ASTM A387 type 22L
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Pressure vessel plate alloy steel Chromium-Molybdenum steel ASTM A387 Grade 22L properties from Steelmaking, ESR melted, hot bloomed, forged, rolled, heat treated
Technical specification: ASTM A387 - 2017
Material category: 2.25Cr - 1.0Mo base alloy steel
Typical chemical compositions (mass fraction %)
Carbon, C (％): ≤ 0.10
Typical chemical compositions (mass fraction %)
Carbon, C (％): ≤ 0.10
Manganese, Mn (％): 0.30 ~ 0.60
Silicon, Si (％): ≤ 0.50
Silicon, Si (％): ≤ 0.50
Phosphorus, P (％): ≤ 0.025
Sulfur, S (％): ≤ 0.025
Chromium, Cr (%): 2.00 ~ 2.50
Molybdenum, Mo (%): 0.90 ~ 1.10
Sulfur, S (％): ≤ 0.025
Chromium, Cr (%): 2.00 ~ 2.50
Molybdenum, Mo (%): 0.90 ~ 1.10
Nickel, Ni (%): -
Ferrum, Fe (%): balance.
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Tensile strength, σb ≥ MPa: 415 ~ 585
Yield strength, σ0.2 / MPa: 205
Elongation, A5 ≥ (％): 18.0
Reduction of area, Z ≥ (％): -
Hardness via heat treatment / HBW: 255 max.
Reduction of area, Z ≥ (％): -
Hardness via heat treatment / HBW: 255 max.
PRODUCT DESCRIPTION
The alloy is usually produced by BEF / EAF + VD followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' specific requirements.
Round bar / rod / disc (diameter): 6.0 to 830 mm
Square bar / flat bar: 10 to 600 mm
Length: random length or based on the customer's special requirement.
Forging piece: stepped shafts, and other different shapes based on OEM.
The alloy is usually produced by BEF / EAF + VD followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' specific requirements.
Round bar / rod / disc (diameter): 6.0 to 830 mm
Square bar / flat bar: 10 to 600 mm
Length: random length or based on the customer's special requirement.
Forging piece: stepped shafts, and other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE & SERVICE
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.
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