Stainless Steel 347H Hollow Bar

Starc Metals, located in Canberra, Australia, has built a solid reputation as a reliable manufacturer and supplier of top-notch stainless steel products, with a particular focus on Stainless Steel 347H Hollow Bars. These bars are celebrated for their outstanding resistance to corrosion, impressive strength at high temperatures, and overall durability. Starc Metals is committed to ensuring that every product meets international quality standards. The company caters to various industries, including chemical processing, aerospace, power generation, and industrial engineering, providing precision, dependability, and prompt delivery. By leveraging cutting-edge production technology and rigorous quality control, Starc Metals delivers Stainless Steel 347H Hollow Bars that blend strength, performance, and longevity—making them the go-to choice for demanding industrial and commercial applications throughout Australia.

ASTM A276 Stainless Steel 347H Hollow Bar Australia, SS 347H Round Bars United kingdom, Stainless Steel S34700 Hollow Bars Canberra, Stainless Steel 1.4550 Hollow Rods Melbourne, Steel 347H Hollow Bars Exporter Adelaide, ASME SA479 SS 347H Hollow Rods Sydney, 347H Stainless Steel Hollow Bar Brisbane, Stainless Steel 347H Hollow Bar Manufacturer in Canberra, Australia.

SS 347H Hexagon Hollow Bars

SS 347H Hollow Bar

Stainless Steel 347H Hollow Hex Rod

What is Stainless Steel 347H Hollow Bar

Stainless Steel 347H Hollow Bars are an austenitic stainless steel grade that has been stabilized with niobium, offering exceptional resistance to intergranular corrosion and high-temperature oxidation. Their makeup consists of 17–19% chromium, 9–13% nickel, 0.04–0.10% carbon, along with trace amounts of manganese, silicon, and niobium. In terms of mechanical properties, these bars boast a tensile strength ranging from 515 to 750 MPa, a yield strength of about 205 to 275 MPa, and a hardness of approximately 170 to 200 HB. They maintain excellent mechanical characteristics even at elevated temperatures, combining strength, ductility, and corrosion resistance—making them perfect for challenging engineering and industrial settings.

Stainless Steel 347H Hollow Bars Australia, Stainless Steel 347H Hollow Rods United kingdom, SS 347H Hollow Bar Canberra, SUS 347H Hollow Bars and Rods Melbourne, SS 347H Hollow Bar Adelaide, SS 347H Hollow Bar Sydney, SS 347H Polished Hollow Bar Brisbane, Stainless Steel 347H Hollow Rods Supplier in Canberra, Australia.

Stainless Steel 347H Hollow Bar Specifications

Standard	ASTM A276 / A479, ASME SA276 / A479
Round Bar Size	3mm~ 800mm
Square Bar Size	4mm* 4mm ~100mm* 100mm
Flat Bar Size	2mm ~ 100mm
Hex Bar Size	2mm ~ 100mm
Angle Size	3mm* 20mm* 20mm~ 12mm* 100mm* 100mm
Thickness	50 mm to 6000 mm Long
Length	1 To 6 Meters, Custom Cut Length
Form	Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc

Stainless Steel 347H Hollow Bar cHEMICAL COMPOSITIONS

Grade	C	Mn	Si	P	S	Cr	Co + Ta	Ni	Fe
SS 347H	0.08 max	2 max	0.75 max	0.045 max	0.03 max	17 – 20	10xC min 1.00 max	9 – 13	62.74

Stainless Steel 347H Hollow Bar mechanical properties

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	40 %

Stainless Steel 347H Hollow Bar Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
SS 347h	1.4550	S34700	SUS 347	–	08Ch18N12B	–	X6CrNiNb18-10

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STAINLESS STEEL 347H HOLLOW BAR SIZES

