Do you need custom fasteners created with Steel Specials H13? Since our inception, Vegas Fastener Group has met every challenge of providing Quality, Timely, Cost-effective solutions for specialty fastener applications. Every product is built to your specifications, using your prints if necessary.

Below are the technical specifications of the Steel Specials H13 Bar Stock we have available to meet your needs.

AISI Type H13 Hot Work Tool Steel, air or oil quenched from 995-1025°C

Subcategory: Hot Work Steel; Metal; Tool Steel

Key Words: UNS T20813, ASTM A681, FED QQ-T-570, BS 4659 BH13, BS 4659 H13, BS EN ISO 4957 :2000 X40CrMoV5-1, Werkstoff 1.2344

Component Wt. %
C 0.32 – 0.4
Cr 5.13 – 5.25
Fe Min 90.95
Mo 1.33 – 1.4
Si 1
V 1

Material Notes:
Iron content is calculated as a remainder. High hardenability, excellent wear resistance and hot toughness. H13 has good thermal shock resistance and will tolerate some water cooling in service. Nitriding will improve hardness, but can diminish shock resistance if hardened layer is too thick. Electroslag Remelted (ESR) H13 has greater homogeneity and an exceptionally fine structure, resulting in improved machinability, polishability and high temperature tensile strength.

Applications: hot work applications: pressure die casting tools, extrusion tools, forging dies, hot shear blades, stamping dies, plastic molds. ESR H13 is great for aluminium die-casting tools and pastic mold tools requiring a very high polish.

Weldability: Pre and Post-heating recommended, can be welded with oxy-acetylene, inert shielded gas and shielded metal arc; Filler should be similar to the base metal.

Physical Properties Metric English Comments
Density 7.8 g/cc 0.282 lb/in³
Mechanical Properties
Hardness, Knoop 570 570 Converted from Rockwell C Hardness.
Hardness, Rockwell C 52 – 54 52 – 54 air or oil quenched and tempered at 510°C (950°F) and 540°C (1000°F).
Hardness, Rockwell C 51 – 53 51 – 53 air or oil quenched and tempered at 565°C (1050°F).
Hardness, Rockwell C 49 – 51 49 – 51 air or oil quenched and tempered at 595°C (1100°F).
Hardness, Rockwell C 45 – 47 45 – 47 air or oil quenched and tempered at 620°C (1150°F).
Hardness, Rockwell C 39 – 41 39 – 41 air or oil quenched and tempered at 650°C (1200°F).
Hardness, Rockwell C 31 – 33 31 – 33 air or oil quenched and tempered at 675°C (1250°F).
Hardness, Rockwell C 28 – 30 28 – 30 air or oil quenched and tempered at 705°C (1300°F).
Hardness, Rockwell C 51 – 53 51 – 53 air quenched from 1025°C (1875°F) or oil quenched from 1010°C (1850°F) with no temper, or tempered for 1 hour at 315°C (600°F), 425°C (800°F), and 480°C (900°F).
Hardness, Vickers 549 549 Converted from Rockwell C Hardness.
Tensile Strength, Ultimate 1990 MPa 289000 psi
Tensile Strength, Yield 1650 MPa 239000 psi
Elongation at Break 9 % 9 %
Modulus of Elasticity 210 GPa 30500 ksi at 20°C
Bulk Modulus 140 GPa 20300 ksi Typical for steel.
Poisson’s Ratio 0.3 0.3 Calculated
Machinability 50 % 50 % Based on 1% carbon steel. as 100% machinability
Shear Modulus 81 GPa 11700 ksi Estimated from elastic modulus
Thermal Properties
CTE, linear 20°C 11 µm/m-°C 6.11 µin/in-°F 25 – 95°C
CTE, linear 250°C 11.5 µm/m-°C 6.39 µin/in-°F 25 – 205ºC
CTE, linear 500°C 12.4 µm/m-°C 6.89 µin/in-°F 25 – 540°C
Heat Capacity 0.46 J/g-°C 0.11 BTU/lb-°F from 0-100°C (32-212°F)
Thermal Conductivity 24.3 W/m-K 169 BTU-in/hr-ft²-°F at 215°C; 24.4 W/m-K at 350°C, 24.3 at 475°C; 24.7 at 605°C
Descriptive Properties
Annealing Temperature 850 – 870°C for 4 hours furnace cool 20°C per hour max.
Stress Relieving Temperature 600 – 650°C for 2 hours (approx.) cool in still air; always stess relief before hardening.

References are available for this material.