ASTM A387 type 22
2026-01-25 16:19:00 Origin： Remark：0 Click：
Inventory ASTM A387 Grade 22 round bar, flat bar, annealed plate, hot bloomed, forged, rolled, heat treated, 100% Ultrasonic test, cold working technical specification ASTM A387
TECHNICAL DATA SHEET - ASTM A387 Grade 22 & K21590
Material specification: ASTM A387 - 2017
Material category: 2.25Cr - 1.0Mo base alloy steel
Typical chemical compositions (mass fraction %)
Carbon, C (％): 0.05 ~ 0.15
Typical chemical compositions (mass fraction %)
Carbon, C (％): 0.05 ~ 0.15
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.
TYPICAL MECHANICAL PROPERTIES
Tensile strength, Rm ≥ MPa: 415 ~ 585
Yield strength, Rp0.2 / 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 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: T3 ~ 400 X W15 ~ 1200 X L1000 ~ 6000 mm
Forging piece: stepped shafts, 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: T3 ~ 400 X W15 ~ 1200 X L1000 ~ 6000 mm
Forging piece: stepped shafts, 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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