304 Stainless Steel pipe

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304 Stainless Steel pipe

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Introduction
Specification

Product description:

Type 304 Stainless Steel is the most widely used of the austenitic (chromium/nickel) stainless steels. In the annealed condition it is essentially non-magnetic and becomes slightly magnetic with the application of cold work.

Type 304L Stainless Steel is preferred in welding applications to exclude the formation of chromium carbides during cooling in the heat affected region of the weld. These alloys represent an excellent combination of corrosion resistance and fabricability.

Processing:304 cannot be hardened by thermal treatment. Annealing: Heat to 1850o F to 2050 o F and cool at sufficiently high rates through 1500oF to 800oF to avoid precipitation of chromium carbides. Stress Relief Annealing: Cold worked parts should be stress relieved at 750oF for 1/2 to 2 hours.

Oxidation Resistance:The maximum temperature to 304 stainless steels can be exposed continuously without appreciable scaling is about 899℃.For intermittent exposure,the maximum exposure temperature is about 816℃.

Forming:Annealed Types 304 can be fabricated by roll forming, deep drawing, bending and most other fabrication techniques. Due to the high work hardening rate of these materials, intermediate anneals maybe required to successfully fabricate the part.

Machinability:Like most other austenitic steels,these grades machine with roung and stringy chips, therefore, chip curlers can be beneficial.

Welding:Types 304 is weldable by most fusion or resistance welding techniques. If filler metal is required, Type 308 is normally used.

Application:Decoration and Construction;Mechanical mechanism;Heat exchanger pipe;Mechanical processing board;Producing practical stainless steel products.

Type	304 stainless steel pipe/tube
Thinckness	1-30mm
Outer diameter	6-630mm
Length	6m or as customer's requirement
Finish	Polished, Pickled,hairline,mirror
Shap	Round,square, rectangular,oval
Technology	Seamless,weld
Standard	JIS, AISI, ASTM, GB, DIN, EN ,etc.
MOQ	2 Ton
Application	decoration, industry, etc.
Certificate	SGS
Packaging	Standard exporting packing

Specifications of stainless steel decorative pipe
Standard		0.6	0.7	0.8	0.9	1	1.2	1.5	2	2.5	3	3.5	4	4.5
Actual		0.32	0.4	0.5	0.6	0.7	0.9	1.1	1.4	1.9	2.4	2.9	3.4	3.9
Φ	12.3	0.57	0.71	0.88	1.05	1.21	1.53	1.84
Φ	12.7	0.59	0.74	0.91	1.09	1.26	1.91	1.91
Φ	15.3	0.72	0.89	1.11	1.32	1.53	2.33	2.33
Φ	16	0.75	0.93	1.16	1.38	1.6	2.45	2.45	3.06
Φ	17.2	0.81	1	1.25	1.49	1.73	2.19	2.65	3.31
Φ	18	0.85	1.05	1.31	1.56	1.81	2.3	2.78	3.47
Φ	19	0.89	1.11	1.38	1.65	1.91	2.43	2.94	3.68	4.86
Φ	20.2	0.95	1.18	1.47	1.76	2.04	2.6	3.14	3.93	5.2
Φ	22	1.04	1.29	1.61	1.92	2.23	2.84	3.43	4.31	5.71
Φ	25	1.18	1.47	1.83	2.19	2.54	3.24	3.93	4.94	6.56
Φ	28	1.32	1.65	2.06	2.46	2.86	3.65	4.42	5.57	7.41
Φ	29.2	1.38	1.72	2.14	2.57	2.98	3.81	4.62	5.82	7.75
Φ	31.8	1.51	1.88	2.34	2.8	3.25	4.16	5.04	6.36	8.49	10.55	12.53
Φ	35.8	1.7	2.12	2.64	3.16	3.67	4.69	5.7	7.2	9.63	11.98	14.26
Φ	38	1.8	2.25	2.8	3.35	3.9	4.99	6.07	7.66	10.25	12.77	15.22
Φ	42		2.49	3.1	3.71	4.32	5.52	6.72	8.5	11.39	14.21	16.95
Φ	48		2.85	3.55	4.25	4.95	6.34	7.71	9.75	13.09	16.36	19.55
Φ	50.8		3.01	3.76	4.5	5.24	6.71	8.17	10.34	13.89	17.36	20.76	24.09
Φ	60		3.56	4.45	5.33	6.2	7.95	9.68	12.26	16.5	20.66	24.75	28.77
Φ	63			4.67	5.6	6.52	8.35	10.18	12.89	17.35	21.74	26.05	30.29
Φ	70				6.22	7.25	9.29	11.32	14.36	19.34	24.25	29.09	33.85
Φ	76				6.76	7.88	10.1	12.31	15.61	21.04	26.4	31.69	36.9	42.03
Φ	80				7.12	8.3	10.64	12.97	16.45	22.18	27.84	33.42	38.93	44.36
Φ	85				7.57	8.82	11.31	13.79	17.49	23.6	29.63	35.59	41.47	47.28
Φ	88.9				7.92	9.23	11.84	14.43	18.31	24.71	31.03	37.28	43.45	49.55
Φ	101.6				9.06	10.56	13.55	16.52	20.97	28.32	35.59	42.78	49.91	56.96
Φ	108					11.23	14.41	17.58	22.31	30.13	37.88	45.56	53.16	60.69
Φ	114					11.86	15.21	18.56	23.56	31.84	40.04	48.16	56.21	64.18
Φ	127						16.96	20.7	26.28	35.53	44.7	53.8	62.82	71.76
Φ	133						17.77	21.69	27.54	37.23	46.85	56.4	65.87	75.26
Φ	141						18.85	23	29.21	39.51	49.72	59.86	69.93	79.92
Φ	159							25.96	32.98	44.62	56.18	67.67	79.08	90.42
Φ	168								34.86	47.17	59.41	71.57	83.65	95.66
Φ	219								45.54	61.66	77.7	93.68	109.57	125.39
Standard		0.6	0.7	0.8	0.9	1	1.2	1.5	2	2.5	3	3.5	4	4.5
Actual		0.32	0.4	0.5	0.6	0.7	0.9	1.1	1.4	1.9	2.4	2.9	3.4	3.9

