25*200mm/1寸防爆塑柄油灰刀泥子刀黄铜油灰刀 铜铲刀包邮

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品牌：集兴牌型号：25*200mm刀体材质：黄铜手柄材质：塑胶全长：200mm宽度：25mm重量：0.3kg详细说明

1.What is a "non-sparking" tool?

"Nonsparking", "spark reduced", "spark resistant" or "spark proof" tools are names given to tools made of metals such as brass, bronze, Monel metal (copper nickel alloy), copper aluminum alloys (aluminum bronze), or copper-beryllium alloys (beryllium bronze).

Commonly used hand tools are often manufactured of steel alloys. Preferred "nonsparking" metals have less tensile strength than steels usually used to make tools. A lower tensile strength means the metal has less strength or resistance to tearing apart when stretched under test conditions. It also means that these tools are softer, wear down more quickly than ordinary steel tools, and have to be dressed more frequently.

2.Explosion-proof tools technology parameters

1. Beryllium bronze explosion-proof tools explosion-proof performance

(a) Standard code: GBEx II C

(b) Hardness: HRC35 above

(c) Tensile strength: 105-120 KGF/mm²

(d) Magnetic: 0

2. Aluminium bronze explosion-proof tools explosion-proof performance

(a) Standard code: GBEx II B

(b) Hardness: HRC255 above

(c) Tensile strength: 78-85 KGF/mm²