T8-T10A hot rolled steel round bars

Classification :

T8, T10 and T12 are carbon tool steels. They are very hard. The Brinell hardness in annealed state is more than 300.Manual saw blade is T12 material, just quenching, hardness is greater.10 and 20 are low carbon, high quality structural steel, very soft, Brinell hardness is less than 155.Therefore, the fitter saw, laborious, the saw is very easy to wear.

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Chemical Composition

The chemical composition of T8 tool steels is outlined in the following table.

Element	Content (%)
Tungsten, W	13.25-14.75
Cobalt, Co	4.25-5.75
Chromium, Cr	3.75-4.5
Vanadium, V	1.80-2.40
Carbon, C	0.75-0.85
Molybdenum, Mo	0.4-1
Nickel, Ni	0.3
Copper, Cu	0.25
Manganese, Mn	0.2-0.4
Silicon, Si	0.2-0.4
Phosphorus, P	0.03
Sulfur, S	0.03

Physical Properties

The following table shows the physical properties of T8 tool steels.

Properties	Metric	Imperial
Density	8.43 g/cm3	0.267 lb/in3

Mechanical Properties

The mechanical properties of T8 tool steels are displayed in the following table.

Properties	Metric	Imperial
Tensile strength	1158 MPa	167.95 ksi
Elongation	15%	15%
Modulus of elasticity	190-210 GPa	27557- 30457 ksi
Poisson’s ratio	0.27-0.3	0.27-0.3

Thermal Properties

The thermal properties of T8 tool steels are given in the following table

Properties	Metric	Imperial
Thermal expansion co-efficient	16-17 µm/m°C	8.8-9.4 µin/in°F
Thermal conductivity	16 W/mK	110 BTU.in/hrft².°F

T8 Range of products

Product type	Products	Dimension	Processes	Deliver Status
Plates / Sheets	Plates / Sheets	0.08-200mm(T)WL	Forging, hot rolling and cold rolling	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar	Round Bar, Flat Bar, Square Bar	Φ8-1200mm*L	Forging, hot rolling and cold rolling, Cast	Black, Rough Turning, Shot Blasting,
Coil / Strip	Steel Coil /Steel Strip	0.03-16.0x1200mm	Cold-Rolled & Hot-Rolled	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes	Seamless Pipes/Tubes, Welded Pipes/Tubes	OD:6-219mm x WT:0.5-20.0mm	Hot extrusion, Cold Drawn, Welded	Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade

Grade	Standard	Country	Application
T8	ASTM	USA	High-Speed Tool Steel

warehouse storage

The annual output of the factory is 400,000 tons, and the current inventory is more than 100,000 tons, which can greatly save the purchasing time of customers and ensure the production cycle and product quality of customers. We are a quality partner for domestic and foreign customers. At present, there are 14 steel production lines for processing, bending, coating, heat treatment, cutting, drilling, chamfering, conditioning, surface treatment and 13 sets of processing equipment.

Packing and shipping

Our main products are: carbon steel plate, carbon steel pipe, carbon steel coil, stainless steel plate, stainless steel coil, stainless steel profile, galvanized plate, galvanized coil, color coated steel coil, ppgi/ppgl and a wide range of high quality steel products.

Customer visit

Li Cheng (Shandong) Metal Materials Co., LTD. has the right to import and export, and its products are exported to more than 20 countries in Asia, Africa, Europe, North America and other regions. Complete processing equipment, perfect quality assurance system, well received by customers.We are willing to first-class technology, first-class equipment, first-class service wholeheartedly and friends from all walks of life sincere cooperation!

Cooperation Case

Applicable to construction, petroleum, chemical, electric power, metallurgy, urban gas, heat pipe network, Bridges, railways, vehicles, ships and other industrial fields and construction, infrastructure and other engineering fields. Complete testing equipment, strong technical force, can implement GB, ASTM, JIS, DIN and other standards.

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Steel Round Bars