1.2731
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Specifications 1.2731 datasheet,1.2731 Chemical, 1.2731 Ring forging,1.2731 Bar steelmaking, ESR, blooming, forging, rolling,heat treatment,straightened,ultrasonic test,cold working,machined. We also possess advanced precision machining equipments for further processing. Technical standards - DIN EN 10090 (1998), DIN 17480 (1992) or by agreement.
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL SPECIFICATION DATASHEET - W-Nr 1.2731
MATERIAL CATEGORY - Valve steel
MATERIAL SPECIFICATIONS - DIN EN 10090 (1998), DIN 17480 (1992)
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.45 ~ 0.55
Si (％): 1.20 ~ 1.50
Mn (％): 0.60 ~ 0.80
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 12.0 ~ 14.0
Ni (％): 12.5 ~ 13.5
Mo (％): —
W (％): 1.50 ~ 2.80
Si (％): 1.20 ~ 1.50
Mn (％): 0.60 ~ 0.80
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 12.0 ~ 14.0
Ni (％): 12.5 ~ 13.5
Mo (％): —
W (％): 1.50 ~ 2.80
V (%): 0.30 ~ 1.00
MECHANICAL PROPERTIES / HEAT TREATMENT OR Q/T
Hot forming temperature /℃: 1050～850
Heat treatment temperature and cooling method | annealed: -
Heat treatment temperature and cooling method | quenched: 1000～1050 oil/water
Heat treatment temperature and cooling method | tempered: 700~750
Mechanical property |σb/MPa: 780～980
Mechanical property |σs≥/MPa: 390
Mechanical property |δ5≥(％): 25
Mechanical property |ψ≥(％): 35
Mechanical property above 400℃ σb/MPa，at following temperature /℃|400: -
Mechanical property above 400℃ σb/MPa，at following temperature /℃|500: 660
Mechanical property above 400℃ σb/MPa，at following temperature /℃|600: 560
Mechanical property above 400℃ σb/MPa，at following temperature /℃|700: 410
Mechanical property above 400℃ σb/MPa，at following temperature /℃|800: 260
Hot forming temperature /℃: 1050～850
Heat treatment temperature and cooling method | annealed: -
Heat treatment temperature and cooling method | quenched: 1000～1050 oil/water
Heat treatment temperature and cooling method | tempered: 700~750
Mechanical property |σb/MPa: 780～980
Mechanical property |σs≥/MPa: 390
Mechanical property |δ5≥(％): 25
Mechanical property |ψ≥(％): 35
Mechanical property above 400℃ σb/MPa，at following temperature /℃|400: -
Mechanical property above 400℃ σb/MPa，at following temperature /℃|500: 660
Mechanical property above 400℃ σb/MPa，at following temperature /℃|600: 560
Mechanical property above 400℃ σb/MPa，at following temperature /℃|700: 410
Mechanical property above 400℃ σb/MPa，at following temperature /℃|800: 260
REMELTING PROCESS
Valve steel is generally smelt in electric arc furnace or induction furnace. For higher quality,it should be smelt via technology of vacuum refining and external refining.
TECHNICAL SALES ASSISTANCE
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.
PRODUCT PROFILE AND DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 500mm
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): 5.5mm to 500mm
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: T60 - 400mm X W60 - 1000mm X L1000-12000mm
Sheet steel via cold rolled: T0.5 - 6mm 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: OD30 - 1500 mm, with wall thickness ranging from 10 to 350 mm.
Sheet steel via cold rolled: T0.5 - 6mm 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: OD30 - 1500 mm, with wall thickness ranging from 10 to 350 mm.
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