ASTM A387 type 12
2026-01-24 17:26:00 Origin： Remark：0 Click：
Chromium-Molybdenum steel ASTM A387 type 12 round bar, rolled plate, sheet,rod, ESR melted, hot bloomed, forged, heat treated, 100% Ultrasonic test
Technical specification: ASTM A387 - 2017
Material category: 1.0Cr - 0.5Mo base alloy steel
Typical chmical compositions (mass fraction %)
Carbon, C (％): 0.05 ~ 0.17
Typical chmical compositions (mass fraction %)
Carbon, C (％): 0.05 ~ 0.17
Manganese, Mn (％): 0.40 ~ 0.65
Silicon, Si (％): 0.15 ~ 0.40
Silicon, Si (％): 0.15 ~ 0.40
Phosphorus, P (％): ≤ 0.025
Sulfur, S (％): ≤ 0.025
Chromium, Cr (%): 0.80 ~ 1.15
Molybdenum, Mo (%): 0.45 ~ 0.60
Sulfur, S (％): ≤ 0.025
Chromium, Cr (%): 0.80 ~ 1.15
Molybdenum, Mo (%): 0.45 ~ 0.60
Nickel, Ni (%): -
Vanadium, V (%): -
Ferrum, Fe (%): balance.
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Tensile strength, Rm ≥ MPa: 380 ~ 550
Yield strength, Rp0.2 / MPa: 230
Elongation, A5 ≥ (％): 18.0
Reduction of area, Z ≥ (％): -
Hardness via heat treatment / HB: 255 Max.
Reduction of area, Z ≥ (％): -
Hardness via heat treatment / HB: 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 910 mm
Square bar / flat bar: 10 to 600 mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 ~ 250 X W15 ~ 1500 X L1000 ~ 12000 mm
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 910 mm
Square bar / flat bar: 10 to 600 mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 ~ 250 X W15 ~ 1500 X L1000 ~ 12000 mm
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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