SUS F304 15A Blind Flange (BL) Stainless Steel 5K JIS B2220

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63K

Material：:

304

304L

316

316L

Custom

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JIS B2220 Blind Flange (BL)

Standard: JIS B2220
Material Standard: JIS G3214
Manufacturing Facility Standard: ISO 9001:2015 , GB/T19001-2016
Certification: Material Test Reports (MTRS) and Certificates of Conformity (COC) are available upon request.

stainless blind flange

Dimensions & Sizes(5K)

A	D	do (SOP,SOH,SW)	d(SW,WN）	t(ExceptforBL)	t (BL)	T(SOH,SW)	T (WN)	a(SOH,SW)	a (WN)	b(SOH,SW)	b (WN)	S (SW)	f	g	C	n	h
10	75	17.8	12.7	9	9	13	24	23	17.3	26	26	10	1	39	55	4	12
15	80	22.2	16.1	9	9	13	25	27	21.7	30	31	10	1	44	60	4	12
20	85	27.7	21.6	10	10	15	28	33	27.2	36	38	13	1	49	65	4	12
25	95	34.5	27.6	10	10	17	30	41	34.0	44	46	13	1	59	75	4	12
32	115	43.2	35.7	12	12	19	33	50	42.7	53	55	13	2	70	90	4	15
40	120	49.1	41.6	12	12	20	34	56	48.6	60	62	13	2	75	95	4	15
50	130	61.1	52.9	14	14	24	36	69	60.5	73	73	16	2	85	105	4	15
65	155	77.1	67.9	14	14	27	39	86	76.3	91	91	16	2	110	130	4	15
80	180	90.0	80.7	14	14	30	41	99	89.1	105	105	16	2	121	145	4	19
90	190	102.6	93.2	14	14		41		101.6		117	-	2	131	155	4	19
100	200	115.4	105.3	16	16	36	41	127	114.3	130	128	-	2	141	165	8	19
125	235	141.2	130.8	16	16	40	43	154	139.8	161	156	-	2	176	200	8	19
150	265	166.6	155.2	18	18	40	49	182	165.2	189	184	-	2	206	230	8	19
175	300	192.1	180.1	18	18	-	49	-	190.7	-	209	二	2	232	260	8	23
200	320	218.0	204.7	20	20		53		216.3		235		2	252	280	8	23
225	345	243.7	229.4	20	20		54		241.8		261		2	277	305	12	23
250	385	269.5	254.2	22	22		61		267.4		290		2	317	345	12	23
300	430	321.0	304.7	22	22	-	62	-	318.5		342		3	360	390	12	23
350	480	358.1	339.8	24	24		73		355.6		385	二	3	403	435	12	25
400	540	409.0	390.6	24	24		76		406.4		438	-	3	463	495	16	25
450	605	460.0	441.4	24	24	40	79	495	457.2	500	491		3	523	555	16	25
500	655	511.0	4922	24	24	40	79	546	508.0	552	541	-	3	573	605	20	25
550	720	562.0	543.0	26	26	42	81	597	558.8	603	593	-	3	630	665	20	27
600	770	613.0	593.8	26	26	44	81	648	609.6	654	643	一	3	680	715	20	27
650	825	664.0	644.6	26	28	48	85	702	660.4	708	698	-	3	735	770	24	27
700	875	715.0	695.4	26	30	48	94	751	711.2	758	748	一	3	785	820	24	27
750	945	766.0	746.2	28	32	52	100	802	762.0	810	802	一	3	840	880	24	33
800	995	817.0	797.0	28	34	52	100	854	812.8	862	852		3	890	930	24	33
850	1045	868.0	847.8	28	36	54	108	904	863.6	912	902		3	940	980	24	33
900	1095	919.0	898.6	30	36	56	108	956	914.4	964	952	-	3	990	1030	24	33
1000	1195	1021.0	1000.2	32	40	60	116	1058	1016.0	1066	1052	一	3	1090	1130	28	33
1100	1305	1122.0	1098.6	32	44	71	136	1158	1117.6	1170	1162	-	3	1200	1240	28	33
1200	1420	1224.0	1200.2	34	48	77	155	1260	1219.2	1272	1272	-	3	1305	1350	32	33
1350	1575	1376.0	1346.2	34	54	80	164	1414	1371.6	1426	1472	二	3	1460	1505	32	33
1500	1730	1529.0	1498.6	36	58	86	172	1568	1524.0	1580	1582	二	3	1615	1660	36	33

Dimensions & Sizes(10K)

