ASTM A709 bir ah

Taxandh dhismeed bir ah oo aad u sarreeya, oo hooseeysa oo lagu isticmaalo samaynta buundooyinka. Kaydka birta ee Gnee A709 Fasalka 36, ​​A709 Fasalka 50 iyo A709 Fasalka 50W. Darajooyinkan waxaa badanaa lagu qeexaa imtixaannada Charpy oo tixraacaya aagga gaarka ah ama heerkulka adeegga ee la filayo. Tijaabooyinka Charpy waxaa lagu qeexay inay yihiin kuwo aan jabin oo halis ah, taas oo ah tijaabada kulaylkaba (soo noqnoqda "H"), ama jabka muhiimka ah, kaas oo ah tijaabada saxan kasta (Frequency "P").

Tilmaamaha:
Dhumucda: 3mm--150mm
Ballaca: 30mm--4000mm
Dhererka: 1000mm--12000mm
Heerka: ASTM EN10025 JIS GB

ASTM A709 (Fasalka 36, ​​50 iyo 50W) Halabuurka Kiimikada

A709 Birta Halabuurka
	Fasalka 36	Fasalka 50	Fasalka 50W
Kaarboon	0.26%	0.23%	0.2% ugu badnaan
Manganese	…	1.35%	0.75-1.35%
Fosfooraska	0.04%	0.03% ugu badnaan	0.03% ugu badnaan
Baaruud	0.05%	0.03% ugu badnaan	0.03% ugu badnaan
Silikoon	0.4% ugu badnaan	0.15-0.4%	0.15-0.5%
Nikkel	…	…	0.5% ugu badnaan
Chromium	…	…	0.4-0.7%
Copper	0.2%	…	0.2-0.4%
Vanadium	…	…	0.01-0.1%

Guryaha Makaanikada 709 Gr 36:

Xannibaadda: 58 ilaa 80 ksi
Soo saarista:36 ksi min
Kordhinta: 18% min 8" 21% min 2"

Guryaha Makaanikada 709 Gr 50:

Xoojinta: 65 min ksi
Wax-soo-saarka: 50 ksi min
Kordhinta: 16% min 8" 19% min 2"

Guryaha Makaanikada 709 Gr 50W:

Xoojinta: 65 min ksi
Wax-soo-saarka: 50 ksi min
Kordhinta: 16% min 8" 19% gudaha 2"