S21800
2014-09-19 10:17:18 Origin： Remark：0 Click：
Austenitic steel S21800 Cold work round bar, Flat bar S21800 Steelmaking, Blooming, Hot forging, Hot rolling, Heat treatment,
NONMAGNETIC ALLOY - UNS S21800
MATERIAL CATEGORY - 17Cr - 7Ni - 8Mn Austenitic steel
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.
MATERIAL SPECIFICATIONS - ASTM A959 - 2004), A276, A312, A632, A176, A580
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): ≤ 0.10
Silicon, Si (％): 3.50 ~ 4.50
Manganese, Mn (％): 7.00 ~ 9.00
Phosphorus, P (％)≤: 0.040
Sulfur, S (％)≤: 0.030
Chromium, Cr (％): 16.0 ~ 18.0
Nickel, Ni (％): 8.00 ~ 9.00
Molybdenum, Mo (％): -
Nitrogen, N (％): 0.08 ~ 0.18
Silicon, Si (％): 3.50 ~ 4.50
Manganese, Mn (％): 7.00 ~ 9.00
Phosphorus, P (％)≤: 0.040
Sulfur, S (％)≤: 0.030
Chromium, Cr (％): 16.0 ~ 18.0
Nickel, Ni (％): 8.00 ~ 9.00
Molybdenum, Mo (％): -
Nitrogen, N (％): 0.08 ~ 0.18
MECHANICAL PROPERTIES UNDER HEAT TREATMENT
Form: Plate,sheet, strip
Tensile strength, Rm / MPa: 655
Yield strength, Rp0.2 / MPa: 345
Elongation, A5 (％): 35
Reduction of area, Z (％): -
Elongation, A5 (％): 35
Reduction of area, Z (％): -
Hardness (HBW): 241
Hardness | HRB: 100
Cold bending property: N
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.
PRODUCT PROFILE & DIMENSIONS
Round bar / Wire rod (diameter): 5.5mm to 450mm
Square bar / Flat bar: 6mm to 600mm
Plate / Sheet steel / Steel strip: 0.5mm to 600mm
Width: 8mm to 600mm
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 (sales@ccsteels.com.) us or call our resident team of qualified production engineers.
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