A	D	do(SOP,SOH,SW)	d(SW,WN）	t(ExceptforBL)	t(BL)	T(SOH,SW)	T (WN)	a(SOH,SW)	a (WN)	b(SOH,SW)	b (WN)	S (SW)	f	g	C	n	h
10	90	17.8	12.7	12	12	16	29	23	17.3	26	28	10	1	46	65	4	15
15	95	22.2	16.1	12	12	16	31	27	21.7	30	33	10	1	51	70	4	15
20	100	27.7	21.6	14	14	20	32	33	27.2	36	38	13	1	56	75	4	15
25	125	34.5	27.6	14	14	20	36	41	34.0	44	47	13	L	67	90	4	19
32	135	43.2	35.7	16	16	22	38	50	42.7	53	56	13	2	76	100	4	19
40	140	49.1	41.6	16	16	24	38	56	48.6	60	62	13	2	81	105	4	19
50	155	61.1	52.9	16	16	24	40	69	60.5	73	75	16	2	96	120	4	19
65	175	77.1	67.9	18	18	27	44	86	76.3	91	92	16	2	116	140	4	19
80	185	90.0	80.7	18	18	30	45	99	89.1	105	105	16	2	126	150	8	19
90	195	102.6	93.2	18	18		45	-	101.6	-	117	-	2	136	160	8	19
100	210	115.4	105.3	18	18	36	45	127	114.3	130	130	-	2	151	175	8	19
125	250	141.2	130.8	20	20	40	47	154	139.8	161	156	-	2	182	210	8	23
150	280	166.6	155.2	22	22	40	53	182	165.2	189	184		2	212	240	8	23
175	305	192.1	180.1	22	22		55		190.7		210		2	237	265	12	23
200	330	218.0	204.7	22	22		58	-	216.3	-	238	-	2	262	290	12	23
225	350	243.7	229.4	22	22	-	58		241.8		261		2	282	310	12	23
250	400	269.5	254.2	24	24	36	65	288	267.4	292	292	一	2	324	355	12	25
300	445	321.0	304.7	24	24	38	68	340	318.5	346	345		3	368	400	16	25
350	490	358.1	339.8	26	26	42	79	380	355.6	386	388	-	3	413	445	16	25
400	560	409.0	390.6	28	28	44	85	436	406.4	442	442		3	475	510	16	27
450	620	460.0	441.4	30	30	48	90	496	457.2	502	495	-	3	530	565	20	27
500	675	511.0	492.2	30	30	48	99	548	508.0	554	546		3	585	620	20	27
550	745	562.0	543.0	32	34	52	111	604	558.8	610	597	-	3	640	680	20	33
600	795	613.0	593.8	32	36	52	112	656	609.6	662	648	一	3	690	730	24	33
650	845	664.0	644.6	34	38	56	116	706	660.4	712	700	一	3	740	780	24	33
700	905	715.0	695.4	34	40	58	132	762	711.2	770	754		3	800	840	24	33
750	970	766.0	746.2	36	44	62	139	816	762.0	824	807	-	3	855	900	24	33
800	1020	817.0	797.0	36	46	64	139	868	812.8	876	858	一	3	905	950	28	33
850	1070	868.0	847.8	36	48	66	139	920	863.6	928	908	-	3	955	1000	28	33
900	1120	919.0	898.6	38	50	70	140	971	914.4	979	959		3	1005	1050	28	33
1000	1235	1021.0	1000.2	40	56	74	151	1073	1016.0	1081	1065	-	3	1110	1160	28	39
1100	1345	1122.0	1098.6	42	62	95	170	1175	1117.6	1185	1174		3	1220	1270	28	39
1200	1465	1224.0	1200.2	44	66	101	182	1278	1219.2	1290	1281	-	3	1325	1380	32	39
1350	1630	1376.0	1346.2	48	74	110	200	1432	1371.6	1450	1438		3	1480	1540	36	45
1500	1795	1529.0	1498.6	50	82	123	218	1585	1524.0	1605	1598	一	3	1635	1700	40	45

Dimensions & Sizes(16K)

