Titanium Grade 7

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Ti Grade 7, Most corrosion-resistant titanium alloy offering outstanding resistance to general and localized crevice corrosion in a wide range of oxidizing and reducing acid environments including chlorides, with a good balance of moderate strength, reasonable ductility and excellent weldability. Physical and mechanical properties equivalent to Grade 2.

Chemical Analysis of Titanium Grade 7

Chemical composition (weight %)

Others

Residuals

0.25Max.

0.03Max

0.08Max

0.015Max.

0.30Max

0.12-0.25

0. 4Max.

Bal

Standard: ASTM B338/ASME SB338, ASTM B861/ASME SB 861, ASTM B862/ASME SB862

Size: OD: 6.0mm—150mm; Wall Thickness: 0.4mm—15mm; Length: 15000mm(Max.)

Main Specification:

Grade No.	Situation	Manufacture Process	OD(mm)	Thickness (mm)
Grade No.	Situation	Manufacture Process	OD(mm)	0.5	0.6	0.7	0.8	1.0	1.25	1.5	2.0	2.5	3.0	3.5	4.0	4.5	5.0	5.5	6.0	6.5	7.0
GR7	Annealed	Cold-rolled (Cold-drawn)	10-15	o	o	o	o	o	o	o	o	-	-	-	-	-	-	-	-	-	-
			>15-20	-	o	o	o	o	o	o	o	o	-	-	-	-	-	-	-	-	-
			>20-30	-	o	o	o	o	o	o	o	o	-	-	-	-	-	-	-	-	-
			>30-40	-	-	-	-	-	o	o	o	o	-	-	-	-	-	-	-	-	-
			>40-50	-	-	-	-	-		o	o	o	o	-	-	-	-	-	-	-	-
			>50-60	-	-	-	-	-	-	o	o	o	o	o	-	-	-	-	-	-	-
			>60-80	-	-	-	-	-	-	-	o	o	o	o	o	o	o	o	o	-	-
			>80-100	-	-	-	-	-	-	-	-	o	o	o	o	o	o	o	o	o	-
			>100-110	-	-	-	-	-	-	-	-		o	o	o	o	o	o	o	o	o
		Welded	16	o	o	o	o	-	-	-	-	-	-	-	-	-	-	-	-	-	-
			19	o	o	o	o	o	-	-	-	-	-	-	-	-	-	-	-	-	-
			25.27	o	o	o	o	o	o	-	-	-	-	-	-	-	-	-	-	-	-
			31,32,33	-	-	o	o	o	o	o	o	-	-	-	-	-	-	-	-	-	-
			38	-	-	-	-	-	-	o	o	o	-	-	-	-	-	-	-	-	-
			50	-	-	-	-	-	-	-	o	o	-	-	-	-	-	-	-	-	-
			63	-	-	-	-	-	-	-	o	o	-	-	-	-	-	-	-	-	-
		Welded+ Rolled	6-10	o	o	o	o	o	-	-	-	-	-	-	-	-	-	-	-	-	-
			>10-15	o	o	o	o	o	o	-	-	-	-	-	-	-	-	-	-	-	-
			>15-20	o	o	o	o	o	o	o	-	-	-	-	-	-	-	-	-	-	-
			>20-25	o	o	o	o	o	o	o	-	-	-	-	-	-	-	-	-	-	-
			>25-30	o	o	o	o	o	o	o	-	-	-	-	-	-	-	-	-	-	-