ASTM A453 Gr.665A
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Material standard specification for high-temperature bolting, alloy 665A with expansion coefficients comparable to austenitic stainless steel ASTM A453 grade 665A datasheet,ASTM A453 grade 665A Chemical compositions, ASTM A453 grade 665A 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 A453
TECHNICAL SPECIFICATION - ASTM A453 GRADE 665A
TECHNICAL SPECIFICATION: ASTM A453 - 2011
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
MATERIAL CATEGORY: high-temperature bolting, with expansion coefficients comparable to austenitic stainless steel
CHEMICAL COMPOSITION (WEIGHT %)
C (％): ≤ 0.08
Si (％): 0.10 ~ 0.80
Mn (％): 1.25 ~ 2.00
P (％) ≤: 0.040
S (％) ≤: 0.030
Cr (％): 12.0 ~ 15.0
Ni (％): 24.0 ~ 28.0
Mo (％): 1.25 ~ 2.25
Ti (%): 2.70 ~ 3.30
Al (%): ≤ 0.25
B (%): 0.01 ~ 0.07
Cu (%): ≤ 0.25
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Form: rod and bar
Condition: solution treated 980 +/-14 Deg. hold 3h, liquid quench. hardening treatment 730 ~ 760 Deg. hold 20h, furnace cool to 650 +/-14 Deg. hold 20h, air cool
Form: rod and bar
Condition: solution treated 980 +/-14 Deg. hold 3h, liquid quench. hardening treatment 730 ~ 760 Deg. hold 20h, furnace cool to 650 +/-14 Deg. hold 20h, air cool
Tensile strength,σb/≥ MPa: 1170
Yield strength, σ0.2/≥ MPa: 830
Elongation, δ ≥(％): 12.0
Reduction of area, ф ≥ (％): 15.0
Hardness | HBW: 311 ~ 388
Yield strength, σ0.2/≥ MPa: 830
Elongation, δ ≥(％): 12.0
Reduction of area, ф ≥ (％): 15.0
Hardness | HBW: 311 ~ 388
Hardness | HRC: 32 ~ 41
STRESS RUPTURE REQUIREMENT
Test temperature: 650 Deg.
Stress /MPa: 515 min.
Time to rupture: 100h min.
Elongtation, (%): 3.0 min.
TYPICAL APPLICATIONS
Starndard specification for high-temperature bolting, with expansion coefficients comparable to austenitic stainless steel with yield strength ranging from 345 to 827 MPa for use in high-temperature service such as fasteners for pressure vessel and valve flanges.
Nuclear reactor
Turbine engine parts - mechanical gears, gear shaft, main axis, blade
Mechanical parts - bolt and nut, fastener
Gas turbine blade
Fuel nozzle
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 SHAPESThese materials must stand up to high heat, extreme oxidation potential and recycling.
Round bar (Diameter): 2.0mm 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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