Stainless Steel 317 / 317L Buttweld Fittings

Heer Fittings is a trusted manufacturer and exporter of Stainless Steel 317 / 317L Buttweld Fittings, headquartered in Delhi, India. These high-performance fittings are designed to provide maximum corrosion resistance in corrosive environments, especially those with chemicals and acids. SS 317 has more molybdenum content for improved pitting resistance, whereas 317L provides low carbon for better weldability and intergranular corrosion resistance. Our buttweld fittings are produced with high-tech methods and precise quality control to satisfy international standards. Heer Fittings caters to many industries, such as chemical processing, petrochemicals, pharmaceuticals, and marine, in both local and international markets.

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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 consist of chromium (18–20%), nickel (11–15%), molybdenum (3–4%), and low carbon content in 317L (max 0.03%). These alloys provide better resistance against chemical attack, especially against acidic and chloride-bearing mediums. SS 317 possesses a tensile strength of around 515 MPa, yield strength of 205 MPa, and elongation of about 35%. 317L retains the same mechanical properties but with improved weldability and less chance of sensitization. The two grades are good in terms of excellent formability, high-temperature strength, and resistance against pitting and crevice corrosion and are well suited for stringent industrial applications.

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 %

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Largest Stainless Steel 317 / 317L Buttweld Fittings Supplier in Delhi, India

Heer Fittings is a leading supplier of Stainless Steel 317 Buttweld Fittings in Delhi, India. We offer an extensive range of Stainless Steel 317L Buttweld Fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.

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 Heer Fittings?

Stainless Steel 317 Buttweld Fittings from Heer 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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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 Heer Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@heerfittings.com.

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Application Industry of Stainless Steel 317 / 317L Buttweld Fittings

Stainless Steel 317 / 317L Buttweld Fittings find extensive applications in industries dealing with corrosive fluids and high temperatures. Typical applications include petrochemical refineries, chemical processing plants, pulp and paper mills, food and beverage equipment, and marine systems. Such fittings are best suited for piping systems demanding resistance to phosphoric, hydrochloric, and sulfuric acids. 317L is particularly ideal for welded construction since it has a low content of carbon, which lowers the potential for intergranular corrosion. Their high strength, corrosion resistance, and weldability make SS 317 / 317L buttweld fittings an excellent option for high-performance piping systems operating under rigorous industrial conditions.