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A 688 N08800

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A 479 N08800 B 163 N08800
#Type #332 #N08800

Description

USA SAE A 688/A 688M (2012), A 688 N08800 Specialsteel Welded Austenitic Stainless Steel Feedwater Heater Tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 688 N08800
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 688 N08800 Austenite SAE USA Welded Austenitic Stainless Steel Feedwater Heater Tubes

Chemical composition(mass fraction)(wt.%) of the A 688 N08800

C Mn Si P S Cr Ni Mo Ti Al
≤0.01 ≤1.50 ≤1.00 ≤0.045 ≤0.015 19.00 -23.00 30.00 -35.00 ≤ ≥ 0.15 -0.60 0.15 -0.60

Mechanical Properties of steel grade A 688 N08800

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
222 (≥) 441 (≥) 21 34 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical Properties of steel grade A 688 N08800

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
34 - -     0.42 -  
563 394 - 31.3 214   -  
325 - 22 21.2   423 322

Heat Treatment of steel grade A 688 N08800

Heat treated : 1996°C - 1977°C

Technological Curves of steel grade A 688 N08800

Cross Reference Table (Equivalent Grade) of A 688 N08800

Grade Standard Country Application
Type1
Type2
A606 Type2
A606 Type4
A656 Type3
A656 Type7
A871 TypeⅠ
A871 TypeⅡ
A871 TypeⅢ
A871 TypeⅣ
19Cr-10Ni(Cutting type)
12Cr(Cutting type)
ASTM TypeⅠ
ASTM TypeⅡ
ASTM ClassⅠType A
ASTM ClassⅠType B
ASTM ClassⅠType C
ASTM ClassⅠType D
ASTM Class ⅡType A
ASTM Class ⅡType B

Relevant standard of A 688 N08800

A 688/A 688M (2012) Welded Austenitic Stainless Steel Feedwater Heater Tubes A-688-A-688M-(2012).pdf
A 479 N08800 B 163 N08800
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

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