Tube-Xi'an Aircraft Industry Titanium Industry Co., Ltd.

Precision Tube and Shaped Tube

Special Shapes Tubes, Close Tolerence

Shapes

Standard shapes, can be produced on existing tooling: typically round, square, hexagonal, flat-oval

Special sections, require special tooling: typically elliptical, octagonal, semicircular,triangular

Tolerences

Relating to dimensions
Diameter	Diameter or equivalent D ± 0,005 mm to ± 0,10 mm depending on dimension and shape.	Mechanical properties, dependent on the type of material and on the metallurgical condition Tensile strength ± 20 to ± 30 N/mm2 Yield strength ± 30 to ± 50 N/mm2 Elongation guaranteed minimum value according to specification Hardness (Vickers micro-hardness) ± 10 to 20
	Mean wall thickness e ± 0,005 to ± 0,05 mm depending on dimension and shape
	Wall thickness deviation to 10 % of nominal wall thickness
	Ovality DM-Dm = 0,01 to 2 mm depending on diameter, wall thickness and metallurgical condition.
	Length ± 0,05 mm to ± 5 mm depending on length.

Grain size

G = 0,010 to 0,050 mm or ASTM No 9 to 6

Production availability: Straight tubes, Long or short length, Tubes in coils or on spools

Surface finish: Roughness, Ra from 0,3 to 1mmDimensions

Outside diameter: from 0,2 mm to 40 mm

Wall thickness: from 0,05 to 2,50 mm

Random straight length: up to 6,5 m

Exact length: up to 6 m

In coils: up to 1000 m depending on specification

Material	ISO	Nominal Chemical Composition	British	American	German	French	Other	Typical Properties	Typical Applications
Copper Tube	Cu-DHP	Cu>=99.85 P 0.013-0.050	C106	Cu-DHP C12200	SF-Cu 2.0090	Cu-b1		Pure copper deoxidized, high phosphorus.	Solder filled dial feet, rivets, thermometer bulbs, spark-erosion electrodes, cooling devices
Copper Tube	Cu-OF	Cu>=99.95		Cu-OF C10200	SE-Cu 2.0070	Cu-C1		Pure, Deoxidized copper, no embrittlement due to reducing gas.	Electrical Connectors, Electric cables, Medical applications.
Yellow Brass 63%	CuZn37	Cu63 Zn37		C27400	CuZn37 2.0321	CuZn36		Alloy for cold and hot working	Radio aerials, musical instruments, lighter bodies, fountain pen bodies, Bourdon springs.
Medium Leaded Brass	CuZn38Pb2	Cu61		C35300	CuZn38Pb1.5	CuZn38Pb2		Alloy with 2 phases (alpha+beta) and super-fine lead distribution, for easy machining or stamping.	Tubular free- cut pieces, musical instruments.
Red Brass 85%	CuZn15	Cu85 Zn15		C23000	CuZn15 2.024	CuZn15		Gold coloured alloy resistant to zinc loss and to stress corrosion.	Solder filled dial feet, musical instruments, fountain pen bodies.
Low Brass 80%	CuZn20	Cu80 Zn20		C24000	CuZn20 2.0250	CuZn20		The same properties. More easily cold workable	Bellows, musical instruments, solder filled dial feet, flexible wave guides, luxury products
Phosphor Bronze 6%	CuSn6	Cu94 Sn6 P0.2		C51900	CuSn6 2.1020	CuSn6P		Good wear and corrosion resistance properties	Bourdon springs, bellows
Phosphor Bronze 8%	CuSn8	Cu91.5 Sn8.5 P0.2		C52100	CuSn8 2.1030	CuSn9P		Excellent wear and corrosion resistance properties, good bending fatigue strength	Bourdon springs, bellows, electronic probes, flexible waveguides
Beryllium Copper	CuBe2	Cu98 Be2 Co0.25		C17200	2.1247			Precipitation hardening alloy extremely resistant to relaxation, fatigue, abrasion and corrosion	Bourdon springs for precision pressure gauges, flexible waveguides, tubes for connector plugs and thermic probes, radio aerials
Nickel Silver 12%	CuNi2Zn24	Cu63 Ni12 Zn24		C75700	CuNi2Zn24	CuNi2Zn24		Excellent properties for cold working, resists to tarnishing	Watch spring bars, endoscopes, musical instruments
Nickel Silver 18%	CuNi18Zn20	Cu61 Ni18 Zn21		C76400	CuNi18Zn20 2.0740			Less easily cold workable but advantageous for manufacture of springs, high corrosion resistance.	Bourdon springs, watch springs, solid profiles for watch bracelets, musical instruments, spectacle parts.
Aluminium	A199.5	A1>=99.5		AA1050A	A199.5 3.0255	1050A		High corrosion resistance, thermal and electrical conductivity, easy to work, good weldability, but low mechanical strength.	Fountain pen bodies, casings for electrochemical elements, wire clamps, cryogenic applications.
