ANSI B16.5 316L Blind Flange RTJ DN300 900# R57

Type: 316L RTJ Blind Flange
Pressure: 900# (Class 900)
Size: 12 Inch (DN300)
Material: 316L
Flange Facing Type:RTJ
Dim. Tolerance: +/- 0.03 in.
Standards: ANSI B16.5
China Blind Flanges Manufacturer www.pipelinedubai.com offers ANSI B16.5 316L Blind Flange RTJ DN300 900# R57.

Chemical Composition and Mechanical Property For 316L
Steel Grade	Chemical Composition									Mechanical Performance
	C(Max)	Si(Max)	Mn(Max)	P(Max)	S(Max)	Ni	Cr	Mo	N	Tensile Strength (Min）	Yield Strength (Min)
										Mpa	Mpa
316L	0.03	0.75	2.00	0.045	0.03	10.0–14.0	16.0–18.0	2.00–3.00	0.1	485	170

Dimensions of ANSI/ASME B16.5 Class 900 Blind Flanges

Pipe Normal Diam.		O.D. Flange	Thk. Of Flange Min	Diam. of Bolt Circle	Diam. of Bolt Holes	Number of Bolts	Diam. of Bolts (inch)	Approx. Weight
inch	dn	O	C	BC	BH	BN	BD	KG/PCS	LB/PCS
1/2″	15	120.7	22.4	82.6	22.4	4	3/4″	1.9	4.2
3/4″	20	130	25.4	88.9	22.4	4	3/4″	2.7	6
1″	25	149.4	28.4	101.6	25.4	4	7/8″	3.7	8.1
1-1/4″	32	158.8	28.4	111.3	25.4	4	7/8″	4.3	9.5
1-1/2″	40	177.8	31.8	124	28.4	4	1″	5.9	13
2″	50	215.9	38.1	165.1	25.4	8	7/8″	11.3	24.9
2-1/2″	65	244.3	41.1	190.5	28.4	8	1″	16	35.2
3″	80	241.3	38.1	190.5	25.4	8	7/8″	16.8	37
4″	100	292.1	44.5	235	31.8	8	1 1/8″	24.5	54
5″	125	349.3	50.8	279.4	35.1	8	1 1/4″	39.5	87
6″	150	381	55.6	317.5	31.8	12	1 1/8″	51.5	113.5
8″	200	469.9	63.5	393.7	38.1	12	1 3/8″	89	196
10″	250	546.1	69.9	469.9	38.1	16	1 3/8″	131	289
12″	300	609.6	79.2	533.4	38.1	20	1 3/8″	187	412
14″	350	641.4	85.9	558.8	41.1	20	1 1/2″	224	494
16″	400	704.9	88.9	616	44.5	20	1 5/8″	259	593
18″	450	787.4	101.6	685.8	50.8	20	1 7/8″	383	844
20″	500	857.3	108	749.3	53.8	20	2″	482	1063
24″	600	1041	139.7	901.7	66.5	20	2 1/2″	905	1995

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ANSI B16.5 316L Blind Flange RTJ DN300 900# R57

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