904L / N08904 datasheet,904L / N08904 chemical,904L / N08904 heat treatment

904L / N08904
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MATERIAL DATA SHEET -ASTM 904L& UNSN08904MATERIAL CATEGORY -27Cr-22Ni-4Mo-1Cu Austenitic steelStocklist & Inventory -...
MATERIAL DATA SHEET - ASTM 904L & UNS N08904
MATERIAL CATEGORY - 27Cr-22Ni-4Mo-1Cu Austenitic steel
Stocklist & Inventory - Round bar Diam. 18 ~ 160mm
PRODUCT DESCRIPTION
The
alloy is usually produced by AOD / VOD / VIM followed by electroslag refining (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.
Bars are usually supplied black/bright in the softened condition.
Final heat treatment - solution treatment / QT
MATERIAL SPECIFICATIONS - ASTM A959 (2004), A276, A312, A632, A176, A580
AVAILABILITY
Round bar / flat bar / steel strip / square bar
Bright - peeled + polishing, centerless grinding
Forged - ring, tube, pipe casing, discs, shaft
PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 500mm
Square bar / Flat bar: 3mm to 1000mm
Plate / Sheet steel / Steel strip: 0.1mm to 500mm
Width: 8mm to 1500mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
CHEMICAL COMPOSITION ( Mass weight %)
C (%):     ≤ 0.020 
Si (%):    ≤ 1.00
Mn (%):   ≤ 2.00  
P (%)≤:   0.040
S (%)≤:   0.030
Ni (%):    23.0 ~ 28.0
Cr (%):    19.0 ~ 23.0
Mo (%):   4.00 ~ 5.00
N (&):      ≤ 0.10
Cu (%):   1.00 ~ 2.00  
Tensile strength, σb/MPa: 490
Yield strength, σ0.2≥/MPa: 220  
Elongation, δ5≥(%): 35.0
Hardness HBW: -
Hardness HRB (HRC): 90
Cold bending property: N (No need testing of cold bending)
HEAT TREATMENT PRACTICE
Heat treatment is only suitable for specific grades of
stainless steel. When heat treating a stainless the hardening temperatures, including rate of heating, cooling and soaking times will vary due to several factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult with the heat treatment provider for whole guidance on heat treatment of stainless steel grades. We are delighted to help to work with you the special heat treatment based on your special requirements.
TYPICAL APPLICATIONS
Chemical equipment
Mechanical parts used in the condition of corrosion resistance
Bolt and nut
Pressure vessel
TECHNICAL SALES ASSISTANCE
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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