ASTM B638 Gr.662
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Standard specification for Precipitation hardening iron-base superalloy bar, B638 Gr.662 forgings, and forging stock for high-temperature service ASTM B638 Gr.662 data sheet, ASTM B638 Gr.662 Chemical compositions, mechanical properties from Steel making, ESR melted, Blooming, Forging, Hot rolling, Heat treatment, Straightening, Ultrasonic test, Cold working or Machined. All of these materials conform to Military standard, nuclear power. Technical specification ASTM B638 - 2010.
TECHNICAL SPECIFICATION - ASTM B638 GRADE 662
TECHNICAL SPECIFICATION: ASTM B638 - 2010
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
MATERIAL CATEGORY: Precipitation hardening iron base superalloy
CHEMICAL COMPOSITION (WEIGHT %)
C (％): ≤ 0.08
Si (％): ≤ 1.00
Mn (％): ≤ 1.50
P (％) ≤: 0.040
S (％) ≤: 0.030
Cr (％): 12.0 ~ 15.0
Ni (％): 24.0 ~ 28.0
Mo (％): 2.50 ~ 3.50
Ti (%): 1.55 ~ 2.00
Cu (%): ≤ 0.50
Al (%): ≤ 0.35
Al (%): ≤ 0.35
V (%): -
B (%): 0.0010 ~ 0.010
Fe (%): Remainder
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Form: bar, forgings
Condition: solution treated, at 955 ~ 1040 Deg min., hold 1h, oil or water quench
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Form: bar, forgings
Condition: solution treated, at 955 ~ 1040 Deg min., hold 1h, oil or water quench
precipitation hardening 675 ~ 760 Deg. hold 5h min. to 650 +/-10 Deg., hold 20h min., air cooling or furnace cooling
Tensile strength,σb/≥ MPa: 895
Yield strength, σ0.2/≥ MPa: 585
Elongation, δ ≥(％): 15.0
Reduction of area, ф ≥ (％): 18.0
Hardness | HBW: 248 min.
TYPICAL APPLICATIONS
Superalloy is widely used to produce the high temperature components for gas turbine in the field of aviation, naval vessels and industry, such as turbine blade, guide blade, turbine disc, high pressure compressor disc, combustor, and also production of energy conversion devices, such as aerospace craft, rocket motor, nuclear reactor, petrochemical equipments, coaly transforming and so on.
Tensile strength,σb/≥ MPa: 895
Yield strength, σ0.2/≥ MPa: 585
Elongation, δ ≥(％): 15.0
Reduction of area, ф ≥ (％): 18.0
Hardness | HBW: 248 min.
TYPICAL APPLICATIONS
Superalloy is widely used to produce the high temperature components for gas turbine in the field of aviation, naval vessels and industry, such as turbine blade, guide blade, turbine disc, high pressure compressor disc, combustor, and also production of energy conversion devices, such as aerospace craft, rocket motor, nuclear reactor, petrochemical equipments, coaly transforming and so on.
Heat treating fixture
Furnace muffle
Nuclear reactor
Turbine engine parts - mechanical gears, gear shaft, main axis, blade
Mechanical parts - bolt and nut, fastener
Gas turbine
Turbine blade
Fuel nozzle
Heat treatment furnace flask and components, especially in the carbonization.
These materials must stand up to high heat, extreme oxidation potential and recycling.
FORMS AND SHAPES
Round bar (Diameter): 0.50mm to 500mm
Square bar / Flat bar: 3mm to 500mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
Furnace muffle
Nuclear reactor
Turbine engine parts - mechanical gears, gear shaft, main axis, blade
Mechanical parts - bolt and nut, fastener
Gas turbine
Turbine blade
Fuel nozzle
Heat treatment furnace flask and components, especially in the carbonization.
These materials must stand up to high heat, extreme oxidation potential and recycling.
FORMS AND SHAPES
Round bar (Diameter): 0.50mm to 500mm
Square bar / Flat bar: 3mm to 500mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
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