Aluminium	AlMgSi1	A1>=99.5/ Al97.5 Mg0.6-1.0 Si0.7-1.3 Mn0.10-0.40		AA6081	AlMgSi1 3.2315	6082		Hardenable alloy with good corrosion resistance, easy to work, perfectly suitable for polishing, high mechanical strength, suitable for decorative anodising.	Pointers for measuring instruments.
Material	AISI	Nominal Chemical Composition	British	American UNS	German	French	Other	Typical Properties	Typical Applications
Austenitic stainless steels	AISI 304	Fe72 Ni8.5-10 Cr17-20 C<=0.07		AISI304 UNS S30400	XR CrNi18.1 1.4301	Z6 CN18.9		Regular grades of austenitic stainless steel, easy to coldwork and good corrosion resistance, creep resistant up to 700ºC	Medical instruments, bellows, endoscopes.
	AISI 304L	Fe71 Ni8-12 Cr18-20 C<=0.03		AISI304L UNS S30403	X2 CrNi19.11 1.4306	Z2CN18.10		Compared with the above grade, this low-carbon grade offers improved corrosion resistance.
	AISI 316L	FE68 Ni11-14 Cr16.5-18.5 Mo2.5-3 C<=0.03		AISI316L UNS S31603	X2CrNiMo17.13.2 X2CrNiMo18-14-3 1.4404 1.4435	Z2CND17.12		Low grade carbon, excellent resistance to acid stress corrosion	Bourdon springs, bellows, electromechanical parts, thermometer bulbs, Food and Chemical industries, heat exchangers, wristbands for watches.
	AISI 316L VM	Fe65C>=0.030 Ni13-15 Cr17-19 Mo2.5-3.2 S>=0.010 P>=0.025		AISI 316L VM	X2 CrNiMo18.15.3 1.4441			Vacuum melted austenitic stainless steel. No free ferrite phase and good micocleanliness.	Medical instruments, surgical implants, watch industries, automotive industries.
	AISI 316Ti	Fe68 C<=0.10 Ni10.5-13.5 Cr16.5-18.5 Mo2-2.5Ti5xC		AISI 316Ti UNS S31635	X2CrNiMoTi 17-12-2 1.4571	X6 CNDT17.12		Titanium -stabilised grade for improved stress corrosion resistance and reduced creep at high temperatures.	Bourdon springs, bellows.
	AISI 321	Fe71 Ni9-11.5 Cr17-19 Ti5xC C<=0.10		AISI 321 UNS S32100	X6 CrNiTi18.10 1.4541	Z6 CNT18.10		Titanium -stabilised grade for improved stress corrosion resistance and reduced creep at high temperatures.	Bourdon springs, bellows, special cooling circuits.
	AISI 347	Fe71 Ni9-12 Cr17-19 Nb10C-1 C0.06		AISI 347 UNS S34700	X6 CrNiNb18.10 1.4550	Z6 CN Nb18.10		Niobium- stabilised grade for better high temperature properties, mechanical strength, oxidation resistance.	Bourdon springs, bellow, aerospace heat exchangers.
Super austenitic stainless steel	AISI 904L	Fe51 Ni24-26 Cr19-21 Mo4.5 Cu1-2 N0.4-0.15 C<=0.02		AISI 904L UNS N08904	XI NiCrMoCuN25-20-5 1.4539	Z2 NCDU25.20		Very good resistance to sea water corrosion and to sulfuric and phosphoric acids	Tubes and profiles for chemical and watch industries.
Ferritic stainless steel	AISI 446	Fe72 Cr26 C0.18 N0.25		AISI 446 UNS S 44600	X10CrAI24 X18CrN24 1.4762 1.4749	Z12 CAS25		Good resistance to oxidation at high temperature.	Instrumentation used at high temperature or in specific corrosion media.
Iron-nickel-chromium alloy	Ni-Span C-902	Fe49 Ni41-43.5 Cr4.9-5.75 Ti2.20-2.75 Al0.3-0.8		Ni-Span C-902	Ni-Span C-902	DURINVAL C		Structure-hardenable alloy with constant elasticity modulus from -45ºC to +65ºC. Good fatigue strength and low mechanical hysteresis.	Bourdon springs with constant modulus of elasticity. Transducers.
Nickel	Nickel 200	Ni99.5 C0.08		Nickel 200 UNS N02200	Ni99.2 2.4066	Ni-01		Good stress corrosion resistance, alkalis, chlorides, fluorides.	Food and chemical industry. Heat exchangers.
Nickel Alloy	Monel 400	Ni66.0 Cu31.5 Fe1.35		Monel 400 N04400	NiCu30Fe 2.436	NU30		Excellent resistance to a variety of stress corrosion types.	Bellows, hoses, rivets, medical instruments.
	Monel K500	Ni65 Cu29.5 Fe1.0 Al 2.8 Ti0.50		Monel K500 N05500	NiCu30AI 2.4375	NU30UT		Structure- hardenable alloy with excellent corrosion resistance and high mechanical stability to low temperatures. (-250ºC).	Bourdon tubes.
	Inconel 600	Ni72 Cr15.5 Fe8		Inconel 600 N06600	NiCu15Fe 2.4816	Z8 NC 75 15		Good corrosion and oxidation resistance up to 1175ºC.	Cooling circuits for space industry.

