Marine Grade Stainless Steel Pipe

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Marine Grade Stainless Steel Pipe Manufacturer, Supplier and Exporter in Hamilton, New Zealand

For over four decades, Blundell Pipes and Tubes in Hamilton has been a trusted name for New Zealand’s marine and industrial sectors. We specialise in premium Marine Grade Stainless Steel Pipe, understanding the unique challenges posed by our coastal environment. Our commitment is to supply local engineers, boat builders, and fabricators with materials that truly stand the test of time, combining superior performance with the reliability only a long-standing, family-owned manufacturer can provide. We are your local partner for quality that endures, delivering the resilience needed for both tranquil harbours and the harshest ocean conditions.

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Marine Grade Stainless Steel, typically 316 or 316L, earns its name from a key addition: molybdenum. This crucial element significantly boosts its resistance to pitting and corrosion, especially from chlorides in saltwater environments. The material offers an excellent balance of strength and durability, maintaining its integrity under high pressure and stress. It also possesses good fabrication qualities, allowing it to be welded and formed with relative ease, which is essential for creating the complex systems and structures required in demanding marine and coastal applications.

Marine Grade Stainless Steel Pipe Specification

Size	1/8″(10.3mm) to 12″(323.8mm)
Grades	TP -304, 316,316L,
Schedule	5/5S,10/10S,20/20S,40/40S,80/80S,120/120S,160/160S according to ANSI B36.19/36.10
Marine Grade Stainless Steel Pipe Applications	marine fittings, marine fasteners, and marine structures
Finish	Satin Finish(180#.240#.320#).,Bright Finish(400#,600#,mirror),Mill Finish(2B),Hairline-Finish(HL/Brushed),Ti-gold, Glossy matt,dull and so on.

Marine Grade Stainless Steel Pipes Size

PIPE SIZE	OD IN INCHES	A.S.A. Pipe Schedules
PIPE SIZE	OD IN INCHES	5s	5	10s	10	20	30	40s & Std.	40	60	80s & E.H.	80	100	120	140	160	DBL E.H.
1/8	.405		.035.1383	.049.1863	.049.1863			.068.2447	068.2447		0.95.3145	0.95.3145
1/4	.540		.049.2570	.065.3297	.065.3297			.088.4248	088.4248		.119.5351	.119.5351
3/8	.675		.049.3276	.065.4235	.065.4235			.091.5676	.091.5676		.126.7338	.126.7338
1/2	.840	.065.5383	.065.5383	.083.6710	.083.6710			.109.8510	.109.8510		.1471.088	.1471.088				.1871.304	.2941.714
3/4	1.050	.065.6838	.065.6838	.083.8572	.083.8572			.1131.131	.1131.131		.1541.474	.1541.474				.2181.937	.3082.441
1	1.315	.065.8678	.065.8678	.1091.404	.1091.404			.1331.679	.1331.679		.1792.172	.1792.172				.2502.844	.3583.659
1-1/4	1.660	.0651.107	.0651.107	.1091.806	.1091.806			.1402.273	.1402.273		.1912.997	.1912.997				.2503.765	.3825.214
1-1/2	1.900	.0651.274	.0651.274	.1092.085	.1092.085			.1452.718	.1452.718		.2003.631	.2003.631				.2814.859	.4006.408
2	2.375	.0651.604	.0651.604	.1092.638	.1092.638			.1543.653	.1543.653		.2185.022	.2185.022				.3437.444	.4369.029
2-1/2	2.875	.0832.475	.0832.475	.1203.531	.1203.531			.2035.793	.2035.793		.2767.661	.2767.661				.37510.01	.55213.70
3	3.500	.0833.029	.0833.029	.1204.332	.1204.332			.2167.576	.2167.576		.30010.25	.30010.25				.43714.32	.60018.58
3-1/2	4.000	.0833.472	.0833.472	.1204.973	.1204.973			.2269.109	.2269.109		.31812.51	.31812.51					.63622.85
4	4.500	.0833.915	.0833.915	.1205.613	.1205.613			.23710.79	.23710.79	.28112.66	.33714.98	.33714.98		.43719.01		.53122.51	.67427.54
4-1/2	5.000							.24712.53			.35517.61						.71032.53
5	5.563	.1096.349	.1096.349	.1347.770	.1347.770			.25814.62	.25814.62		.37520.78	.37520.78		.50027.04		.62532.96	.75038.55
6	6.625	.1097.585	.1097.585	.1349.290	.1349.290			.28018.97	.28018.97		.43228.57	.43228.57		.56236.39		.71845.30	.86453.16
7	7.625							.30123.57			.50038.05						.87563.08

