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T30402 / AISI D2 High Chromium Cold Work Steel
T30402 / AISI D2 High Chromium Cold Work Steel

T30402 / AISI D2 High Chromium Cold Work Steel

Product parameters
Material technical standards:: ASTM A681 - 2004
Place of origin:: P. R. China
Terms of price:: Ex works, CIF, and CFR
Stock & Inventory available:: Round bar Diam. 3mm ~ 150mm
Min. order quantity:: 1000 KG
Standard export packing way:: Wooden box, wooden Pallet / tray with free from fumigation.
Production lead time:: Within 15 days after 30% downpayment.
Company ISO register No.:: UQ211218R0
INQUIRY
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.

Chemical Composition (Weight %)
C (％) 1.40 ～ 1.60
Si(％) 0.10 ～ 0.60
Mn(％) 0.30 ～ 0.60
P(％) ≤ 0.030
S (％) ≤ 0.030
Cr (％) 11.0 ～ 13.0
Ni (％) -
Mo(％) 0.70 ～ 1.20
Other (％) V 0.50 ～ 1.10
Mechanical Properties
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) 217 ～ 255
Forms and dimensions available:
Round bar (Diameter): 5.50 ~ 350mm
Square bar / Flat bar: 3 ~ 600mm
Wire rod (Diameter): 2.0 ~ 10mm
Forging piece: Different shapes based on OEM

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