Grade 660 Type 2
2016-09-30 11:21:24 Origin： Remark：0 Click：
Standard specification for Precipitation hardening iron-base superalloy bar, B638 Grade 660 Type 2 forgings, and forging stock for high-temperature service Grade 660 Type 2 data sheet, UNS N66286 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 660 type 2
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 (％): ≤ 2.00
P (％) ≤: 0.040
S (％) ≤: 0.030
Cr (％): 13.5 ~ 16.0
Ni (％): 24.0 ~ 27.0
Mo (％): 1.00 ~ 1.50
Ti (%): 1.90 ~ 2.35
Cu (%): -
Al (%): ≤ 0.35
Al (%): ≤ 0.35
V (%): 0.10 ~ 0.50
B (%): 0.0010 ~ 0.010
Fe (%): Remainder
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Form: bar, forgings, forging stock
Condition: solution treated, at 980 +/- 15 Deg. hold 1h, oil or water cooling
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Form: bar, forgings, forging stock
Condition: solution treated, at 980 +/- 15 Deg. hold 1h, oil or water cooling
precipitation hardening 705 ~ 760 Deg. hold 16h, 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..
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.
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..
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.
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