Stainless Steel 317 / 317L Buttweld Fittings Manufacturer and Supplier In Cape Town, South Africa

Khuliso Fittings is a reputable manufacturer and supplier located in Cape Town, South Africa, specializing in high-quality Stainless Steel 317 / 317L Buttweld Fittings. These fittings are designed to offer outstanding resistance to corrosion, pitting, and chemical damage, especially in environments rich in acids and chlorides. The 317 grade, with its elevated levels of molybdenum and chromium, provides enhanced strength and corrosion resistance, while the 317L variant, which has a lower carbon content, ensures better weldability and reduced risk of sensitization. Khuliso Fittings prides itself on delivering precision-engineered products that adhere to international standards, catering to industries like chemical processing, pulp and paper, petrochemical, and marine applications with durable and dependable solutions.

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Stainless Steel 317 / 317L Buttweld Fittings Specification

Specifications	ASME SA403 / ASTM A403
Dimension Standard	ASME/ANSI B16.9, MSS-SP-43/SP-79, ASME B16.28, ASME B16.25, ASME B16.49
Standard Size Range	1/2” NB TO 48” NB. (Fabricated, Seamless and 100% X-Ray Welded)
Manufacturing Type	Fabricated / Seamless / Welded / ERW
Bending Radius	R=1D, 2D, 3D, 5D, 6D, 8D, 10D, or Custom
Wall Thickness / Schedule	SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS / 3mm – 40mm
End Connection	Butt Weld
Melting Point	1400-1450°C for (WP317)
Outside Diameter (OD)	Seamless / Buttweld Fitting ( 1/2″～48″), ERW / Welded / Fabricated Buttweld Fitting (1/2″～48″)
Value Added Services	Hot Dipped Galvanizing, Electro Polish, Sand Blasting, Epoxy & FBE Coating, Threading, Soldering
Other Standards	MSS SP-75, ISO, SNSI, JIS, DIN, GB, DIN2617, JISB2311, JISB2312, JISB2313 / T12459GB / T13401, SH3408, SH3409HG / T21635HG / T21631SY / T05010
Material Test Certificates (MTC)	As per EN 10204 3.2 and EN 10204 3.1, Certifying NACE MR0175, NACE MR0103
Materials	AISI 317
Two Halve / Two Joint Buttweld Fittings Size	6″ to 48″
Manufacturing Specification	ASME: ANSI B16.9, ANSI B16.28, ASME B16.25, MSS-SP-43, DIN: DIN2605, DIN2615, DIN2616, DIN2617, DIN28011, EN: EN10253-1, EN10253-2
A403 SS Seamless Fittings	Size: 15 NB to 300 NB \| Sch.& Swg: Sch.5 to Sch.XXs
A403 SS Welded Fittings	Size: 15 NB to 600 NB \| Sch.& Swg: Sch.5 to Sch.80s

Stainless steel 317/317L buttweld fittings are made of austenitic stainless steel, consisting of 18-20% chromium, 11-15% nickel, 2-3% molybdenum, and trace amounts of carbon (0.08% maximum for 317L) Thus these substances Increase corrosion resistance, especially to chloride and sulfuric ho acids which is used for manufacturing. Technical properties include tensile strength of 520-720 MPa, yield strength of 205 MPa (for 317L) and elongation of 40%. 317L, with low carbon content, provides excellent woldability and reduced carbide precipitation, making it ideal for hot and corrosive environments

Stainless Steel 317 / 317L Buttweld Fittings Chemical Composition

Grade	C	Ni	Mn	P	S	Cr	Si	Mo	Fe
317	0.08 max	11.00 – 15.00	2 max	0.045 max	0.030 max	18.00 – 20.00	1 max	3.00 – 4.00	57.845 min

Stainless Steel 317 / 317L Buttweld Fittings Mechanical Properties

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
7.9 g/cm3	1400 °C (2550 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

ASTM A403 Stainless Steel 317 Buttweld Fittings Cross in South Africa, Stainless Steel 1.4449 Buttweld Pipe Fittings United kingdom, SS 317L Butt Weld Pipe Cap Cape Town, Stainless Steel 317 Eccentric Orangeucer West Cape Town, Stainless Steel 317L Equal Tee Gqeberha, 317 Stainless Steel Orangeucer in Birmingham, Stainless Steel 317L SR Elbow Exporter in Germiston,

