精品国产综合久久_欧美日韩精品免费观看视一区二区_国产又爽又黄的激情精品视频_国产偷久久久精品专区

Category

類別

Trade
mark

牌號

Chemical composition

主要成份(%)

Characteristics & application

特性和用途

Equivalent to AWS

相當AWS

Hardfacing

硬

面

堆

焊

S 101

C3 Cr28 Ni4
Si3.5 Fe Rem.

HRc48-54. Resistance to wear, gas corrosion and oxidation. Hardfacing of bucket tooth and case pump.
HRc48-54，耐磨、耐氣蝕、抗氧化。堆焊鏟斗齒，泵套

S 111

C1 Cr29 W5
Co Rem.

HRc38-47. Resistance to wear and corrosion at high-temperature. Hardfacing of high temperature and pressure valve.
HRc38-47，高溫下耐磨、耐蝕。堆焊高溫高壓閥門

ECoCr-A

S 112

C1.5 Cr29 W8
Co Rem.

HRc45-50. Resistance to wear and corrosion at high-temperature. Hardfacing of valve and hot-rolling pass.
HRc45-50，高溫下耐磨、耐蝕。堆焊閥門，熱軋孔型

ECoCr-B

S 113

C2.5 Cr30 W17
Co Rem.

HRc≥55. Wear and heat resistance at high temperature, bad shock resistance. Hardfacing of screw charging carriage.
HRc≥55，高溫下耐磨、耐熱，但抗沖擊性差。堆焊螺旋送料機用

S 114

C2.5 Cr30 W12
Co Rem.

HRc≥53. Wear and heat resistance at high temperature, bad shock resistance. Hardfacing of three-cone bit.
HRc≥53，高溫下耐磨、耐熱，但抗沖擊較差。堆焊牙輪鉆頭

ECoCr-C