Specifications of stainless steel decorative square pipe

Standard				0.6	0.7	0.8	0.9	1	1.2	1.5	2	2.5	3	3.5	4	4.5
Actual				0.32	0.4	0.5	0.6	0.7	0.9	1.1	1.4	1.9	2.4	2.9	3.4	3.9
□	10	×	10	0.59	0.74	0.91	1.09	1.26	1.59	1.91
□	12.7	×	12.7	0.76	0.69	1.17	1.4	1.62	2.06	2.48
□	15	×	15	0.9	1.12	1.39	1.66	1.93	2.45	2.96
□	19	×	19	1.14	1.42	1.77	2.12	2.46	3.13	3.8	4.77	6.33
□	20	×	20	1.2	1.5	1.87	2.23	2.59	3.31	4.01	5.04	6.69
□	22	×	22	1.32	1.65	2.06	2.46	2.86	3.65	4.43	5.57	7.42
□	25	×	25	1.51	1.88	2.34	2.8	3.26	4.16	5.06	6.37	8.5
□	28	×	28	1.69	2.11	2.63	3.14	3.66	4.68	5.68	7.17	9.59	11.93
□	30	×	30	1.81	2.26	2.82	3.37	3.92	5.02	6.1	7.7	10.31	12.84
□	36	×	36		2.72	3.39	4.06	4.72	6.05	7.36	9.3	12.48	15.58
□	38	×	38		2.87	3.58	4.29	4.99	6.39	7.78	9.83	13.2	16.5	19.72	22.86
□	40	×	40			3.77	4.51	5.26	6.73	8.2	10.36	13.92	17.41	20.82	24.16
□	50	×	50				5.66	6.59	8.45	10.29	13.03	17.54	21.98	26.34	30.63
□	60	×	60					7.92	10.16	12.39	15.69	21.16	26.55	31.86	37.1	42.26
□	80	×	80						13.59	16.57	21.02	28.39	35.68	42.9	50.04	57.11
□	100	×	100						17.01	20.76	26.35	35.62	44.82	53.94	62.98	71.95
□	120	×	120							24.95	31.68	42.85	53.95	64.97	75.92	86.8
□	150	×	150							31.23	39.67	53.7	67.65	81.53	95.34	109.1
Standard				0.6	0.7	0.8	0.9	1	1.2	1.5	2	2.5	3	3.5	4	4.5
Actual				0.32	0.4	0.5	0.6	0.7	0.9	1.1	1.4	1.9	2.4	2.9	3.4	3.9
□	20	×	10	0.9	1.12	1.39	1.66	1.93	2.45	2.96
□	25	×	13	1.14	1.42	1.77	2.12	2.46	3.13	3.8
□	30	×	10	1.2	1.5	1.87	2.23	2.59	3.31	4.01
□	30	×	15	1.35	1.69	2.1	2.52	2.92	3.73	4.53	5.7
□	30	×	20	1.51	1.88	2.34	2.8	3.26	4.16	5.06	6.37
□	38	×	25	1.9	2.37	2.96	3.54	4.12	5.28	6.42	8.1	10.85
□	40	×	10			2.34	2.8	3.26	4.16	5.05	6.37	8.5
□	40	×	20			2.82	3.37	3.92	5.02	6.1	7.7	10.31
□	50	×	10			2.82	3.37	3.92	5.02	6.1	7.7	10.31
□	50	×	15			3.06	3.66	4.26	5.45	6.63	8.37	11.21
□	50	×	25			3.53	4.23	4.92	6.3	7.67	9.7	13.02	16.27
□	60	×	10			3.29	3.94	4.59	5.88	7.15	9.03	12.12	15.13
□	60	×	15			3.53	4.23	4.92	6.3	7.67	9.7	13.02	16.27
□	60	×	20			3.77	4.51	5.26	6.73	8.2	10.36	13.92	17.41
□	60	×	30			4.24	5.08	5.92	7.59	9.24	11.7	15.73	19.69	23.58	27.39
□	60	×	40			4.72	5.66	6.92	8.45	10.29	13.03	17.54	21.98	26.34	30.63
□	75	×	45			5.67	6.8	7.92	10.16	12.39	15.69	21.16	26.55	31.86	37.1	42.26
□	80	×	20				5.66	8.92	8.44	10.29	13.03	17.54	21.98	26.34	30.63	34.84
□	80	×	40				6.8	9.92	10.16	12.39	15.69	21.16	26.55	31.86	37.1	42.26
□	80	×	60				7.94	10.92	11.87	14.48	18.36	24.77	31.11	37.38	43.57	49.68
□	95	×	45				7.94	11.92	11.87	14.48	18.36	24.77	31.11	37.38	43.57	49.68
□	100	×	50					12.92	12.73	15.53	19.69	26.58	33.4	40.14	46.8	53.4
□	120	×	40					13.92	13.59	16.57	21.02	28.39	35.68	42.9	50.04	57.11
□	120	×	60					14.92	15.3	18.67	23.69	32.01	40.25	48.42	56.51	64.53
□	150	×	100						21.3	26	33.01	44.66	56.24	67.73	79.16	90.51
□	200	×	100						25.58	31.23	39.67	53.7	67.65	81.53	95.34	109.1

