ASTM A453 Gr.660D
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Specification GR.660D datasheet, 660D chemical, ASTM A453 660D 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 B453 - 2011.
TECHNICAL SPECIFICATION - ASTM A453 GRADE 660D
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 (％): ≤ 1.00
Mn (％): ≤ 2.00
P (％) ≤: 0.040
S (％) ≤: 0.030
Cr (％): 13.5 ~ 16.0
Ni (％): 24.0 ~ 27.0
Mo (％): 1.00 ~ 1.50
W (%): -
Ti (%): 1.90 ~ 2.35
Nb (%): -
Al (%): ≤ 0.35
Al (%): ≤ 0.35
V (%): 0.10 ~ 0.50
B (%): 0.001~ 0.010
B (%): 0.001~ 0.010
Cu (%): -
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Form: rod and bar
Condition: solution 900 +/-14 Deg. hold 2h min. and liquid quenching
Form: rod and bar
Condition: solution 900 +/-14 Deg. hold 2h min. and liquid quenching
hardening 720 +/-14 Deg, hold 16h, air cool followed by 650 +/-14 Deg, air cool
Tensile strength,σb/≥ MPa: 895
Yield strength, σ0.2/≥ MPa: 725
Elongation, δ ≥(％): 15.0
Reduction of area, ф ≥ (％): 18.0
Hardness | HBW: 248 ~ 341
Tensile strength,σb/≥ MPa: 895
Yield strength, σ0.2/≥ MPa: 725
Elongation, δ ≥(％): 15.0
Reduction of area, ф ≥ (％): 18.0
Hardness | HBW: 248 ~ 341
Hardness | HRC: 24 ~ 37
STRESS RUPTURE REQUIREMENT
Test temperature: 650 Deg.
Stress /MPa: 385 min.
Time to rupture: 100h min.
Elongtation, (%): 5.0 min.
TYPICAL APPLICATIONS
Standard specification for high-temperature bolting, with expansion coefficients comparable to austenitic stainless steel with yield strength ranging from 345 to 827MPa for use in high-temperature service such as fasteners for pressure vessel and valve flanges.
Standard specification for high-temperature bolting, with expansion coefficients comparable to austenitic stainless steel with yield strength ranging from 345 to 827MPa 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
These materials must stand up to high heat, extreme oxidation potential and recycling.
FORMS AND SHAPES
Round bar (Diameter): 2.0mm to 400mm
Square bar / Flat bar: 3mm to 500mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
Fuel nozzle
These materials must stand up to high heat, extreme oxidation potential and recycling.
FORMS AND SHAPES
Round bar (Diameter): 2.0mm to 400mm
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
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers. E-mail: sales@ccsteels.com
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers. E-mail: sales@ccsteels.com
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