Standard: JIS H4600 Pure titanium KS40S (JIS category 1) Material production (Low polish AP)
Producer: Kobe Steel, Ltd.
Certificate of incombustibility: Approved by Minister of Land, Infrastructure and Transport NM-8596
Features of Super AP
Titanium is resistant to corrosion meaning that it will never corrode in natural environments and is the perfect roofing material for the harsh conditions in coastal and hot spring regions. Further, it has many benefits including its lightness (half the weight of copper), its low heat expansion (half that of stainless steel), and its minimal effect on the environment due to low levels of elution. Super AP from Kobe Steel takes these features of titanium to an even higher level. Details of each of these are below.
Color change
Titanium changes color through the abnormal growth of oxidized film on the surface. Controlling this abnormal growth requires the surface to be clean. Super AP by Kobe Steel seldom changes color due to the dirty layers being completely removed.
A solid color with less variation in brilliance
Metal sheets can appear more black or white due to surface brilliance. This variation is due to the roughness of the surface. At Kobe Steelworks they use a unique facility to make the metal as rough as a crystal grain, controlling this brilliance.
Undistorted and soft titanium
Super AP by Kobe Steel is made into fine grains the size of crystal grains through its quick annealing, making the titanium ideal for roofing. It has few blemishes and is soft.

Physical properties of Titanium and other materials
	Pure titanium	Iron	SUS304	Aluminum	Copper	Glass
Relative weight	4.51	7.9	8.0	2.7	8.9	2.4
Melting point（℃）	1668	1530	1400	660	1083	800
Young’s modulus（GPa)	106	192	199	69	117	98
Electric conduction（compared to Cu)	3.1	18.0	2.4	64	100	-
Expansion factor（x10⁻⁶/℃）	8.4	12	17	23	17	9
Relative heat（J/Kg・K)	520	460	500	880	390	1050

Properties of Titanium
Property	Example
Outstanding corrosion resistance	Complete resistance to sea water
Light	60% lighter than stainless steel
Hardly any heat expansion	50% less expansion than stainless steel
High electric conductivity	30 times as conductive as copper
Incombustibility	Certificate of Incombustibility (Number NM-8596)
Designability	Color change achieved through anodic oxidation

Titanium stock list
Thickness (ｍｍ）	Category	Width (ｍｍ）	Length （ｍｍ）	Weight of 1m（Ｋｇ/ｍ）
0.30	TR270	455	COIL	0.62
		914	COIL	1.24
0.40	TR270	914	COIL	1.65