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    The quality policy of HongRui United Group(former HongFeng Industry Group) is empoldering and producing good products of cored wires 、calcium metal 、Rare earth 、 W and Mo and at the same time improving products’ quality and service quality to satisfy market need in the development international market. All our factories passed the system of quality certification of ISO 9001:2000. We have the perfect qulity management and quality assurance systems and professional detection term and advanced detection equipments. There are atomic absorption spectrophotometer 、fluorescence spectrometer and thing mensuration instrument which can complete performance detection of all our products in our detection center . With our own strong technical inspection center and complete quality control system, we strictly control every procedures from raw material to the finished products, and also we apply the national quality standard to the production process to guarantee the correct of the inspection result.

GB/T4864
-1995

Chemical composition

Calcium metal

Ca

Impurity max%

min%

Fe

Ni

Mn

Cu

Mg

Al

Si

Cl

N

Ca-3
≥99.9
0.001
0.001
0.001
0.005
0.012
0.001
0.002
0.065
0.01
Ca-2
≥99.0
0.02
0.004
0.008
0.03
0.1
0.02
0.008
0.2
0.05
Ca
≥98.5
0.01
0.005
0.03
0.003
0.8
0.3
0.01
0.2
0.002
calcium lump
≥99.0
0.01
0.005
0.02
0.003
0.4
0.5
0.002
0.2
0.002
calcium granular
≥98.5
0.05
0.005
0.02
0.003
0.8
0.4
0.002
0.2
0.002
calcium turning

 ≥ 98.5

0.01

0.005

0.02

0.003

0.4

0.5

0.002

0.2

0.002

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