If You Are Looking To Buy High Quality

We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.

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Why Choose Marine Grade Stainless Steel Pipes from Blundell Pipes and Tubes?

Choosing Marine Grade Stainless Steel Pipes from Blundell Pipes and Tubes ensures high-quality materials with excellent corrosion resistance and durability. Our products are tailored to meet diverse industry standards, offering reliability and versatility for various applications. Our commitment to customer service and timely delivery makes us a trusted supplier.

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Largest Marine Grade Stainless Steel Pipes Supplier in Hamilton, New Zealand

Blundell Pipes and Tubes, one of the largest suppliers of Marine Grade Stainless Steel Pipes in Hamilton, New Zealand, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.

Marine Grade Stainless Steel Pipes Chemical Composition

Marine Grade Stainless Steel Pipe Grades	UNS	Si	Mn	S	C	P	Cr	Ni	Mo
TP304	S30400	1	2	0.03	0.08	0.045	18.0-20.0	8.0-11.0	–
TP304L	S30403	1	2	0.03	0.035	0.045	18.0-20.0	8.0-13.0	–

Marine Grade Stainless Steel Pipes Mechanical Properties

Material	Tensile Strength	Yield Strength	Heat	Temperure	Elongation %, Min
	Ksi (MPa), Min.	Ksi (MPa), Min.	Treatment	Min.
				º F(º C)
Stainless Steel	75(515)	30(205)	Solution	1900 (1040)	35

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Types of Marine Grade Stainless Steel Pipes

Marine Grade Stainless Steel Pipes Weight Chart

Nominal		SS Square Pipe Schedule 5			SS Square Pipe Schedule 10			SS Square Pipe Schedule 40
Inch	MM	Wt./MM	Kg./M	Kg./Ft	Wt./MM	Kg./M	Kg./Ft	Wt./MM	Kg./M	Kg./Ft
1 / 2	21	1.65	0.801	0.244	2.11	0.999	0.305	2.77	1.270	0.387
3 / 4	21.30	1.65	1.020	0.311	2.11	1.280	0.390	2.87	1.680	0.512
1	26.70	1.65	1.290	0.393	2.77	2.090	0.637	3.38	2.500	0.762
1 1 / 4	33.40	1.65	1.650	0.503	2.77	2.690	0.820	3.56	3.380	1.030
1 1 / 2	42.20	1.65	1.900	0.579	2.77	3.110	0.948	3.68	4.050	1.230
2	48.30	1.65	3.340	0.728	2.77	3.920	1.200	–	–	–
2 1 / 2	73.00	2.11	3.690	1.130	3.05	5.260	1.600	–	–	–
3	88.90	2.11	4.510	1.380	3.05	6.450	1.970	–	–	–
3 1 / 2	101.60	2.11	5.190	1.580	3.05	7.400	2.260	–	–	–

Are Custom Sizes Available for Marine Grade Stainless Steel Pipes?

Yes, we offer custom sizes for Marine Grade Stainless Steel Pipes to meet your specific requirements. Our team at Blundell Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@blundellpipes.co.nz.

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You’ll find Marine Grade Stainless Steel Pipes being widely utilized in shipbuilding, offshore oil and gas platforms, desalination units, seawater piping systems, heat exchangers, and ballast systems. They’re also a popular choice for coastal architectural structures, chemical processing, and marine equipment manufacturing. Thanks to their exceptional corrosion resistance, mechanical strength, and long service life, these pipes guarantee safe and efficient performance in the demanding conditions of marine and industrial environments.