K91271
2019-10-22 13:49:32 Origin： Remark：0 Click：
Standard Specification for forged or rolled alloy and stainless steel pipe flanges,forged fittings,and valves and parts for high temperature service K91271 datasheet, K91271 Chemical compositions, K91271 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 A182 - 2018.
TECHNICAL DATA SHEET - UNS K91271
MATERIAL TECHNICAL STANDARDS: ASTM A182 - 2018
MATERIAL TYPE: 11.0Cr - 2W - 1Cu - 0.4Mo - 0.20V Alloy steel
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.07 ~ 0.14
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.07 ~ 0.14
Mn (％): ≤ 0.70
Si (％): ≤ 0.50
Si (％): ≤ 0.50
P (％)≤: 0.020
S (％)≤: 0.010
Cr (%): 10.0 ~ 11.50
Mo (%): 0.25 ~ 0.60
S (％)≤: 0.010
Cr (%): 10.0 ~ 11.50
Mo (%): 0.25 ~ 0.60
Ni (%): ≤ 0.50
Nb (%): 0.04 ~ 0.10
N (%): 0.005 ~ 0.015
V (%): 0.15 ~ 0.30
W (%): 1.50 ~ 2.50
Cu (%): 0.30 ~ 1.70
B (%): ≤ 0.005
Al (%): ≤ 0.020
TYPICAL MECHANICAL PROPERTIES
Tensile strength, σb/≥ MPa: 620
Yield strength, σ0.2/MPa: 400
Elongation, δ ≥(％): 20.0
Reduction of area, ф ≥ (％): 40.0
Hardness via heat treatment /HBW: 250 Max.
Reduction of area, ф ≥ (％): 40.0
Hardness via heat treatment /HBW: 250 Max.
HEAT TREATMENT PRACTICE
Condition: Solution annealed 1040 ~ 1080 Deg. C
Cooling medium: air cool
Tempering temperature: 730 ~ 800 Deg. C
PRODUCT DESCRIPTION
The alloy is usually produced by BEF / BEF + AOD / EAF, 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 650mm
Square bar / Flat bar: 3mm to 600mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 ~ 400mm X W200 ~ 1000mm X L1000 ~ 3500mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
The alloy is usually produced by BEF / BEF + AOD / EAF, 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 650mm
Square bar / Flat bar: 3mm to 600mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 ~ 400mm X W200 ~ 1000mm X L1000 ~ 3500mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical inquiry. pleased to EMAIL ( lh.steel@hotmail.com ) our resident team of qualified production engineers.
If you meet further on any technical inquiry. pleased to EMAIL ( lh.steel@hotmail.com ) our resident team of qualified production engineers.
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