A	D	do(SOP,SOH,SW)	d(SW,WN）	t(SOH,SW,WN)	T (TR)	T (WN)	a(SOH,SW)	a(WN,IT)	b(SOH,SW)	b(WN,IT)	S (SW)	f	g	C	n	h
10	90	17.8	12.7	12	16	31	26	17.3	28	29	10	1	46	65	4	15
15	95	22.2	16.1	12	16	32	30	21.7	32	34	10	1	51	70	4	15
20	100	27.7	21.4	14	20	34	38	27.2	42	39	13	1	56	75	4	15
25	125	34.5	27.2	14	20	36	46	34.0	50	47	13	1	67	90	4	19
32	135	43.2	35.5	16	22	39	56	427	60	56	13	2	76	100	4	19
40	140	49.1	41.2	16	24	39	62	48.6	66	62	13	2	81	105	4	19
50	155	61.1	52.7	16	24	40	76	60.5	80	75	16	2	96	120	8	19
65	175	77.1	65.9	18	27	46	94	76.3	98	92	16	2	116	140	8	19
80	200	90.0	78.1	20	30	49	108	89.1	112	105	16	2	132	160	8	23
90	210	102.6	90.2	20	-	50	120	101.6	124	118	-	2	145	170	8	23
100	225	115.4	102.3	22	36	56	134	114.3	138	134		2	160	185	8	23
125	270	141.2	126.6	22	40	60	164	139.8	170	162		2	195	225	8	25
150	305	166.6	151.0	24	40	69	196	165.2	202	192	-	2	230	260	12	25
200	350	218.0	199.9	26		73	244	216.3	252	244		2	275	305	12	25
250	430	269.5	248.8	28		81	304	267.4	312	298		2	345	380	12	27
300	480	321.0	297.9	30		88	354	318.5	364	352		3	395	430	16	27
350	540	358.1	333.4	34		104	398	355.6	408	398		3	440	480	16	33
400	605	409.0	381.0	38		115	446	406.4	456	452		3	495	540	16	33
450	675	460.0	431.8	40	-	126	504	457.2	514	510		3	560	605	20	33
500	730	511.0	482.6	42		128	558	508.0	568	561	-	3	615	660	20	33
550	795	562.0	533.4	44		135	612	558.8	622	616		3	670	720	20	39
600	845	613.0	584.2	46		141	666	609.6	676	670		3	720	770	24	39

stainless blind flange

Dimensions & Sizes(20K)

A	D	do (SOP,SOH,SW)	d (SW,WN）	t(SOH,SW,WN)	T (TR)	T (WN)	a (SOH,SW)	a (WN,IT)	b (SOH,SW)	b (WN,IT)	S (SW)	f	g	C	n	h
10	90	17.8	12.7	14	20	33	30	17.3	32	29	10	1	46	65	4	15
15	95	22.2	16.1	14	20	34	34	21.7	36	34	10	1	51	70	4	15
20	100	27.7	21.4	16	22	36	40	27.2	42	39	13	1	56	75	4	15
25	125	34.5	27.2	16	24	38	48	34.0	50	47	13	1	67	90	4	19
32	135	43.2	35.5	18	26	41	56	42.7	60	56	13	2	76	100	4	19
40	140	49.1	41.2	18	26	41	62	48.6	66	62	13	2	81	105	4	19
50	155	61.1	52.7	18	26	42	76	60.5	80	75	16	2	96	120	8	19
65	175	77.1	65.9	20	30	48	100	76.3	104	92	16	2	116	140	8	19
80	200	90.0	78.1	22	34	51	113	89.1	117	105	16	2	132	160	8	23
90	210	102.6	90.2	24	36	54	126	101.6	130	118	-	2	145	170	8	23
100	225	115.4	102.3	24	36	58	138	114.3	142	134	-	2	160	185	8	23
125	270	141.2	126.6	26	40	64	166	139.8	172	162		2	195	225	8	25
150	305	166.6	151.0	28	42	73	196	165.2	202	192		2	230	260	12	25
200	350	218.0	199.9	30	46	77	244	216.3	252	244	-	2	275	305	12	25
250	430	269.5	248.8	34	52	87	304	267.4	312	298	-	2	345	380	12	27
300	480	321.0	297.9	36	56	94	354	318.5	364	352		3	395	430	16	27
350	540	358.1	333.4	40	62	110	398	355.6	408	398	”	3	440	480	16	33
400	605	409.0	381.0	46	70	123	446	406.4	456	452		3	495	540	16	33
450	675	460.0	431.8	48	78	134	504	457.2	514	510	-	3	560	605	20	33
500	730	511.0	482.6	50	84	136	558	508.0	568	561	-	3	615	660	20	33
550	795	562.0	533.4	52	90	143	612	558.8	622	616		3	670	720	20	39
600	845	613.0	584.2	54	96	149	666	609.6	676	670	-	3	720	770	24	39

Dimensions & Sizes(30K)

