Invar/Kovar Pipe from China manufacturer

Invar 36 precision alloy is a 36% nickel-iron alloy notable for its uniquely low coefficient of thermal expansion which is roughly one-tenth that of carbon steel in the range from room temperature to around 200℃. It also retains good strength and toughness at cryogenic temperatures. It can be hot and cold formed and machined using processes similar to austenitic stainless steels.

Applications:

Invar 36 is useful for applications where high dimensional stability is required such as standards of length, precision optical and laser system, cryogenic components. It is also used in conjunction with high expansion alloys in applications in bimetallic thermostats.

It is a registered trademark of Carpenter Technology Corporation. Invar is a trademark of Imphy Alloys.

Invar 36

K93600

W.Nr.1.3912
Ni36

X1NiCrMoCu

Fe-Ni36

Chemical composition

%	Fe	Ni	C	Mn	Si	P	S	Co	Cr
Min	Balance	35
Max	Balance	37	0.15	0.60	0.40	0.025	0.025	0.50	0.25

Physical properties

Density	8.11 g/cm3
Melting point	1430℃

Seamless Stainless Steel Pipe

Standards: ASTM A312
Sizes: 1/4″ Thru 20”

Schedules: 10s, 40s, 80s, 160, and XXH

True 40, True 80

Welded stainless steel pipe
Standards: ASTM A312
Sizes: 1/4″ Thru 36″
Schedules: 10s, 20, 40s, 80s

Equipment:

NB	Size	OD mm	40S mm	5S mm	10S mm	S 10 mm	S 20 mm	S 40 mm	S 60 mm	XS/80S mm	S 80 mm	S 100 mm	S 120 mm	S 140 mm	S 160 mm	XXS mm
	1/8”	10.29			1.24			1.73			2.41
	1/4”	13.72			1.65			2.24			3.02
	3/8”	17.15			1.65			2.31			3.20
15	1/2”	21.34	2.77	1.65	2.11			2.77		3.73	3.73				4.78	7.47
20	3/4”	26.67	2.87	1.65	2.11			2.87		3.91	3.91				5.56	7.82
25	1”	33.40	3.38	1.65	2.77			3.38		4.55	4.55				6.35	9.09
32	1 1/4”	42.16	3.56	1.65	2.77			3.56		4.85	4.85				6.35	9.70
40	1 1/2”	48.26	3.68	1.65	2.77			3.68		5.08	5.08				7.14	10.15
50	2”	60.33	3.91	1.65	2.77			3.91		5.54	5.54				9.74	11.07
65	2 1/2”	73.03	5.16	2.11	3.05			5.16		7.01	7.01				9.53	14.02
80	3”	88.90	5.49	2.11	3.05			5.49		7.62	7.62				11.13	15.24
90	3 1/2”	101.60	5.74	2.11	3.05			5.74		8.08	8.08
100	4”	114.30	6.02	2.11	3.05			6.02		8.56	8.56		11.12		13.49	17.12
125	5”	141.30	6.55	2.77	3.40			6.55		9.53	9.53		12.70		15.88	19.05
150	6”	168.27	7.11	2.77	3.40			7.11		10.97	10.97		14.27		18.26	21.95
200	8”	219.08	8.18	2.77	3.76		6.35	8.18	10.31	12.70	12.70	15.09	19.26	20.62	23.01	22.23
250	10”	273.05	9.27	3.40	4.19		6.35	9.27	12.70	12.70	15.09	19.26	21.44	25.40	28.58	25.40
300	12”	323.85	9.53	3.96	4.57		6.35	10.31	14.27	12.70	17.48	21.44	25.40	28.58	33.32	25.40
350	14”	355.60	9.53	3.96	4.78	6.35	7.92	11.13	15.09	12.70	19.05	23.83	27.79	31.75	35.71
400	16”	406.40	9.53	4.19	4.78	6.35	7.92	12.70	16.66	12.70	21.44	26.19	30.96	36.53	40.49
450	18”	457.20	9.53	4.19	4.78	6.35	7.92	14.27	19.05	12.70	23.83	29.36	34.93	39.67	45.24
500	20”	508.00	9.53	4.78	5.54	6.35	9.53	15.09	20.62	12.70	26.19	32.54	38.10	44.45	50.01
550	22”	558.80	9.53	4.78	5.54	6.35	9.53		22.23	12.70	28.58	34.93	41.28	47.63	53.98
600	24”	609.60	9.53	5.54	6.35	6.35	9.53	17.48	24.61	12.70	30.96	38.89	46.02	52.37	59.54
650	26”	660.40	9.53			7.92	12.70			12.70
700	28”	711.20	9.53			7.92	12.70			12.70
750	30”	762.00	9.53	6.35	7.92	7.92	12.70			12.70
800	32”	812.80	9.53			7.92	12.70	17.48		12.70
850	34”	863.60	9.53			7.92	12.70	17.48		12.70
900	36”	914.40	9.53			7.92	12.70	19.05		12.70

Chemical Composition

Grades	C max	Mn max	P max	S max	Si max	Cr	Ni	Mo
304	0.08	2.00	0.04	0.03	0.075	18.00-20.00	8.00-11.00	/
304L	0.035	2.00	0.04	0.03	0.075	18.00-20.00	8.00-13.00	/
316	0.08	2.00	0.04	0.03	0.075	16.00-18.00	11.00-14.00	2.00-3.00
316L	0.035	2.00	0.04	0.03	0.075	16.00-18.00	10.00-15.00	2.00-3.00

Mechanical Properties

Grades	Itemper	Tensile Psi	Yield Psi	Elong %	Rockwell Hardness
304	Annealed	85000-105000	35000-75000	20-55	80-95
304L	Annealed I1/8 Hard	80000-105000	30000-75000	20-55	75-95
316	Annealed	85000 min	35000 min	50 min	80 min
	Annealed	80000 min	30000 min	50 min	75 min

Annealed, Pickling, Polished

Product Category

Invar/Kovar Pipe

JIANGSU BEALLOY CO.,LTD.

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