ASTM A453 Gr.665B
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Material standard specification for high-temperature bolting, A453 665B with expansion coefficients comparable to austenitic stainless steel ASTM A453 GR.665B datasheet, ASTM A453 grade 665B Chemical compositions, ASTM A453 Gr 665B 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 A453-2011
TECHNICAL SPECIFICATION - ASTM A453 GRADE 665B
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 1095 +/-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 1095 +/-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: 1070
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