Carbon Steel H-11 | UNS# T20811, also known as Tool Steel H11 is a chromium-based steel alloy in the “H” family of steels according to the AISI classification system. One of the more commonly used alloys in the “H” family, H-11 demonstrates excellent impact toughness, excellent resistance to cracking, and thermal fatigue cracking. Because of these desirable traits, H-11 is often used in the aerospace industry for landing gear, blades for rotorcraft and shafts, die-casting dies and similar applications.
Carbon Steel H-11 Specifications:
- AMS: AMS 6485, AMS 6487, AMS 6488
Carbon Steel H-11 product forms offered at all Titanium Industries’ locations:
Please find Titanium Industries’ inventory of Carbon Steel Round Bar here.
Carbon Steel H-11 Applications:
- Aerospace Landing Gear
- Rotorcraft Blades and Shafts
- Die-casting Dies
DISCLAIMER: Alloy data sheets are for reference only, not for design purposes.
| Chemical Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| C 0.38 – 0.43% | Mn 0.20 – 0.40% | Si 0.80 – 1.00% | S 0.015% Max | P 0.015% Max | |||||
| Cr 4.75 – 5.25 % | Mo 1.20 – 1.40% | V 0.40 – 0.60% | Ni 0.25% Max | Cu 0.35% Max | |||||
| Fe Balance | |||||||||
| PHYSICAL PROPERTIES | ||||||
|---|---|---|---|---|---|---|
| Density | Electrical conductivity (% IACS) | Thermal conductivity (BTU-in/hr-ft²-°F) | Specific heat capacity | Thermal expansion (1/°F) | Melting Point (°F) | |
| 0.282 | – | 171 | – | 6.63 | 2600 | |
| Mechanical Properties | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Property | Minimum | Maximum | |||||||
| Yield Strength Range (Rp0.2 Offset) (ksi) | 215 | – | |||||||
| Tensile Strength Range (Rm) (ksi) | 260 | – | |||||||
| Elongation (AL=5 x Ø) | 8% | – | |||||||
| Hardness, Rockwell C | 56 | – | |||||||
| Modulus of Elasticity (ksi) (E): 27500 | |||||||||
| Machineability General Index: 75 – 80% | |||||||||
T.I. Approvals:
Plus a wide range of approvals from most leading OEM’s across Aerospace, Medical, Industrial, and Oil and Gas markets.