T41904 datasheet,T41904 chemical,T41904 heat treatment
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T41904
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Descriptions T41904 datasheet, T41904 Chemical, T41904 Properties from Steelmaking, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic flaw detection test, Cold working or Machined. All of these materials conform to Military standard, nuclear power. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
Official Test Certification: issued by TUV - SGSBV

TECHNICAL SPECIFICATION MATERIAL DATASHEET - T41904
MATERIAL CATEGORY - impact resistance tool steel
MATERIAL SPECIFICATIONS - ASTM A681 -2004
CHEMICAL COMPOSITION (WEIGHT - %)
C (%):     0.50 ~ 0.65
Si (%):     1.75 ~ 2.25
Mn (%):   0.60 ~ 0.95
P (%)≤:   0.030
S (%)≤:   0.030
Cr (%):    0.10 ~ 0.50
Mo (%):   -
W (%):    -
V (%):     ≤ 0.35
HEAT TREATMENT PRACTICE AND HARDNESS
Hot working tenperature ℃ /Starting:   1010~1120
Hot working tenperature ℃ /Ending:     870
Annealing temperature ℃:                   760~790
Hardness after annealing ≤HBW:          192~229
Quenching temperature ℃:                 870~930
Cooling medium:                                 oil/water
Tempering temperature ℃:                 180~430
Hardness value after tempered /HRC:   60 ~ 50

MELTING PROCESS 
This alloy is generally smelt in electric arc furnace  (EAF ) or IFF + VD, LF + Electroslag remelting (ESR).
For a purpose of higher quality, it should be smelt via technology of vacuum refining.
TYPICAL APPLICATIONS
Alloy tool
steel is widely used to produce the cutting tool, cold/heat distortion mould and measuring implements,
and further to manufacture the piston, valve, valve seat of fuel pump of diesel engine.
Cutting tools
Mechanical parts 
Air hammer tools
Piercing tools
PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 600mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T60 - 300mm X W60 - 1000mm X L1000 - 12000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM. 
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers, Email:
sales@ccsteels.com

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