T8 Steel belongs to carbon tool steel. Hardened plastic mold steel. After quenching and tempering, it has higher hardness and wear resistance. But, it has a low hot hardness, poor hardenability, easy deformation, plasticity and low strength.


T8 Steel Chemical Composition


T8 Steel Mechanical Properties

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated ConditionBrinell hardness (HBW)
564 (≥)191 (≥)322112Solution and Aging, Annealing, Ausaging, Q+T341

T8 Physical properties

Temperature T
Specific heat
J / kgK
Thermal conductivity
129 (≥)823 (≥)234231
Creep strain limit
(Rp1,0) N/mm2
Creep rupture strength
(Rp1,0) N/mm2
Electric resistance
Modulus of elasticity
973572558Solution and Aging, Annealing, Ausaging, Q+T,etc433

Features and Application

T8 steel is used for various tools that need high hardness and wear resistance. Such as simple-shaped dies and punches, metal cutting knives. Drilling tools, woodworking cutters, countersinks, axes, chisels, longitudinal hands Use saws. Fitter assembly tools, rivet dies. It is not easy to make tools that can withstand large impacts.

T8 products

Product typeProductsDimensionProcessesDeliver Status
Plates/SheetsPlates/Sheets0.08-200mm(T)*W*LForging, hot rolling, and cold rollingAnnealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel BarRound Bar, Flat Bar, Square BarΦ8-1200mm*LForging, hot rolling and cold rolling, CastBlack, Rough Turning, Shot Blasting,
Coil/StripSteel Coil/Steel Strip0.03-16.0x1200mmCold-Rolled&Hot-RolledAnnealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes/TubesSeamless Pipes/Tubes, Welded Pipes/TubesOD:6-219mm x WT:0.5-20.0mmHot extrusion, Cold Drawn, WeldedAnnealed, Solution and Aging, Q+T, ACID-WASHED

Our Services

1. The price is determined according to the material, size, finishing process and different payment methods

2. Each material has been ut tested

3. We have every kind of material in stock, so we can deliver it in time.

4. The size of steel can be customized according to customer requirements, and the minimum order quantity and specification model can be developed / produced according to international, Chinese or industrial standards

5. There are more services. Welcome to consult.