Stainless Steel 347h Hollow Bar Size		Chucked true to OD				Chucked true to ID
OD, mm	ID, mm	Max. OD, mm	Min. ID, mm	Max. OD, in.	Min. ID, in.	Max. OD, mm	Min. ID, mm	Max. OD, in.	Min. ID, in.
32	20	31	21.9	1.220	0.862	30	21	1.185	0.827
32	16	31	18	1.220	0.709	30	17	1.181	0.669
36	25	35	26.9	1.378	1.059	34.1	26	1.343	1.024
36	20	35	22	1.378	0.866	34	21	1.339	0.827
36	16	35	18.1	1.378	0.713	33.9	17	1.335	0.669
40	28	39	29.9	1.535	1.177	38.1	29	1.500	1.142
40	25	39	27	1.535	1.063	38	26	1.496	1.024
40	20	39	22.1	1.535	0.870	37.9	21	1.492	0.827
45	32	44	33.9	1.732	1.335	43.1	33	1.697	1.299
45	28	44	30	1.732	1.181	43	29	1.693	1.142
45	20	44	22.2	1.732	0.874	42.8	21	1.685	0.827
50	36	49	38	1.929	1.496	48	37	1.890	1.457
50	32	49	34.1	1.929	1.343	47.9	33	1.886	1.299
50	25	49	27.2	1.929	1.071	47.8	26	1.882	1.024
56	40	55	42	2.165	1.654	54	41	2.126	1.614
56	36	55	38.1	2.165	1.500	53.9	37	2.122	1.457
56	28	55	30.3	2.165	1.193	53.7	29	2.114	1.142
63	50	62	51.9	2.441	2.043	61.1	51	2.406	2.008
63	45	62	47	2.441	1.850	61	46	2.402	1.811
63	40	62	42.2	2.441	1.661	60.8	41	2.394	1.614
63	36	62	38.3	2.441	1.508	60.7	37	2.390	1.457
63	32	62	34.4	2.441	1.354	60.6	33	2.386	1.299
71	56	69.9	58	2.752	2.283	68.9	57	2.713	2.244
71	45	69.9	47.3	2.752	1.862	68.6	46	2.701	1.811
71	40	69.9	42.4	2.752	1.669	68.5	41	2.697	1.614
71	36	69.9	38.5	2.752	1.516	68.4	37	2.693	1.457
75	60	73.8	62	2.906	2.441	72.8	61	2.866	2.402
75	50	73.8	52.2	2.906	2.055	72.6	51	2.858	2.008
75	40	73.8	42.5	2.906	1.673	72.3	41	2.846	1.614
80	63	78.8	65	3.102	2.559	77.8	64	3.063	2.520
80	50	78.8	52.4	3.102	2.053	77.4	51	3.047	2.008
80	45	78.8	47.5	3.102	1.870	77.3	46	3.043	1.811
80	40	78.8	42.6	3.102	1.677	77.2	41	3.039	1.614
85	67	83.7	69.1	3.295	2.720	82.6	68	3.252	2.677
85	55	83.7	57.4	3.295	2.260	82.3	56.0	3.240	2.205
85	45	83.7	47.6	3.295	1.874	82.1	46.0	3.232	1.811
90	71	88.6	73.1	3.488	2.878	87.6	72.1	3.449	2.839
90	63	88.6	65.3	3.488	2.571	87.3	64.0	3.437	2.520
90	56	88.6	58.5	3.488	2.303	87.1	57.0	3.429	2.244
90	50	88.6	52.6	3.488	2.071	87.0	51.0	3.425	2.008
95	75	93.5	77.3	3.681	3.041	92.4	76.2	3.641	2.997
95	67	93.5	69.3	3.681	2.728	92.2	68.0	3.630	2.677
95	50	93.5	52.7	3.681	2.075	91.8	51.0	3.614	2.008
100	80	98.5	82.3	3.878	3.240	97.4	81.2	3.835	3.197
100	71	98.5	73.4	3.878	2.890	97.2	72.1	3.827	2.839
100	63	98.5	65.5	3.878	2.579	97.0	64.0	3.819	2.520
100	56	98.5	58.7	3.878	2.311	96.8	57.0	3.811	2.244
106	80	104.4	82.5	4.110	3.248	103.1	81.2	4.059	3.197
106	71	104.4	73.5	4.110	2.894	103.0	72.1	4.055	2.839
106	63	104.4	65.7	4.110	2.587	102.7	64.0	4.043	2.520
106	56	104.4	58.9	4.110	2.319	102.5	57.0	4.035	2.244
112	90	110.3	92.5	4.343	3.642	109.2	91.4	4.299	3.598
112	80	110.3	82.6	4.343	3.252	108.9	81.2	4.287	3.197
112	71	110.3	73.7	4.343	2.902	108.7	72.1	4.280	2.839
112	63	110.3	65.8	4.343	2.591	108.5	64.0	4.272	2.520
118	90	116.2	92.7	4.575	3.650	114.9	91.4	4.524	3.598
118	80	116.2	82.8	4.575	3.260	114.6	81.2	4.512	3.197
118	71	116.2	73.8	4.575	2.906	114.5	72.1	4.508	2.839
118	63	116.2	66.0	4.575	2.598	114.2	64.0	4.496	2.520
125	100	123.1	102.7	4.846	4.043	121.9	101.5	4.799	3.996
125	90	123.1	92.8	4.846	3.654	121.7	91.4	4.791	3.598
125	80	123.1	82.9	4.846	3.264	121.4	81.2	4.780	3.197
125	71	123.1	74.0	4.846	2.913	121.3	72.1	4.772	2.839
132	106	130.0	108.8	5.118	4.283	128.8	107.6	5.071	4.236
132	90	130.0	93.0	5.118	3.661	128.4	91.4	5.055	3.598
132	80	130.0	83.1	5.118	3.272	128.1	81.2	5.043	3.197
132	71	130.0	74.2	5.118	2.921	121.2	72.1	5.035	2.839
140	112	137.9	115	5.429	4.528	136.6	113.7	5.378	4.476
140	100	137.9	103.1	5.429	4.059	136.3	101.5	5.366	3.996
140	90	137.9	93.2	5.429	3.669	136.1	91.4	5.358	3.598
140	80	137.9	83.3	5.429	3.280	135.8	81.2	5.346	3.197
150	125	147.7	128.1	5.815	5.043	146.5	126.9	5.768	4.996
150	106	147.7	109.3	5.815	4.303	146	107.6	5.748	4.236
150	95	147.7	98.4	5.815	3.874	145.7	96.4	5.736	3.795
150	80	147.7	83.6	5.815	3.291	145.3	81.2	5.720	3.197
160	132	157.6	135.3	6.205	5.327	156.3	134	6.154	5.276
160	122	157.6	125.4	6.205	4.937	156	123.8	6.142	4.874
160	112	157.6	115.5	6.205	4.547	155.8	113.7	6.134	4.476
160	90	157.6	94.0	6.205	3.701	155.2	91.4	6.110	3.598
170	140	167.4	143.5	6.591	5.650	166	142.1	6.535	5.594
170	130	167.4	133.6	6.591	5.260	165.8	132	6.528	5.197
170	128	167.4	131.6	6.591	5.181	165.7	130	6.524	5.118

