ASTM A453 Gr.651B
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Material standard specifications for high-temperature bolting, ASTN A453 651B with expansion coefficients comparable to austenitic stainless steel ASTM A453 GR.651B datasheet, ASTM A453 651B Chemical compositions,ASTM A453 GR.651B mechanical properties from Steelmaking, 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 651B
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 (％): 0.28 ~ 0.35
Si (％): 0.30 ~ 0.80
Mn (％): 0.75 ~ 1.50
P (％) ≤: 0.040
S (％) ≤: 0.030
Cr (％): 18.0 ~ 21.0
Ni (％): 8.00 ~ 11.0
Mo (％): 1.00 ~ 1.50
W (%): 1.00 ~ 1.75
Ti (%): 0.10 ~ 0.30
Nb (%): 0.25 ~ 0.60
Al (%): -
Al (%): -
V (%): -
B (%): -
B (%): -
Cu (%): ≤ 0.50
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Form: rod and bar
Condition: hot-cold worked at 650 Deg min.with 15% min.reduction in cross-sectional area, stress-relief anneal 730 Deg. min. or 4h min.
Form: rod and bar
Condition: hot-cold worked at 650 Deg min.with 15% min.reduction in cross-sectional area, stress-relief anneal 730 Deg. min. or 4h min.
Tensile strength,σb/≥ MPa: 655
Yield strength, σ0.2/≥ MPa: 415
Elongation, δ ≥(％): 18.0
Reduction of area, ф ≥ (％): 35.0
Hardness | HBW: 212 ~ 269
Yield strength, σ0.2/≥ MPa: 415
Elongation, δ ≥(％): 18.0
Reduction of area, ф ≥ (％): 35.0
Hardness | HBW: 212 ~ 269
Hardness | HRC: 28 max.
STRESS RUPTURE REQUIREMENT
Test temperature: 650 Deg.
Stress /MPa: 275 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
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): 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.
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: lh.steel@hotmail.com
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers. E-mail: lh.steel@hotmail.com
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