ASTM A387 Grade 9
2026-01-27 13:41:00 Origin： Remark：0 Click：
Specification ASTM A387 Grade 9 round bar, flat bar, plate, forgings properties from Steelmaking, ESR melted, hot bloomed, forged, rolled, heat treated
TECHNICAL DATA SHEET - ASTM A387 type 9
Technical specifications: A387 - 2017
Mateiral category: 9Cr - 1.0Mo alloy steel
Typical chemical compositions (mass fraction %)
Carbon, C (％): ≤ 0.15
Typical chemical compositions (mass fraction %)
Carbon, C (％): ≤ 0.15
Manganese, Mn (％): 0.30 ~ 0.60
Silicon, Si (％): ≤ 1.00
Silicon, Si (％): ≤ 1.00
Phosphorus, P (％): ≤ 0.025
Sulfur, S (％): ≤ 0.025
Chromium, Cr (%): 9.00 ~ 10.0
Molybdenum, Mo (%): 0.90 ~ 1.10
Sulfur, S (％): ≤ 0.025
Chromium, Cr (%): 9.00 ~ 10.0
Molybdenum, Mo (%): 0.90 ~ 1.10
Nickel, Ni (%): -
Vanadium, V (%): ≤ 0.04
Ferrum, Fe (%): balance.
TYPICAL MECHANICAL PROPERTIES
Tensile strength, σb ≥ MPa: 415 ~ 585
Yield strength, σ0.2 / MPa: 205
Elongation, δ5 ≥ (％): 18.0
Reduction of area, ф ≥ (％): 45.0
Hardness via heat treatment /HBW: 255 MAX.
Reduction of area, ф ≥ (％): 45.0
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 800 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 W20 ~ 1000 X L1000 ~ 6000 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 800 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 W20 ~ 1000 X L1000 ~ 6000 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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