Largest Stainless Steel 317 / 317L Buttweld Fittings Supplier in Cape Town, South Africa

The Stainless Steel 317 / 317L Buttweld Fittings are made up of roughly 18–20% chromium, 11–15% nickel, and 3–4% molybdenum, with carbon levels reaching up to 0.08% in 317 and a maximum of 0.03% in 317L. This specific composition grants them exceptional resistance to sulfuric acid, acetic acid, and chloride environments. These fittings boast a tensile strength of around 515 MPa, a yield strength of 205 MPa, and an elongation of 40%. They also provide excellent mechanical properties, weldability, and high-temperature performance, ensuring they can be relied upon in challenging service conditions.

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

If You Are Looking To Buy High Quality

Stainless Steel 317 / 317L Buttweld Fittings Equivalent Grade

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
317	1.4449	S31700	SUS 317	–	–	–	–

Why Choose Stainless Stainless Steel 317 / 317L Buttweld Fittings from Khuliso Fittings?

Stainless Steel 317 Buttweld Fittings from Khuliso Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.

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Stainless steel 317/317L Buttweld Fittings provide exceptional corrosion resistance, especially in high acid and chloride environments. The low carbon content of 317L prevents carbide precipitation, enhances weldability and reduces the risk of intergranular corrosion. These materials retain high strength and durability at elevated temperatures, making them suitable for a variety of industrial applications. Excellent resistance to pitting, crevice corrosion and stress corrosion cracking ensures long-term performance. In addition they are highly versatile, and can withstand extreme weather conditions, making them ideal for the chemical, fuel and pharmaceutical industries

Types of Stainless Steel 317 / 317L Buttweld Fittings

Stainless Steel 317 / 317L Buttweld Fittings Dimensions Chart

Nominal Pipe Size (inches)	Outside Diameter		45°Elbows		90° Elbows		180° Returns
	Outside Diameter		Long Radius		Long Radius	Short Radius	Long Radius
	(mm)	(inches)	Center to Face (inches)	Radius (inches)	Center to Face (inches)	Center to Face (inches)	Center to Center (inches)	Back to face (inches)
1	33.4	1.315	7/8		1 1/2	1	3	2 3/16
1/2	21.3	0.840	5/8		1 1/2	–	2	1 7/8
3/4	26.7	1.050	7/16		1 1/8	–	2 1/4	1 11/16
1 1/4	42.2	1.660	1		1 7/8	1 1/4	3 3/4	2 3/4
1 1/2	48.3	1.900	1 1/8	3	2 1/4	1 1/2	4 1/2	3 1/4
2	60.3	2.375	1 3/8	4	3	2	6	4 3/16
2 1/2	73.0	2.875	1 3/4	5	3 3/4	2 1/2	7 1/2	5 3/16
3	88.9	3.500	2	6	4 1/2	3	9	6 1/4
3 1/2	101.6	4.000	2 1/4	7	5 1/4	3 1/2	10 1/2	7 1/4
4	114.3	4.500	2 1/2	8	6	4	12	8 1/4
5	141.3	5.563	3 1/8	10	7 1/2	5	15	10 5/16
6	168.3	6.625	3 3/4	12	9	6	18	12 5/16
8	219.1	8.625	5	12	12	8	24	16 5/16
10	273.1	10.750	6 1/4	15	15	10	30	20 3/8
12	323.9	12.750	7 1/2	18	18	12	36	24 3/8

Are Custom Sizes Available for Stainless Steel 317 / 317L Buttweld Fittings?

Yes, custom sizes for Stainless Steel 317 / 317L Buttweld Fittings are available at Khuliso Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@khulisofittings.co.za.

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Application Industry of Stainless Steel 317 / 317L Buttweld Fittings

Stainless Steel 317 / 317L Buttweld Fittings find extensive use in applications that demand resistance to harsh chemicals and corrosive environments. Common applications include equipment for chemical and petrochemical processing, heat exchangers, condensers, machinery in paper mills, and marine systems. They are also ideal for power generation plants and the food processing industry, where hygiene and durability are crucial. Thanks to their superior corrosion resistance and mechanical strength, these fittings offer a long service life and dependable performance in settings that involve acids, chlorides, and high temperatures.