The SS 317 is a bit different from SS 317 L. The stainless steel 317 has chromium content in 4-30 percentages. Apart from austenitic, SS 317 is classified into ferritic and martensitic steel as well due to its crystalline structure. Moreover, it is an advanced version of SS 316. This advanced version has corrosion resistance and high strength.

The use of this grade steel gives good resistant and strength to the pipes and tubes. Therefore, the pipes and tubes are resistant towards sensitization as well. This makes the welding and thermal processes easier. Under the annealed condition, the pipes and tubes display their non-magnetic property. However, they show a slight magnetic property because of welding.

When it comes to corrosion, the pipes and tubes can resist chemical attacks that occur in pulp and paper industries this is due to the increased quantity of molybdenum, chromium, and nickel in SS. They can resist sulfuric acidic concentrations at 120 degrees F temperature. Even if the acid is present in 5 percent concentration then also the pipes and tubes made of SS317L can resist the corrosion. To ensure their performance under operating conditions, service tests are done on pipes and tubes in our testing unit.

Specification

Technical Data

Equivalent Grades Of SS 317 / 317L Pipes And Tubes

STANDARD	WERKSTOFF NR.	UNS	JIS	EN
SS 317	1.4449	S31700	SUS 317	-
SS 317L	1.4438	S31703	SUS 317L	X2CrNiMo18-15-4

Stainless Steel 317 / 317L Pipe And Tubes Chemical Properties

Grades	C	Mn	Si	P	S	Cr	Mo	Ni	Fe
SS 317	0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	18.00 - 20.00	3.00 - 4.00	11.00 - 15.00	57.845 min
SS 317L	0.035 max	2.0 max	1.0 max	0.045 max	0.030 max	18.00 - 20.00	3.00 - 4.00	11.00 - 15.00	57.89 min

Stainless Steel 317 / 317L Pipe / Tubes 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 %

FAQ

1.Q: Are you a factory or trading company?
A: We are professional manufacturer, and our company also is a very professional a trade company for steel products.We can provide a wide range of steel products.

2.Q:What do your factory do regarding quality control?
A: We have obtained ISO, CE and other certifications. From materials to products, we check every process to maintain good quality.

3.Q: Can I get samples before order ?
A: Yes, of course. Usually our samples are free. we can produce by your samples or technical drawings.

4.Q:How do you make our business long-term and good relationship?
A:We keep good quality and competitive price to ensure our customers benefit ; We respect every customer as our friend and we sincerely do business and make friends with them. No matter where they come from.

5.Q:what is your delivery time ?
A: Our delivery time is about one week, timing according to the number of customers.

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Square Tube Application

Feb 07, 2023

Rectangular tube is a kind of hollow long steel, also called flat tube, flat square tube or square flat tube (as the name implies). With the same bending and torsional strength, it is lighter in weight, so it is widely used for manufacturing mechanical parts and engineering structures.