409 Stainless Steel Square Tube
Stainless 409 square tube is a hollow strip of steel called a square tube because its cross-section is square. A large number of pipelines are used for conveying fluids, such as petroleum, natural gas, water, gas, steam, etc. In addition, when the bending and torsional strength are the same, they are lighter in weight, so they are also widely used in the manufacturing of mechanical parts and engineering structures.
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Description
Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of 409 stainless steel square tube in China. With abundant experience, we warmly welcome you to wholesale customized 409 stainless steel square tube from our factory. For price consultation, contact us.
A554 Gr 409/409L offers rectangular sections for specific applications, while ASTM A500 pipes are round or square, commonly used for structural purposes. The size of Stainless Steel A554 Gr 409/409L Rectangular Hollow Sections ranges from 15mm x 15mm to 200mm x 200mm. The wall thickness of it is ranging from 1.5mm to 6mm. It is available as double and single random and in cut length per the buyer's requests. The surface finishes are unpolished and polished. The standard specification of it is ASME, JIS, ASTM, DIN and various other international standards.
ASME SA554 409 / 409L Stainless Steel Rectangular Hollow Section Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | BS | JIS |
| SS 409 | 1.4512 | S40900 | 409S19 | SUS 409 |
| SS 409L | 1.4512 | S40903 | - | - |
Stainless Steel A554 409/409L Rectangular Hollow Section Chemical Composition
| Grade | C | Ni | Si | S | Mn | P | Cr | Ti | |
| SS 409/409L | min. | - | - | - | - | - | - | 10.5 | 6*(%C+%N) |
| max. | 0.03 | 0.5 | 1.00 | 0.02 | 1.00 | 0.04 | 11.7 | 0.5 | |
A554 Gr 409/409L SS Structural Rectangular Hollow Section Mechanical Properties
| Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HRB) max | Brinell (HB) max | |||
| 379 | 207 | 20 | 75 | 131 |
409 SS Tube Tolerance
|
Stainless Steel 409 Tube OD |
Stainless Steel 409 Tube Tolerance |
|---|---|
|
4mm to 35mm |
+/- 0.08mm |
|
35mm to 38mm |
+/- 0.15mm |
|
38mm to 60mm |
+/- 0.20mm |
|
60mm and above |
+/- 0.25mm |
Physical Properties 409 Stainless Steel Tubing
| Property | Value |
| Density |
Typically 7750 kg/m³ (484 lb/ft³) |
| Modulus of Elasticity |
220 GPa (31900 ksi) |
| Poisson's Ratio | 0.3 |
| Thermal Conductivity |
25.8 W/m·K (179 BTU·in/(hr·ft²·°F)) |
| Specific Heat Capacity |
460 J/kg·K (0.11 BTU/lb·°F) |
| Electrical Resistivity |
0.000084 Ω·m (84 µΩ·cm) |
| Melting Range |
1450 - 1510°C (2642 - 2750°F) |
| Tensile Strength |
380 - 550 MPa (55100 - 79800 psi) |
| Yield Strength |
170 - 360 MPa (24700 - 52200 psi) |
Packaging Method Of Stainless Steel Pipe
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Over the last 30 years, we have been serving our clients, we have built a strong clientele across 32 countries and 15 industrial verticals, right from basic industries such a paper to highly demanding offshore services.
Company Certificate
GNEE Steel Group is one of the top 10 inventory among China with more than 35,000 square maters factory area and at least 5,000 ton Stainless Steel related products in stock.
FAQ:
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 50% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment.or negotiable
Q: What shipping ports are there?
A:We usually ship from Shanghai, Tianjin, Qingdao and Ningbo ports.
Q: Can I visit your factory?
A:Customers from all over the world are welcome to visit our factory.
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