Sheffield Gauge Plate is a supplier and stockholder of H11 tool steel, delivering to the UK and worldwide.

H11 tool steel properties

H11 Tool Steel description

H11 tool steel (1.2343) is an electro slag refined hot-work steel and has mainly high wear resistance and resistance to hot cracking. H11, otherwise known as H11 ESR, is a popular grade for its excellent temper resistance and toughness. Due to its versatility, 1.2343 is the most widely used hot-work steel worldwide.


H11 is the most commonly used tool steel in the H series. However, other grades range from H1 to H19. They were developed for their strength and hardness during elevated temperatures. If you’d like to learn more about our tool steel H11 stock, contact us today for a no-obligation chat.


H11 supply

H11 tool steel is supplied in a range of standard forms, such as round bar, sheet, flat bar and plate. Furthermore, if you require non-standard sizes, lengths and thicknesses, speak to our team as we have hire work facilities and equipment to cater to all non-standard sizes, no matter the quantity.



H11 is standard in the aerospace industry, particularly for landing gears, rotor blades and shafts. It is used throughout the aerospace industry due to its resistance to wear, temper and outstanding impact toughness.


Other applications include hot tooling works due to the properties mentioned above, such as dies, hot punches and shear blades. Feel free to contact our tool steel sales team to discuss your requirements.


H11 ground flat stock

We’ve supplied flat ground stock and gauge plate to over 20 countries worldwide, and our high-quality British and European steel leaves our customers happy every time. If you require imperial and metric sizes, we have you covered, view our ground flat stock cost sheet for more information or email us at

Enquire about H11 steel today!


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