C27200 brass pipe product introduction

2021-09-01 15:43:17

C27200 brass pipe, typical aluminum brass, has high strength and hardness, good plasticity, can be pressure processed in cold and hot states, has good corrosion resistance to sea water and salt water, and impact corrosion, but it has Dezincification and corrosion cracking tendency. Used in ships, etc. as condensing pipes and other corrosion-resistant parts.

Chemical composition of C27200 brass pipe:

Copper Cu: 76.0～79.0

Zinc Zn: margin

Lead Pb: ≤0.05

Phosphorus P: ≤0.02

Aluminum Al: 1.8～2.3

Iron Fe: ≤0.06

Antimony Sb: ≤0.05

Arsenic As: 0.03～0.06

Bismuth Bi: ≤0.002

Note: ≤0.3 (sum of impurities)

Mechanical properties

Tensile strength ≥245MPa

Elongation ≥40%

Heat treatment specification:

Thermal processing temperature 720~770℃

Annealing temperature 600~650℃

The temperature for eliminating internal stress is 270~350℃.