ASTM A838 type 2
2020-04-14 10:22:49 Origin： Remark：0 Click：
ASTM A838 type 2, a Chromium base Free-machining alloy steel. Round bars, Forgings ASTM A838 type 2 Heat treated, 100% Ultrasonic flaw detection test.
MATEIRAL TECHNICAL DATASHEET - ASTM A838 430FR type 2
MATERIAL CATEGORY - Free cutting steel
PRODUCT DESCRIPTION
The alloy is usually produced by BEF + AOD or EAF
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 - Quenched and tempered
The alloy is usually produced by BEF + AOD or EAF
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 - Quenched and tempered
MATERIAL SPECIFICATIONS - ASTM A838
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): ≤ 0.065
Silicon, Si (％): 1.00 ~ 1.50
Manganese, Mn (％): ≤ 0.80
Phosphorus, P (％)≤: 0.030
Sulfur, S (％)≤: 0.25 ~ 0.40
Nickel, Ni (％): ≤ 0.60
Chromium, Cr (％): 17.25 ~ 18.25
Molybdenum, Mo (％): ≤ 0.50
Silicon, Si (％): 1.00 ~ 1.50
Manganese, Mn (％): ≤ 0.80
Phosphorus, P (％)≤: 0.030
Sulfur, S (％)≤: 0.25 ~ 0.40
Nickel, Ni (％): ≤ 0.60
Chromium, Cr (％): 17.25 ~ 18.25
Molybdenum, Mo (％): ≤ 0.50
Copper, Cu (%): ≤ 1.00
TYPICAL MECHANICAL PROPERTIES
Form: Cold drawn annealed round bar
Condition: annealing
Tensile strength, σb/MPa: 450 ~ 550
Yield strength, σ0.2/MPa: 320 ~ 450
Elongation, δ(％): 25.0
Reduction of area, ф(％): -
Elongation, δ(％): 25.0
Reduction of area, ф(％): -
Hardness | HRB: 78 ~ 88
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 (sales@ccsteels.com ) our resident team of qualified production engineers.
If you meet further on any technical enquiry, pleased to Email (sales@ccsteels.com ) our resident team of qualified production engineers.
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