ASTM A289 18Mn-18Cr
2014-09-19 11:16:59 Origin： Remark：0 Click：
ASTM A289 Suppliers, Alloy ASTM A289 Manufacturers, ASTM A289 Forging Bar plate machined, ASTM A289 Exporters, Technical specifications - ASTM A289 From Melting, ESR & VAR technique, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, Ultrasonic flaw detection test.
MATERIAL SPECIFICATION: ASTM A289 18Mn-18Cr
MATERIAL CATEGORY: 18Mn-18Cr Austenitic steel, nonmagnetic alloy
PRODUCT DESCRIPTION
The alloy is usually produced by BEF AOD / 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 softened condition.
Final heat treatment - solution treatment / QT + Cold expansion
MATERIAL SPECIFICATIONS
ASTM A289 / A289M
AVAILABILITY
Black bar / Flat bar / Square bar
Bright - peeled + polishing, centerless grinding
Forged - ring, tube, pipe casing, discs, shaft
CHEMICAL COMPOSITION (WEIGHT %) - ASTM A289M 18Mn-18Cr
Carbon,C (%): 0.10 max
Manganese,Mn (%): 17.5 ~ 20.0
Phosphorus,P (%): 0.060 max
Sulfur,S (%): 0.015 max
Silicon, Si (%): 0.80 max
Nickel,Ni (%): 2.00 max
Chromium,Cr (%): 17.5 ~ 20.0
Nitrogen, N (%): 0.45 ~ 0.80
Titanium,Ti (%): 0.10 max
Aluminum,Al (%): 0.04 max
Vanadium,V (%): 0.25 max
Manganese,Mn (%): 17.5 ~ 20.0
Phosphorus,P (%): 0.060 max
Sulfur,S (%): 0.015 max
Silicon, Si (%): 0.80 max
Nickel,Ni (%): 2.00 max
Chromium,Cr (%): 17.5 ~ 20.0
Nitrogen, N (%): 0.45 ~ 0.80
Titanium,Ti (%): 0.10 max
Aluminum,Al (%): 0.04 max
Vanadium,V (%): 0.25 max
Features - ASTM A289/A289M 18Mn-18Cr
Non-magnetic stainless steel reduces the losses in the ring that are caused by eddy currents and thermal stresses. The ring is cold formed to provide the highest yield strength and to ensure plastic deformation does not occur during operation.
Mechanical properties - Room Temperature Mechanical Property Requirement
Grade 1
Tensile Strength, Min,MPa | 1000
0.2% Yield Strength, Min,MPa | 930
Elongation in 50 mm, Min, | % : 28.0
Reduction of Area, Min, % : 60.0
Charpy V-Notch energy: 95
Grade 2
Tensile Strength,min,MPa | 1070
0.2% Yield Strength,min,MPa | 1000
Elongation in 50 mm,min, | %: 25.0
Reduction of Area, min, % : 55.0
Charpy V-Notch energy, 88
Grade 3
Tensile Strength,min,MPa | 1140
0.2% Yield Strength,min,MPa | 1105
Elongation in 50 mm,min, | %: 20.0
Reduction of Area, min, % : 50.0
Charpy V-Notch energy, 81
Grade 4
Tensile Strength,min,MPa | 1170
0.2% Yield Strength,min,MPa | 1140
Elongation in 50 mm,min, | %: 19.0
Reduction of Area, min, % : 48.0
Charpy V-Notch energy, 79
Grade 5
Tensile Strength,min,MPa | 1205
0.2% Yield Strength,min,MPa | 1170
Elongation in 50 mm,min, | %: 17.0
Reduction of Area, min, % : 45.0
Charpy V-Notch energy, 75
Grade 6
Tensile Strength,min,MPa | 1275
0.2% Yield Strength,min,MPa | 1240
Elongation in 50 mm,min, | %: 14.0
Reduction of Area, min, % : 40.0
Charpy V-Notch energy, 68
Grade 7
Tensile Strength,min,MPa | 1345
0.2% Yield Strength,min,MPa | 1310
Elongation in 50 mm,min, | %: 12.0
Reduction of Area, min, % : 35.0
Charpy V-Notch energy, 54
Grade 8
Tensile Strength,min,MPa | 1380
0.2% Yield Strength,min,MPa | 1345
Elongation in 50 mm,min, | %: 10.0
Reduction of Area, min, % : 30.0
Charpy V-Notch energy, 47
PRODUCT PROFILE
Round bar (Diameter): 8mm to 450mm
Square bar / Flat bar: 10mm to 850mm
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 30 - 2500 mm, with wall thickness ranging from 5 to 200 mm.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL us or call our resident team of qualified production engineers. E-mail: sales@ccsteels.com
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