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BLRF Stainless Steel Pipe Flanges

SUS304 10K BL-RF JIS Standard Stainless Steel Blind Raised Face Flange

Product Information

Product Name	SUS304 10K BL-RF JIS Standard Stainless Steel Blind Raised Face Flange
Size Range	3/8” to 60”
Pressure Class	10K (10kg/cm²)
Standards	JISB2220
Face Type	BLRF Blind Raised Face
Materials	SUS304
Origin	China
Application	Pumps, Valves, and vessels in manufacturing and food processing. Pipe connections in industrial waterworks. Heat exchangers and heating systems of all sizes. Mining support. Nuclear power systems

Material:Stainless Steel SUS304

SUS304 material is a Japanese JIS standard and the most commonly used stainless steel, containing 18% Cr and 8% Ni. It can maintain good strength and heat resistance in high temperature and low temperature environments, and also has good corrosion resistance, weldability, cold workability and mechanical properties in the mild atmosphere.

SUS304 Stainless Steel Chemical Composition

Standard	Grade	C≤	Si≤	Mn≤	P≤	S≤	Cr	Ni
JIS G4303	SUS304	0.08	1.00	2.00	0.045	0.030	18-20	8-10.5

SUS304 Stainless Steel Mechanical Properties

Standard

Grade

Dia.(d)

(mm)

Yield Strength

(N/mm²)

Tensile Strength

(N/mm²)

Elongation

(%)

Hardness

(HB)

Hardness

(HV)

JIS G4303

SUS304

d≤180

≥205

≥520

≤187

≤200

Face Type:BLRF - Blind Raised Face

A blind flange is a circular plate with a bolt hole and a solid surface that is used to seal off a pipeline or to create the end flow. They are widely utilized in the petrochemical, public services, pipe engineering, and water works industries. The blind flange is placed between two open flanges to prevent liquid flow via a pipeline.

Blind flange is typically essential when undertaking pipeline maintenance or repairs as the flow in the pipeline must be stopped for maintenance, yet the nearest valve may be kilometers away from the repair site. As a result, installing a blind flange on a pipeline is far more cost-effective.

The Raised Face flange is the most common type used in process plant applications, and is easily to identify. It is referred to as a raised face because the gasket surfaces are raised above the bolting circle face. This face type allows the use of a wide combination of gasket designs, including flat ring sheet types and metallic composites such as spiral wound and double jacketed types. The purpose of a RF flange is to concentrate more pressure on a smaller gasket area and thereby increase the pressure containment capability of the joint.

JIS Flange 10K (10kg/cm²) Dimensions (mm)

Nominal Size	Thickness of flange		Dia. of hub Small dia. side		Dia. of Hub Large Dia. side		Taper of hub		Total length of flange		Chamfering ⁽²⁰⁾	Radius of fillet		Substitutional dimensions of WN⁽²¹⁾
Nominal Size	t	t	a	a	b	b⁽¹⁹⁾	x	x	T	T	c	r	r⁽²⁾	t		x
A	Except for BL	BL	SOH, SW, LJ,TR	WN	SOH,SW,LJ,TR	WN, IT	WN	IT	SOH, SW, LJ, TR	WN	LJ	SOH, SW, LJ, TR	WN, IT	WN
10	12	12	23	17.3	26	28	1.25	1.25	16	29	—	4	4	—	—
15	12	12	27	21.7	30	33	1.25	1.25	16	31	3	4	4	—	—
20	14	14	33	27.2	36	38	1.25	1.25	20	32	3	4	4	—	—
25	14	14	41	34.0	44	47	1.25	1.25	20	36	3	4	4	—	—
32	16	16	50	42.7	53	56	1.25	1.25	22	38	4	4	4	—	—
40	16	16	56	48.6	60	62	1.25	1.25	24	38	4	4	4	—	—
50	16	16	69	60.5	73	75	1.25	1.25	24	40	4	4	4	—	—
65	18	18	86	76.3	91	92	1.25	1.25	27	44	5	4	4	—	—
80	18	18	99	89.1	105	105	1.25	1.25	30	45	5	4	5	—	—
90	18	18	—	101.6	—	117	1.25	1.25	—	45	5	—	5	—	—
100	18	18	127	114.3	130	130	1.25	1.25	36	45	5	4	5	—	—
125	20	20	154	139.8	161	156	1.25	1.25	40	47	6	4	5	—	—
150	22	22	182	165.2	189	184	1.25	1.25	40	53	6	4	5	—	—
175	22	22	—	190.7	—	210	1.25	1.25	—	55	—	—	5	—	—
200	22	22	—	216.3	—	238	1.25	1.25	—	58	6	—	5	—	—
225	22	22	—	241.8	—	261	1.25	1.25	—	58	—	—	5	—	—
250	24	24	288	267.4	292	292	1.25	1.25	36	65	6	6	6	—	—
300	24	24	340	318.5	346	345	1.25	1.25	38	68	9	6	6	—	—
350	26	26	380	355.6	386	388	1.25	1.25	42	79	9	6	6	—	—
400	28	28	436	406.4	442	442	1.25	1.25	44	85	9	6	6	—	—
450	30	30	496	457.2	502	495	1.25	1.25	48	90	9	6	6	—	—
500	30	30	548	508.0	554	546	1.5	1.5	48	99	9	6	6	40	1.25
550	32	34	604	558.8	610	597	1.75	1.75	52	111	9	6	6	42	1.5
600	32	36	656	609.6	662	648	1.75	1.75	52	112	9	6	6	42	1.5
650	34	38	706	660.4	712	700	1.75	1.75	56	116	—	6	6	44	1.5
700	34	40	762	711.2	770	754	2	2	58	132	—	6	6	56	1.5
750	36	44	816	762.0	824	807	2	2	62	139	—	6	6	60	1.5
800	36	46	868	812.8	876	858	2	2	64	139	—	6	6	60	1.5
850	36	48	920	863.6	928	908	2	2	66	139	—	6	6	60	1.5
900	38	50	971	914.4	979	959	2	2	70	140	—	6	6	62	1.5
1000	40	56	1073	1016.0	1081	1065	2	2	74	151	—	6	6	66	1.5
1100	42	62	1175	1117.6	1185	1174	2	2	95	170	—	8	10	72	1.5
1200	44	66	1278	1219.2	1290	1281	2	2	101	182	—	8	10	76	1.5
1350	48	74	1432	1371.6	1450	1438	2	2	110	200	—	8	10	82	1.5
1500	50	82	1585	1524.0	1605	1598	2	2	123	218	—	8	12	88	1.5

Note:

⁽¹⁹⁾ With IT flanges, this dimension is shown for reference.

⁽²⁰⁾ This may be rounded off with the dimensions c as a radius

⁽²¹⁾ This dimension may be determined on the agreement between the parties concerned

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Categories	Stainless Steel Pipe Flanges
Brand Name:	Kasugai
Model Number:	SUS304 JIS 10K BLRF
Place of Origin:	China
MOQ:	Negotiable
Price:	Negotiable
Payment Terms:	L / C , T / T
Supply Ability:	800ton per month
Delivery Time:	30 - 60 working days
Packaging Details:	Seaworthy Packng
Product Name:	SUS304 10K BL-RF JIS Standard Stainless Steel Blind Raised Face Flange
Size Range:	3/8" to 60"
Pressure Class:	10K
Standard:	JIS B2220
Face Type:	BL-RF Blind Raised Face
Materials:	JIS G4303 SUS304