ASTM 420F
2014-10-16 10:38:53 Origin： Remark：0 Click：
AISI 420F Martensitic free cutting steel, Round bar, flat bar, plate 420F mechanical properties from steelmaking, forging, rolling, heat treatment, cold working.
TECHNICAL DATA SHEET - Grade AISI 420F & UNS S42020
MATERIAL CATEGORY: Martensite type 14Cr-Ni-Mo
PRODUCT DESCRIPTION
The alloy is usually produced by AOD / VOD / EAF 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 annealed condition.
Final heat treatment - QT
The alloy is usually produced by AOD / VOD / EAF 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 annealed condition.
Final heat treatment - QT
MATERIAL SPECIFICATIONS - ASTM A959 (2004), A276, A312, A632, A176, A580
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.30 ~ 0.40
Silicon, Si (％): ≤ 1.00
Manganese, Mn (％): ≤ 1.25
Phosphorus, P (％)≤: 0.060
Sulfur, S (％): ≥0.15
Chromium, Cr (％): 12.0 ~ 14.0
Nickel, Ni (％): -
Molybdenum, Mo (％): ≤ 0.60
MECHANICAL PROPERTIES ( FINAL HEAT TREATMENT OR Q/T)
Silicon, Si (％): ≤ 1.00
Manganese, Mn (％): ≤ 1.25
Phosphorus, P (％)≤: 0.060
Sulfur, S (％): ≥0.15
Chromium, Cr (％): 12.0 ~ 14.0
Nickel, Ni (％): -
Molybdenum, Mo (％): ≤ 0.60
MECHANICAL PROPERTIES ( FINAL HEAT TREATMENT OR Q/T)
Form: bar
Condition: Tempering (620℃)
Tensile strength, σb/MPa: 965
Yeild strength, σ0.2/MPa: 760
Yeild strength, σ0.2/MPa: 760
Elongation, δ(％): 13.0
Reduction of area, ф(％): -
Hardness | HRB: -
Reduction of area, ф(％): -
Hardness | HRB: -
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.
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 equipments and parts.
Mechanical parts used in the condition of corrosion resistance.
Bolt and nuts, Pressure vessel.
Chemical equipments and parts.
Mechanical parts used in the condition of corrosion resistance.
Bolt and nuts, Pressure vessel.
PRODUCT PROFILE & DIMENSIONS
Round bar / Disc (diameter): 5.50mm to 500mm
Square bar / Flat bar: 10mm to 2000mm
Plate / Sheet steel / Steel strip: 1mm to 1500mm
Width: 8mm to 1500mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts, other different shapes based on OEM.
Square bar / Flat bar: 10mm to 2000mm
Plate / Sheet steel / Steel strip: 1mm to 1500mm
Width: 8mm to 1500mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts, other different shapes based on OEM.
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.
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers. Email: sales@ccsteels.com.
