C72200 Tube, CA722, Cupronickel with Chromium

C72200 Tube, CA722, Cupronickel with Chromium
STEELMAX Metal Story

C72200 Tube 는, 큐프로니켈에 크롬합금, 동합금 입니다.
열간성형 — hot forming

냉간 작업성 — cold worked 좋은 금속입니다.
ASTM B111 C72200 은 빠른 유속으로 인한

빠른 부식이 유발되는 해수 (sea-water),
marine 용, Tube 제품입니다.

C72200 tube 는, condenser, heat exchanger,
saltwater tube 용도로 사용되며, Density 8.94 g/㎤ 입니다.

Coefficient of liner thermal expansion : 15.8 μm/m.K at 200~300℃
Thermal conductivity : 34.5 W/m.K at 20℃

※ Temper (질별 : 質別)
금속 또는 합금에 요구되는 특정한 물리적 및/또는 기계적 성질을
부여하는 공정으로 (예를 들어 기계적 처리 및/또는 열처리) 후의
제품의 상태를 말합니다.

The state of material after the necessary treatment is processed for
the purpose of giving the particular physical or mechanical property
to wrought products and alloy products.

For the treatment to wrought copper and copper alloys,
heat treatment and cold working are known.
The symbol and concept of temper specified in the existing
JIS are shown as follows.

※ 냉간 가공 (Cold-working : 冷間加工)
가공 경화가 나타나는 온도에서의 금속 또는 합금의 소성 변형을 말합니다
Plastic processing method of metal or alloy which is carried out within such a
temperature range that strain hardening occurs.

※ Drawing (인발 : 引拔)
The process of pulling material through a die to reduce the size,
change the cross sectional shape, or to harden the material
소재를 잡아 당겨, 다이를 통과시키면서 단면적이나 크기를
줄여 나가거나, 금속을 경화 시키기도 하는 방법

※ 백동 (白銅 : Copper-Nickel Alloy, Cupronickel)
Alloy containing copper as the principal component 9.0~33.0% of nickel,
0.40~2.3% of iron, 0.20~2.5% of manganese and not more than 1.0% of zinc.
JIS H3100 : C7060, C7150
ASTM : C70600, C70620, C71000, C71500, C71520, C72200
That is excellent in sea water resistance and high temperature strength, and
used for conductive pipe for heat exchanger. Also the alloy of coins of
74.0~76.0 % of copper and 24.0~26.0 % of nickel is known.

C72200, H55, Annealed, B111, B395
Chemical composition (%)	Copper (Cu)	remainder
	Nickel (Ni)	15.0~18.0
	Lead (Pb)	0.05 max
	Iron (Fe)	0.50~1.0
	Zinc (Zn)	1.0 max
	Molybdenum (Mo)	1.0 max
	Chromium (Cr)	0.30~0.70
	Silicon (Si)	0.03 max
	Titanium (Ti)	0.03 max
Tensile strength (ksi/MPa)		50/345
Yield strength (ksi/MPa)		45/310

Temper codes	Temper Names
H50	Hot Extruded and Drawn
H52	Hot Pierced and Drawn
H55	Light Drawn, Light Cold-Worked
H58	Drawn General Purpose
H60	Cold Heading, Formed
H63	Rivet
H64	Screw
H66	Bolt
H70	Bending
H80	Hard Drawn