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Q690D polat plastinka
Q690D polat plastinka
Q690D polat plastinka
Q690D polat plastinka

Q690D polat plastinka

Q690D Uly gämiler, köprüler, elektrik stansiýasy enjamlary, orta we ýokary basyşly gazanlar, ýokary basyşly gämiler, lokomotiw ulaglary, göteriji enjamlar, magdan enjamlary we beýleki uly kebşirleýiş desgalary üçin ulanylýan ýokary güýçli kebşirlenen gurluş polat plastinka.
Himiki düzümi

Baha

Himiki zerurlyk ýa-da element Maks%

C.

Si

Mn

S.

S.

Cu

Cr

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

Mehaniki eýeçilik
Q690 Polat mehaniki aýratynlyklary
Q690 Hasyl güýji (≥N / mm2); Galyňlyk ýa-da Dia. d (mm)
Standart Polat derejesi Hil 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 dartyş güýji (N / mm2); d (mm) Uzalma
Standart Polat derejesi Hil 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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