ASTM A285 Grade B karfe farantin karfe

ASTM A285 ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙa'idodin jirgin ruwa, faranti na ƙarfe, ƙarancin ƙarfi da tsaka-tsaki

Kauri: 6mm zuwa 300MM,
Nisa: 1500mm zuwa 4050mm,
Tsawon: 3000mm zuwa 15000mm

Abun Halitta na A285 B
Daraja	Mafi Girman Element (%)
	C	Si	Mn	P	S
Babban darajar B285	0.22	0.08-0.45	0.98	0.035	0.035

Daidaiton Carbon: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

Daraja		Matsayin A285 B  Kayan Injiniya
	Kauri	yawa	Tashin hankali	Tsawaitawa
Babban darajar B285	mm	Min Mpa	Mpa	Min %
	6-50	185	345-485	28%
	50-200	185	345-485	25%

Takardun Magana:

ASTM Sandards:

A20 / A20M: Gabaɗayan buƙatun don faranti na ƙarfe don tasoshin matsa lamba.

Gabaɗaya Bukatu da Bayanin oda:

Gwaji da sake gwadawa hanyoyin, hanyoyin, jurewa girma, taro, inganci da lahani na gyarawa, yin alama, lodi da oda bayanai zasu bi A20/A20M.
Ƙarin ƙarin buƙatun asali, akwai wasu ƙarin buƙatun.
Ana cire coils daga A285 har sai an yanke su zuwa faranti.