A	D	do(SOH)	d(WN）	t (SOH,SW,WN)	T(SOH)	T(WN)	a(SOH)	a(WN)	b(SOH)	b(WN)	f	g	C	n	h
10	110	17.8	12.7	16	24		30		34		1	52	75	4	19
15	115	22.2	16.1	18	26	45	36	21.7	40	40	1	55	80	4	19
20	120	27.7	21.4	18	28	45	42	27.2	46	44	1	60	85	4	19
25	130	34.5	27.2	20	30	48	50	34.0	54	52	1	70	95	4	19
32	140	43.2	35.5	22	32	52	60	42.7	64	62	2	80	105	4	19
40	160	49.1	41.2	22	34	54	66	48.6	70	70	2	90	120	4	23
50	165	61.1	52.7	22	36	57	82	60.5	86	84	2	105	130	8	19
65	200	77.1	65.9	26	40	69	102	76.3	106	104	2	130	160	8	23
80	210	90.0	78.1	28	44	73	115	89.1	121	118	2	140	170	8	23
90	230	102.6	90.2	30	46	74	128	101.6	134	130	2	150	185	8	25
100	240	115.4	102.3	32	48	76	141	114.3	147	142	2	160	195	8	25
125	275	141.2	126.6	36	54	86	166	139.8	172	172	2	195	230	8	25
150	325	166.6	151.0	38	58	95	196	165.2	204	202	2	235	275	12	27
200	370	218.0	199.9	42	64	102	248	216.3	256	254	2	280	320	12	27
250	450	269.5	248.8	48	72	118	306	267.4	314	312	2	345	390	12	33
300	515	321.0	297.9	52	78	127	360	318.5	370	366	3	405	450	16	33
350	560	358.1	333.4	54	84	134	402	355.6	412	406	3	450	495	16	33
400	630	409.0	381.0	60	92	149	456	406.4	468	462	3	510	560	16	39

Dimensions & Sizes(40K/63K)

A	D	d(WN）	t	T	a	b	f	g	C	n	h
40K
15	115	16.1	20	48	21.7	40	1	55	80	4	19
20	120	21.4	20	48	27.2	45	1	60	85	4	19
25	130	27.2	22	53	34.0	54	1	70	95	4	19
32	140	35.5	24	54	42.7	62	2	80	105	4	19
40	160	41.2	24	59	48.6	72	2	90	120	4	23
50	165	52.7	26	65	60.5	87	2	105	130	8	19
65	200	65.9	30	78	76.3	108	2	130	160	8	23
80	210	78.1	32	78	89.1	119	2	140	170	8	23
90	230	90.2	34	79	101.6	130	2	150	185	8	25
100	250	102.3	36	85	114.3	146	2	165	205	8	25
125	300	126.6	40	108	139.8	186	2	200	250	8	27
150	355	151	44	117	165.2	215	2	240	295	12	33
200	405	199.9	50	130	216.3	270	2	290	345	12	33
250	475	248.8	56	152	267.4	333	2	355	410	12	33
300	540	297.9	60	153	318.5	380	3	410	470	16	39
350	585	333.4	64	168	355.6	425	3	455	515	16	39
400	645	381	70	168	406.4	466	3	515	570	16	39
63K
15	120	14.3	23	57	21.7	42	1	55	85	4	19
20	135	19.4	25	57	27.2	46	1	60	95	4	23
25	140	25	27	61	34.0	55	1	70	100	4	23
32	150	32.9	30	61	42.7	60	2	80	110	4	23
40	175	38.4	32	73	48.6	75	2	90	130	4	25
50	185	49.5	34	82	60.5	92	2	105	145	8	23
65	220	62.3	38	101	76.3	118	2	130	175	8	25
80	230	73.9	40	103	89.1	130	2	140	185	8	25
90	255	85.4	42	103	101.6	140	2	150	205	8	27
100	270	97.1	44	107	114.3	154	2	165	220	8	27
125	325	120.8	50	127	139.8	190	2	200	265	8	33
150	365	143.2	54	152	165.2	230	2	240	305	12	33
200	425	190.9	60	159	216.3	280	2	290	360	12	33
250	500	237.2	68	189	267.4	346	2	355	430	12	39
300	560	283.7	77	199	318.5	395	3	410	485	16	39
350	615	317.6	81	202	355.6	429	3	455	530	16	45
400	680	363.6	89	212	406.4	479	3	515	590	16	45

