ASTM A387 type 91
2019-09-06 14:14:41 Origin： Remark：0 Click：
Standard Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum steel ASTM A387 type 91 datasheet,ASTM A387 type 91 Chemical composition,ASTM A387 type 91 Mechanical property from Steelmaking, ESR melted, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic test, Cold working or rough turned machining. Technical specification - ASTM A387 - 2017.
TECHNICAL DATA SHEET - ASTM A387 Grade 91
MATERIAL TECHNICAL STANDARDS: ASTM A387 - 2017
Mn (％): 0.30 ~ 0.60
Si (％): 0.20 ~ 0.50
Si (％): 0.20 ~ 0.50
P (％)≤: 0.020
S (％)≤: 0.010
Cr (%): 8.00 ~ 9.50
Mo (%): 0.85 ~ 1.05
S (％)≤: 0.010
Cr (%): 8.00 ~ 9.50
Mo (%): 0.85 ~ 1.05
Ni (%): ≤ 0.40
V (%): 0.18 ~ 0.25
Nb (%): 0.06 ~ 0.10
Cu (%): -
B (%): -
N (%): 0.030 ~ 0.070
Al (%): ≤ 0.020
Ti (%): ≤ 0.01
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Tensile strength, σb/≥ MPa: 585 ~ 760
Yield strength, σ0.2/MPa: 415
Elongation, δ ≥(％): 18.0
Reduction of area, ф ≥ (％): 45.0
Hardness via heat treatment /HBW: 235 Max.
Reduction of area, ф ≥ (％): 45.0
Hardness via heat treatment /HBW: 235 Max.
PRODUCT DESCRIPTION
The alloy is usually produced by BEF /EAF + VD followed by electroslag refining (ESR or 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' specific requirements.
Round bar / Wire rod (Diameter): 0.50mm to 600mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 - 200mm X W1000- 2500mm X L1000-12000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
The alloy is usually produced by BEF /EAF + VD followed by electroslag refining (ESR or 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' specific requirements.
Round bar / Wire rod (Diameter): 0.50mm to 600mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 - 200mm X W1000- 2500mm X L1000-12000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
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