AISI 444
2014-10-08 16:48:17 Origin： Remark：0 Click：
ASTM A959 Specifications Ferritic Steel AISI 444 Round bar, Flat bar, Plate AISI 444 Properties, ESR Melted Steelmaking, Hot forging/rolling, Heat treatment
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL DATASHEET - AISI 444
SPECIAL MELTING PROCESS - BEF + AOD / + ESR
MATERIAL CATEGORY - Stainless steel round bar, flat bar and semi-finished products
STEEL TYPE - Ferritic stainless steel series
STOCKLIST & INVENTORY on hand - Round bar 14 ~ 200mm
HS Code For Customs - 72221100 / 72221900 / 72222000
MATERIAL SPECIFICATIONS - ASTM A959 (2004), A276, A312, A632, A176,
CHEMICAL COMPOSITION (mass weight % )
Carbon, C (％): ≤ 0.025
Silicon, Si (％): ≤ 1.00
Manganese, Mn (％): ≤ 1.00
Phosphorus, P (％) ≤: 0.040
Sulfur, S (％) ≤: 0.030
Chromium, Cr (％): 17.5 ~ 19.5
Nickel, Ni (％): ≤ 1.00
Molybdenum, Mo (％): 1.75 ~ 2.50
Ti + Nb (％): 0.2 + 4 X (C+N) ~ 0.80
Silicon, Si (％): ≤ 1.00
Manganese, Mn (％): ≤ 1.00
Phosphorus, P (％) ≤: 0.040
Sulfur, S (％) ≤: 0.030
Chromium, Cr (％): 17.5 ~ 19.5
Nickel, Ni (％): ≤ 1.00
Molybdenum, Mo (％): 1.75 ~ 2.50
Ti + Nb (％): 0.2 + 4 X (C+N) ~ 0.80
Nitrogen, N (%): ≤ 0.035
MECHANICAL PROPERTY UNDER ROOM TEMP.
Forms: Round bar, flat bar, forgings and plate
Tensile strength, Rm ≥ MPa: 415
Yield strength, Rp0.2 / MPa: 275
Elongation, A5 ≥ (％): 20.0
Reduction of area, Z ≥ (％): -
Hardness via heat treatment /HBW: 217 max.
PRODUCT DESCRIPTION
The alloy is usually produced by AOD / VD followed by electroslag refining (ESR) / 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' requirements.
Bars are usually supplied black/bright in the annealed condition.
Final heat treatment - annealed
The alloy is usually produced by AOD / VD followed by electroslag refining (ESR) / 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' requirements.
Bars are usually supplied black/bright in the annealed condition.
Final heat treatment - annealed
AVAILABLE PROFILE & DIMENSIONS
Round bar / Disc (diameter): 5.5 ~ 850mm
Square bar / Flat bar: 10 ~ 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Round bar / Disc (diameter): 5.5 ~ 850mm
Square bar / Flat bar: 10 ~ 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy / middle plate via hot rolled: T60 - 400mm X W70 - 1500mm X L1000-12000mm
Sheet steel via cold rolled: T0.5 - 6mm X W60 - 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineers.
Sheet steel via cold rolled: T0.5 - 6mm X W60 - 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineers.
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