Materials

Classification of material	Rolled steels		Steel forgings		Steel castings		Material group No.
Classification of material	Standard number	Symbol of material	Standard number	Symbol of material	Standard number	Symbol of material	Material group No.
Carbon steel	JIS G 3101 JIS G4051	SS 400 S20Cb	JISG3201 JIS G 3202 JISG4051	SF 390A SFVC 1 S20Ch	JISG5101 JIS G5151	SC410 SCPH1	001
	JIS G4051	S25Cì	JISG3201 JISG4051	SF 440A S25Cb	JISG5101	SC 480	002
	一	一	JISG3202	SFVC 2A	JISG5151	SCPH2	003a
Low alloy steel	一	一	JIS G 3203	SFVAF1	JIS G5151	SCPH 11	013a
Low alloy steel	一	一	JIS G 3203	SFVAF11A	JIS G5151	SCPH 21	015a
Stainless steel	JIS G4304 JIS G4305	SUS 304 SUS 304	JIS G3214	SUS F304	JIS G5121	SCS 13A	021a
	—	—	—	—	JIS G5121	SCS 19A	021b
	JIS G4304 JIS G 4305	SUS 316 SUS 316	JIS G 3214	SUS F316	JISG5121	SCS 14A	022a
	一	—	—	一	JISG5121	SCS 16A	022b
	JIS G4304 JIS G4305	SUS 304L SUS 304L	JIS G 3214	SUS F304L	—	一	023a
	JIS G4304 JIS G4305	SUS 316L SUS 316L	JISG3214	SUS F316L	一	一	023b
Notes : a)SS 400 of JIS G3101 and SF 390A and SF 440A of JIS G 3201shall be those with a maximum carbon content of 0.35%. b) The inspection ofS 20C and S 25Cof JIS G4051shall be conducted according to JIS G 0404,and the tensile strength ofS 20Cshall be 400 N/mm²or over and that of S25C, 440N/mm²or over.

ASTM materials known to be equivalent or superior to the materials

Classification of material	Rolled steels		Steel forgings		Steel castings		Material group No.
Classification of material	Standard number	Symbol of material	Standard number	Symbol of material	Standard number	Symbol of material	Material group No.
Carbon steel	A515 A516 A537	70 70 CL1	A105 A350	— LF2	A216	WCB	1.1
Low alloy steel	A204 A204	A B	A182	F1	A217 A352	WC1 LC1	1.5
Low alloy steel	A387	11 CL2	A182 A182	F11 CL2 F12 CL2	A217	WC6	1.9
Stainless steel	A240 A240	304 304H	A182 A182	F304 F304H	A351 A351	CF3 CF8	2.1
	A240 A240 A240	316 316H 317	A182 A182	F316 F316H	A351 A351 A351	CF3M CF8M CG8M	2.2
	A240 A240	304L 316L	A182 A182	F304L F316L	—	—	2.3
NOTE:For standards shown in this table,see Annex G.

Combination of flanges and gasket faces

Nominal pressure	Type	FF	RF	MF	TG
5K	SOP,SOH,SW,TR,BL	O	一	一	一
5K	WN,IT	O	O	一	一
10K	SOP,SOH,SW,TR,BL	O	一	O	O
10K	WN,IT	O	O	O	O
10K light type	SOP,SOH	O	一	一	一
16K	SOH,SW,TR,BL	O	一	O	O
16K	WN,IT	O	O	O	O
20K	SOH,SW,TR,WN,IT,BL	一	O	O	O
30K	SOH,WN,IT,BL	一	O	O	O
40K	WN,BL	一	O	O	O
63K	WN,BL	一	O	O	O
NOTE:Flange type LJ has no gasket face.

Manufactured from SUS F304 stainless steel according to JIS B2220 standards, this durable blind pipe flange ensures excellent pressure containment with 5K rating. The corrosion-resistant stainless blind flange guarantees long-term performance in demanding environments. Ideal for chemical processing and water treatment applications, this essential blind pipe flange facilitates system maintenance and future expansion. The precision-machined surface of this stainless blind flange ensures secure sealing when properly installed. This reliable component delivers excellent service where pressure isolation and system safety are essential requirements in piping infrastructure.

About HAINER STEEL: Your Trusted Partner in Industrial Piping Solutions

HAINER STEEL is a leading manufacturer and global supplier of high-quality industrial piping components. Since our establishment, we have been dedicated to providing a comprehensive range of products including valves, flanges, pipe fittings, fasteners, and steel pipes for a wide spectrum of industries such as oil & gas, power generation, chemical processing, and construction.

Our commitment to excellence is reflected in our stringent quality control processes. All our products are manufactured to meet international standards such as ASME, ASTM, ANSI, DIN, and API, ensuring superior performance, reliability, and safety in the most demanding environments.

We pride ourselves on not just supplying products, but on building long-term partnerships by offering:

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Explore our full product catalog or contact our team today to discuss your project requirements and request a free quote.

stainless blind flange

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