takes about 32 MJ of energy and emits 2.3 kg of CO₂ — more than 70% of steel grades. Typical recycled content is 20%.
Manufacturability7
B1500HS-HS's machinability is poor (15/100, worse than 98% of steel grades); weldability good (55/100); formability not recommended (10/100).
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Other B1500HS tempers and conditions
B1500HS is also supplied in 3 other conditions. The full side-by-side table is on the B1500HS overview.
- CRDefaultStandard mill supply condition for blanking and tool trials before austenitizing and press hardening.380 MPa yield · 170 HB
- HSThe in-service condition: austenitize ~900–950 °C, form and quench in the die for ~1500 MPa crash-resistant parts.1,150 MPa yield · 48 HRC
Working with B1500HS-HS
Is B1500HS easy to machine?
Soft CR condition machines like ordinary C-Mn sheet; after press hardening (≈480 HV) use laser cutting or CBN/carbide with rigid setups — mechanical trimming causes rapid tool wear and edge cracking.
Can B1500HS be welded?
Resistance spot welding is the production route (Al-Si coating needs higher current/longer weld time); avoid heat inputs that temper the martensite and watch HAZ softening in laser welding.
Can B1500HS be formed, bent or molded?
Cold form only in the as-delivered state; final geometry is made by hot stamping at 900–950 °C austenitizing with die quench at >27 °C/s cooling for full martensite.
What surface finishes work on B1500HS?
Al-Si coated parts go straight to phosphate-free pretreatment and cathodic e-coat; bare hot-stamped parts must be shot-blasted to remove scale then coated, and delayed hydrogen cracking risk limits acid pickling and electroplating.
B1500HS 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 |
|---|---|---|
| C | 0.2 – 0.25 | 0.23 |
| Si | 0.15 – 0.35 | 0.25 |
| Mn | 1.1 – 1.4 | 1.25 |
| P | ≤ 0.03 | 0.01 |
| S | ≤ 0.01 | 0 |
| Crhardenability | 0.15 – 0.35 | 0.22 |
| Aldeoxidation | 0.02 – 0.06 | 0.04 |
| Tifixes N to protect boron | 0.02 – 0.05 | 0.04 |
| B | 0 – 0.01 | 0 |
| N | ≤ 0.01 | 0.01 |
| Fe | balance | — |
B1500HS-HS — frequently asked
What is B1500HS-HS used for?
B1500HS-HS is typically used for A- and B-pillar reinforcements, door impact beams, bumper beams, roof rails and roof bows, tunnel and sill reinforcements and front and rear crash boxes. In short: hot-stamping boron sheet.
What is the yield strength of B1500HS-HS?
B1500HS-HS has a typical yield strength of 1,150 MPa (167 ksi) and a tensile strength of 1,550 MPa (225 ksi) — stronger than 94% of steel grades. Strength varies by condition: see the 4 listed tempers.
Is B1500HS-HS easy to machine?
Not especially — machinability is rated poor (15/100, worse than 98% of steel grades). Soft CR condition machines like ordinary C-Mn sheet; after press hardening (≈480 HV) use laser cutting or CBN/carbide with rigid setups — mechanical trimming causes rapid tool wear and edge cracking.
Can B1500HS-HS be welded?
Yes — weldability is rated good (55/100). Resistance spot welding is the production route (Al-Si coating needs higher current/longer weld time); avoid heat inputs that temper the martensite and watch HAZ softening in laser welding.
What surface finishes work on B1500HS-HS?
Al-Si coated parts go straight to phosphate-free pretreatment and cathodic e-coat; bare hot-stamped parts must be shot-blasted to remove scale then coated, and delayed hydrogen cracking risk limits acid pickling and electroplating.
Can B1500HS-HS be formed, bent or molded?
Cold form only in the as-delivered state; final geometry is made by hot stamping at 900–950 °C austenitizing with die quench at >27 °C/s cooling for full martensite.
What is the maximum service temperature of B1500HS-HS?
B1500HS-HS is rated for continuous use to about 200°C (392 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between B1500HS-CR and B1500HS-HS?
CR is the default condition — standard mill supply condition for blanking and tool trials before austenitizing and press hardening. HS: the in-service condition: austenitize ~900–950 °C, form and quench in the die for ~1500 MPa crash-resistant parts. Yield strength is 380 MPa in CR versus 1,150 MPa in HS.
Can FabDigit make parts in B1500HS-HS?
Yes — B1500HS-HS is available for sheet metal with instant online pricing. Upload a STEP file to get a price and a DFM check.
Sources
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- Hot Stamping of Ultra High Strength Steels (press hardening 22MnB5 data) — Springer (2021)
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.