Stainless Steel Tube

GRADES	Type 304S, 304LS, 316S, 316LS, 321S, 347S, Alloy 600S, 304 Welded Stainless Tube
SPECIFICATIONS	ASME/ASTM A-249, A-269, A-270, A-307, A-268, SA/A-213, A-632, SB/B-163, B-167 MILITARY AND AEROSPACE SPECIFICATIONS TUBES
LENGTHS	MILL OFFERS LENGTHS UP TO 140ft depending upon specifications. Standard cutting tolerance is + 1/8" - 0" Coils available up to 140ft.
PRECISION CUT-OFF	Tolerance capabilities to ± 0.005"
TESTING	Eddy Current, Hydrostatic, Ultrasonic, Dye Penetrant, Corrosion Helium Leak
DIMENSIONAL	From Standard specification to a total of 0.002" on O.D. and I.D.
SURFACE FINISH	I.D.: 12 RA or better O.D.: 32 RA or better

Aircraft Stainless Steel Tubing Specifications

Material	Specification Number		Temper
Material	U.S. Govt.	SAE	Temper
304 Seamless or Welded	MIL-T-5695 1/4H		1/4 Hard
304 Seamless or Welded	MIL-T-5695 1/2H		1/2 Hard
304 Seamless or Welded	MIL-T-6845	AMS-5566	1/8 Hard
304 Seamless	MIL-T-8504	AMS-5560	Annealed
304 Welded	MIL-T-8504	AMS-5565	Annealed
304 Seamless	MIL-T-8506		Annealed
304 Welded	MIL-T-8506		Annealed
304L Seamless	MIL-T-8606		Annealed
304L Welded	MIL-T-8606		Annealed
304 Seamless		AMS-5639	Annealed
304 ELC Seamless		AMS-5647	Annealed
316 Seamless		AMS-5573	Annealed
316 Seamless		AMS-5648	Annealed
321 Seamless or Welded		AMS-5557	Annealed
321 Seamless	MIL-T-8606	AMS-5570	Annealed
321 Welded	MIL-T-8606	AMS-5576	Annealed
321 Seamless	MIL-T-8808		Annealed
321 Welded	MIL-T-8808		Annealed
321 Seamless		AMS-6545	Annealed
347 Seamless or Welded		AMS-5556	Annealed
347 Seamless	MIL-T-8606	AMS-5571	Annealed
347 Welded	MIL-T-8606	AMS-5575	Annealed
347 Seamless	MIL-T-8808		Annealed
347 Welded	MIL-T-8808		Annealed
347 Seamless		AMS-5646	Annealed
600 Nickel Alloy		AMS-5580	Annealed