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UNS T20813 / AISI H13 Hot Work Tool Steel
UNS T20813 / AISI H13 Hot Work Tool Steel

UNS T20813 / AISI H13 Hot Work Tool Steel

Product parameters
Material Category:: Chromium-Molybdenum-Vanadium base Tool Steel
Material Technical Standards:: ASTM A681 - 2004
Place of Origin: P. R. China
Terms of Price:: Ex works, CIF, and CFR
Product Shapes:: Round bar, Flat bar, Hollow bar, Plate, and Forgings.
Ultrasonic Test Standard:: ASTM E2375 / MIL-STD- AMS 2154 / SEP 1923 / GB/T 4162 / EN 10228-3 / EN 10308.
Standard Export Packing Way:: Wooden box, wooden Pallet / tray with free from fumigation.
Production Lead Time:: Within 15 days after 30% downpayment.
ISO 9001-2015 Certified by:: UKNAS
Unified Social Credit Code:: 91510871777942750J
Company ISO Register No:: UQ211218R0
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Description
Tool steel is to fabricate the cutting tool, measuring implement, mould, and wear-resisting tool, it possesses higher hardness and keeps maintaining the high hardness and redhardness under high temperature, and more abrasive resistance, proper toughness. Tool steel is commontly divided into carbon tool steel, alloy tool steel, high speed steel.  
Alloy tool steel is one type of steel adds the alloying elements in the carbon tool steel, such as Si, Mn, Ni, Cr, W, Mo, V. Adding the elements (Cr, Mn) can improve the hardenability of tool steel. Or adding other alloying elements meanwhile (the gross is not more than 5%).

The alloy is usually produced by BEF & AOD followed by electroslag remelting (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
Bars are usually supplied black/bright in the annealed condition.

Main Chemical Composition (mass weight %)
C (％) 0.30 ～ 0.40
Si(％) 0.80 ～ 1.20
Mn(％) 0.20 ～ 0.40
P(％) ≤ 0.030
S (％) ≤ 0.030
Cr (％) 4.75 ～ 5.50
Ni (％) -
Mo(％) 1.25 ～ 1.75
Other (％) V 0.80 ～ 1.20
Mechanical Properties At Room Temperature.
Condition of heat treatment annealing
Tensile Rm (MPa) -
Yield Rp0.2 (MPa) -
Elongation A (%) -
Reduction in cross section on fracture Z (%) -
Impact AKV/AKU (J) -
Brinell Hardness (HBW) 235  max
Products Shapes and Dimensions:
Round bar (Diameter): 5.50 ~ 500mm
Square bar / Flat bar: 3 ~ 500mm
Wire rod (Diameter): 3.0 ~ 14mm
Forging piece: Different shapes based on OEM

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