Q345E lakane e chesang e kolobisitsoeng ea tšepe

Q345 steel ke Chinese GB standard ya Low Alloy High Strength Structural Steel, boima ba thepa ke 7.85 g/cm3, tensile strength ke 470-630 Mpa, mme matla a tlhahiso ke 345 MPa, e na le thepa e betere ho feta Q235. Ho latela GB/T 1591 – 2008, thepa ea Q345 e na le likarolo tse 5 tsa boleng: Q345A, Q345B, Q345C, Q345D le Q345E.

Q345 tšepe e na le weldability e ntle, e batang & e chesang e sebetsang le ho hanyetsa kutu. E sebelisoa haholo ka marokho, likepe, li-boilers, likepe tsa khatello, litanka tsa polokelo ea peterole, mochini o phahamisang lipalangoang le likarolo tse ling tse nang le meroalo e phahameng e cheselitsoeng.

Thepa ea mochini oa Q345E tšepe e tlase ea alloy:

Botenya (mm)
Q345E	≤ 16	> 16 ≤ 35	> 35 ≤ 50	>50
Matla a tlhahiso (≥Mpa)	345	325	295	275
Tensile strength (Mpa)	470-630

Motsoako oa lik'hemik'hale bakeng sa Q345E low alloy structural steel (Heat Analysis Max%)

Lintho tse ka sehloohong tsa lik'hemik'hale tsa Q345E
C	Si	Mong	P	S	V	Nb	Ti	Al (min.)
0.18	0.55	1.00-1.60	0.025	0.025	0.02-0.15	0.015-0.060	0.02-0.20	0.015

Litlhoko tsa Tekheniki le Litšebeletso tse Eketsehileng:
♦ Teko ea ho ama mocheso o tlase
♦ Ho seha le ho cheselletsa ho latela litlhoko tsa mosebelisi
♦ Ho na le lithibelo tse ling tsa lik'hemik'hale tse ling
♦ Setifikeiti sa tlhahlobo sa Orginal Mill se fanoeng tlas'a EN 10204 FORMAT 3.1/3.2
♦ Teko ea Ultrasonic tlasa GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578

LBH
P: Nako ea hau ea ho fana ka nako e kae?
A: Ka kakaretso ke matsatsi a 5-10 haeba thepa e le teng. kapa ke matsatsi a 15-20 haeba thepa e le sieo, ho latela bongata.

P: O fana ka mehlala? na ke mahala kapa ho feta?
A: E, re ka fana ka sampole mahala empa u se ke ua lefa litšenyehelo tsa thepa.