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Lehae > Lihlahisoa > Letlapa la tšepe > Hight Strength Low Alloy Steel
Letlapa la tšepe la Q690D
Letlapa la tšepe la Q690D
Letlapa la tšepe la Q690D
Letlapa la tšepe la Q690D

Letlapa la tšepe la Q690D

Q690D matla a phahameng a tjheseletsa poleiti ea tšepe e sebelisoang bakeng sa likepe tse kholo, Marokho, lisebelisoa tsa semela sa motlakase, li-boilers tse mahareng le tse phahameng, likepe tse nang le khatello e matla, likoloi tsa literene, metjhini ea ho phahamisa, mechini ea merafo le meaho e meng e meholo ea tjheseletsa.
Sebopeho sa Lik'hemik'hale

Kereiti

Tlhokahalo ea lik'hemik'hale kapa element Max %

C

Si

Mong

P

S

Cu

Kr

Ni

Mo

B

V

Nb

Ti

Q690D

0.2

0.8

1.7

0.025

0.015

0.5

1.5

2

0.7

0.005

0.12

0.06

0.05

Thepa ea Mechini
Q690 Steel Mechanical Properties
Q690 Yield Strength (≥N/mm2); Botenya kapa Dia. d (mm)
Standard Kereiti ea tšepe Boleng d≤16 16 40 63
GB/T 1591 - 2008 Q690 C, D, E 690 670 660 640
GB/T 1591 - 2018 Q690M C, D, E 690 680 670 650
Q690 Tensile Strength (N/mm2); d (mm) Elongation
Standard Kereiti ea tšepe Boleng d≤40 40 63 %
GB/T 1591 - 2008 Q690 C, D, E 770-940 750-920 730-900 ≥14
GB/T 1591 - 2018 Q690M C, D, E 770-940 750-920 730-900 ≥14
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