K21590 / ASTM T22
2015-06-25 10:18:39 Origin： Remark：0 Click：
Technical specifications of K21590 alloy steel - T22 Chemical composition,T22 Mechanical properties from steelmaking, Electroslag remelting, Blooming, Ultrasonic testing,ASTM T22 Forging, Rolling,Heat treatment, Cold working, Straightening, Cold machined. We also possess advanced precision machining equipments for further processing. Please contact us for the specific enquiry today.
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL DATASHEET - UNS K21590 & ASTM T22
MATERIAL CATEGORY: Low alloy seamless pipe for boiler, heat exchanger, condenser
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.05 ~ 0.15
Si (％): ≤ 0.50
Mn (％): 0.30 ~ 0.60
P (％)≤: 0.025
S (％)≤: 0.025
Cr (％): 1.90 ~ 2.60
Ni (％): -
Mo (％): 0.87 ~ 1.13
MECHANICAL PROPERTIES
Si (％): ≤ 0.50
Mn (％): 0.30 ~ 0.60
P (％)≤: 0.025
S (％)≤: 0.025
Cr (％): 1.90 ~ 2.60
Ni (％): -
Mo (％): 0.87 ~ 1.13
MECHANICAL PROPERTIES
Tensile strength, σb≥/MPa: 415
Yield strength, σ0.2≥/MPa: 205
Elongation, δ ≥(％): 30.0
Hardness ≤|HBW: 179
Yield strength, σ0.2≥/MPa: 205
Elongation, δ ≥(％): 30.0
Hardness ≤|HBW: 179
PRODUCT DESCRIPTION
The alloy is usually produced by AOD / VOD /VIM 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 - solution treatment / QT
The alloy is usually produced by AOD / VOD /VIM 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 - solution treatment / QT
HEAT TREATMENT PRACTICE
Heat treatment is only suitable for specific grades of stainless steel. When heat treating a stainless the hardening temperatures, including rate of heating, cooling and soaking times will vary due to several factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult with the heat treatment provider for whole guidance on heat treatment of stainless steel grades. We are delighted to help to work with you the special heat treatment based on your special requirements.
TYPICAL APPLICATIONS
Boiler, heat exchanger, condenser
Heat treatment is only suitable for specific grades of stainless steel. When heat treating a stainless the hardening temperatures, including rate of heating, cooling and soaking times will vary due to several factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult with the heat treatment provider for whole guidance on heat treatment of stainless steel grades. We are delighted to help to work with you the special heat treatment based on your special requirements.
TYPICAL APPLICATIONS
Boiler, heat exchanger, condenser
Chemical equipments
Electronics
Electronics
Bolt and nut
Valve
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
PRODUCT PROFILE
Round bar / Wire rod (Diameter): 0.50mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Round bar / Wire rod (Diameter): 0.50mm to 800mm
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: T4 - 200mm X W1000- 2500mm X L1000-12000mm
Sheet steel via cold rolled: T0.5 - 4mm X W600- 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 with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
Pipes / Tubings: OD 3-219 mm, with wall thickness ranging from 0.50 to 35 mm.
Sheet steel via cold rolled: T0.5 - 4mm X W600- 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 with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
Pipes / Tubings: OD 3-219 mm, with wall thickness ranging from 0.50 to 35 mm.
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