*Standard dimension of stainless steel seamless pipe(OD Thickness /mm)**

630*8	159*6	108*3	60*3.5	45*6	32*5	18*3
530*8	159*5	102*6	60*3	45*5	32*4	18*2.5
480*8	159*4	102*5	57*13	45*4	32*3.5	18*2
426*10	159*3	102*4	57*12	45*3.5	32*3	16*3
426*7/8	140*4.5	89*10	57*10	45*3	32*2.5	16*2.5
426*6	140*4	89*8	57*8	45*2.5	32*2	16*2
377*10	133*12	89*6	57*6	45*2	30*3	14*3
377*7	133*8	89*5	57*5	42*10	28*3	14*2
377*8	133*6	89*4.5	57*4.5	42*7/8	27*5	12*2
377*6	133*5	89*4	57*4	42*6	27*4	12*1
325*8	133*4.5	89*3.5	57*3.5	42*5	27*3	10*2
325*6	133*4	89*3	57*3	42*4	27*2	10*1
273*8	133*3	89*2.5	57*2.5	42*3.5	25*4	8*1
273*6	120*8	89*2	57*2	42*3	25*3	6*1
273*5	120*6	76*8	51*10	38*6	252.56
219*8	120*5	76*6	51*8	38*5	25*2.5
219*6	120*4.5	76*5	51*6	38*4	2526
219*5	120*4	76*4	51*5	38*3	25*2
219*4.5	120*3.5	76*3.5	51*4	38*2.5	22*6
219*4	114*8	76*3	51*3.5	38*2	22*5
194*4.5	114*6	76*2.5	51*3	34*7	22*4
180*5	114*5	76*2	48*10	34*6	22*3
168*8	114*4	60*12	48*8	34*5	22*2
168*6	114*3	60*10	48*6	34*4	21*3
168*5	108*8	60*8	48*5	34*3.5	20*3
168*4	108*6	60*6	48*4	34*3	20*2
166*4.5	108*5	60*5	48*3.5	34*2.5	19*3
162*5	108*4.5	60*4.5	48*3	32*8	19*2.5
159*8	108*4	60*4	45*8	32*6	19*2

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