1.4921 Stockist, 1.4921 Equivalent Steel
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1.4921
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Material Specification DIN EN 10302 Martensitic Steel 1.4921 Round bar, flat bar, and forgings, Hot forging / rolling, Heat treatment, Cold machined.
TECHNICAL DATA SHEET - Grade W-Nr 1.4921

MATERIAL CATEGORY - High temperature high strength steel and superalloy 
MATERIAL SPECIFICATIONS - DIN 17742, 17460, 17480, DIN EN 10302, 10296, 10095
CHEMICAL COMPOSITION (mass weight - %) 
Carbon, C (%):  0.15 ~ 0.23
Silicon, Si (%):  0.10 ~ 0.50
Manganese, Mn (%):  0.30 ~ 0.80
Phosphorus, P (%)≤:  0.045
Sulfur, S (%)≤:  0.030
Chromium, Cr (%):  11.0 ~ 12.5
Nickel, Ni (%):  ≤ 0.80
Molybdenum, Mo (%):  0.80 ~ 1.20
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot forming temperature /℃: 1100~850
Heat treatment temperature /℃ | annealing:   750~780    
Heat treatment temperature /℃ | quenching or solution:  985 ~ 1015 oil 
Heat treatment temperature /℃ | tempering: 680~780
Heat treatment temperature /℃ | ageing:    630~750
Condition: heat treatment
Mechanical property under room temperature |σb/MPa: 740~ 880                  
Mechanical property under room temperature  |σs≥/MPa:  540    
Mechanical property under room temperature |δ5≥(%):   14        
Mechanical property under room temperature |Akv(DVM):  34       
Heat stability temperature/℃:   550
Non-scale temperature in air /℃:   600
TYPICAL APPLICATIONS 
These materials must stand up to high heat, extreme oxidation potential and recycling. 
The alloy is usually produced by AOD/ VIM / VOD followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the solution annealing condition.
Final heat treatment - heat treatment Q+T.
PRODUCT PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 550mm
Square bar / Flat bar: 10mm to 1000mm
Plate / Sheet steel / Steel strip: 0.5mm to 1000mm
Width: 8mm to 1200mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts, and other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, pleased to email or call our resident team of qualified production engineers. E-mail: sales@ccsteels.com.

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