Stainless Steel 347H Hollow Bar Types

ASTM A276 Stainless Steel 347H Hollow Bar Australia, SS 347H Round Bars United kingdom, Stainless Steel S34700 Hollow Bars Canberra, Stainless Steel 1.4550 Hollow Rods Melbourne, Steel 347H Hollow Bars Exporter Adelaide, ASME SA479 SS 347H Hollow Rods Sydney, 347H Stainless Steel Hollow Bar Brisbane, Stainless Steel 347H Hollow Bar Manufacturer in Canberra, Australia.

Frequently Asked Questions (FAQ)

What are the key benefits of using SS 347H Hollow Bar in high-temperature applications?

SS 347H Hollow Bar offers excellent resistance to intergranular corrosion, high strength, and oxidation at elevated temperatures. Its high carbon content enhances creep resistance and mechanical properties, making it ideal for high-temperature applications like heat exchangers, reactors, and furnace parts, where durability and long-term performance are crucial.

How does the high carbon content in SS 347H enhance its mechanical properties?

The high carbon content in SS 347H improves its strength, particularly at elevated temperatures, by enhancing its resistance to creep and increasing tensile strength. This results in better durability, making it suitable for high-stress applications in extreme environments.

In which industries is SS 347H Hollow Bar most commonly used for its corrosion resistance?

SS 347H Hollow Bar is commonly used in the chemical processing, aerospace, power generation, and petrochemical industries. Its excellent corrosion resistance makes it ideal for applications involving high temperatures, aggressive chemicals, and harsh environments, ensuring long-lasting performance.

Stainless Steel 347H Hollow Bar Uses

Stainless Steel 347H Hollow Bars find extensive use in applications that demand high-temperature strength, corrosion resistance, and long-lasting durability. Typical applications include heat exchangers, furnace components, chemical processing equipment, and industrial machinery that operates under high temperatures. Their ability to resist intergranular corrosion and their remarkable thermal stability make them ideal for power plants, petrochemical facilities, and high-pressure piping systems. Additionally, they are utilized in aerospace structures, pressure vessels, and exhaust systems, showcasing their versatility and reliability in various demanding environments.

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