Bar keluli tahan karat 904L_Tianjin Fang keluli keluli Co., Ltd

904L Tong besi yang tidak stainless

904LGrade adalah baja stainless besi yang tidak stabil yang mengandungi logasi tinggi karbon rendah。Tambah tembaga ke aras ini untuk meningkatkan resistensinya terhadap asid pengurangan kuat，Terutama resistensi terhadap asid sulfur telah meningkat jauh。Ia juga mempunyai tahan kuat terhadap erosi klorid，Termasuk kerosakan pitting/Gap korrosion dan retak korrosion tekanan。

keterangan produk

Parameter produk

Nama produk		904LTong besi yang tidak stainless
Jenis		Bar Besi
diluar diameter	Rod bulat	4mm-500mm
	bar heksagon	18mm-57mm (11/16″ to 2-3/4″)
	rod kuasa dua	18mm-47mm (11/16″ to 1-3/4″)
	Besi rata	1/2” to 10”，tebal：2mm-150mm，Penyesuaian tersedia
panjang		1-6nasi，Panjang boleh disesuaikan
piawai		ASTM / AISI / JIS / GB / DIN / EN
permukaan		hitam、Pencerahan cerah、pusingan kasar、Perubahan permukaan Matte、NO.4、BAkelas
Skop aplikasi		Bar besi tanpa tahi digunakan dalam berbagai industri，Contohnya, pembinaan kapal、pertahanan negara、kereta、berputar-putar dan berputar-putar、Membuat kertas dan pulp、penghasilan、simen、Peralatan dan bangunan bergerak bumi yang berat, dll.

komposisi kimia

C	Si	Mn	Cr	Ni	Mo	S	P
≤0.02	≤1.0	≤2.0	19.0～23.0	23.0～28.0	4.0～5.0	≤0.035	≤0.045

Ciri-ciri mekanik

tensil strength σb (MPa)	kekuatan hasil σ0.2 (MPa)	panjang δ5 (％)	Kekerasan
≥490	≥220	≥35	≤90HRB

ciri-ciri fizikal

Kepadatan(g/cm³)	Modul elastik(Gpa)	Koeficien pengembangan panas(10-6/ºC)	konduktiviti panas(W/m*K)	resistiviti(µΩ.cm)
8.0	195	15.5	12.0	94

Sebelumnya:444 bar keluli tahan karat Seterusnya:254SMO keluli tahan karat bar

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