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Grade300 SeriesInvoicingBy Actual Weight
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Steel Grade301L, S30815, 301, 316Ti, 204C3, 316L, 410, 441, 316, 443, 436L, 321, 314, 304, 204C2, 309S, 436, 420J2, 409L, 904L, 304L, 370, 301LN, 305, 429Surface Finish2B
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Tolerance±1%TypeSeamless
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Model Number304 201 316Alloy Or NotNon-Alloy
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Applicationpetroleum, chemical industry, mechanical equipmentDelivery Timewithin 7 days
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Processing ServiceMoulding, Cutting, Punching, Decoiling, Welding, BendingSection ShapeSquare
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StandardASTMWelding Line TypeSeamless
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Product nameStainless Steel TubingShapeRound.square.Rectangular
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Material200 Series/300 Series/400seriesTechniqueCold Rolled Hot Rolled
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SurfaceCustomers't RequirementThickness1-150mm
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PackingStandard Sea-worthy PackingMOQ1Ton
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Payment termsL/C T/T (30%DEPOSIT)Delivery timewithin 7days
Stainless square tube has one actual1–150mm wall-range label. Title40x40 and60x60 side dimensions require exact units and a physically compatible selected wall.
Define the hollow section
Supply side dimensions, wall, corner geometry and length together. The broad thickness range cannot describe every possible wall within those small square requests.
- Seamless type.
- Square section field.
- 304/201/316 model references.
- 2B Surface Finish field.
- Customer-requested surface wording.
Verify actual material
Broad200/300/400-series grades and a Non-Alloy field need actual chemistry records. Select the requested stainless grade instead of inferring a complete family matrix.
Request building acceptance
Agree actual geometry, process and surface inspection. Building and chemical application contexts supply no structural capacity, pressure rating or corrosion life for the unspecified tube.





