Alloy 18-2
2014-10-08 16:48:20 Origin： Remark：0 Click：
DATA SHEET -Alloy Steel-AISI444 /Alloy 18-2/ UNSS44400※※ MATERIAL CATEGORY: 18Cr-2Mo Ferrite type ※ PRODUCT D...
DATA SHEET - Alloy Steel - AISI 444 & Alloy 18-2 & UNS S44400
MATERIAL CATEGORY: 18Cr-2Mo Ferrite type
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 annealed condition.
Final heat treatment - solution treatment / QT
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 annealed condition.
Final heat treatment - solution treatment / QT
MATERIAL SPECIFICATIONS
ASTM A959 (2004), A276, A312, A632, A176, A580
ASTM A959 (2004), A276, A312, A632, A176, A580
AVAILABILITY
Black bar /Flat bar / steel strip / square bar
Bright - peeled + polishing, centerless grinding
Forged - ring, tube, pipe casing, discs, shaft
Black bar /Flat bar / steel strip / square bar
Bright - peeled + polishing, centerless grinding
Forged - ring, tube, pipe casing, discs, shaft
CHEMICAL COMPOSITION (WEIGHT %) - UNS S44400
C(％): ≤0.025
Si(％): ≤1.00
Mn(％): ≤1.00
P(％)≤: 0.040
S(％)≤: 0.030
Cr(％): 17.5～19.5
Ni(％): ≤1.00
Mo(％): 1.75～2.50
Other(％): N≤0.035,0.2+4(C+N)≤(Ti+Nb)≤0.80
Si(％): ≤1.00
Mn(％): ≤1.00
P(％)≤: 0.040
S(％)≤: 0.030
Cr(％): 17.5～19.5
Ni(％): ≤1.00
Mo(％): 1.75～2.50
Other(％): N≤0.035,0.2+4(C+N)≤(Ti+Nb)≤0.80
MECHANICAL PROPERTIES ( FINAL HEAT TREATMENT OR Q/T)
Form: heavy plate, sheet, strip
σb/MPa: 415
σ0.2/MPa: 275
δ(％): 20
ф(％): -
δ(％): 20
ф(％): -
Hardness (HBW): 217
Hardness | HRB: 96
Cold bending property: 180 D
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 equipment
Mechanical parts used in the condition of corrosion resistance
Bolt and nut
Pressure vessel
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. E-mail: sales@ccsteels.com
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers. E-mail: sales@ccsteels.com
PRODUCT PROFILE
Round bar / Wire rod (Diameter): 0.50mm to 3000mm
Square bar / Flat bar: 3mm to 2000mm
Plate / Sheet steel / Steel strip: 0.1mm to 2500mm
Width: 8mm to 2500mm
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.
Pipes / Tubings: OD 3-219 mm, with wall thickness ranging from 0.50 to 35 mm.
Round bar / Wire rod (Diameter): 0.50mm to 3000mm
Square bar / Flat bar: 3mm to 2000mm
Plate / Sheet steel / Steel strip: 0.1mm to 2500mm
Width: 8mm to 2500mm
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.
Pipes / Tubings: OD 3-219 mm, with wall thickness ranging from 0.50 to 35 mm.
