Boiler 304 Stainless Steel Seamless Pipe / Unpolishing Ss Seamless Tubes
Boiler 304 Stainless Steel Seamless Pipe / Unpolishing Ss Seamless Tubes
1) Type: 304 Stainless Steel Seamless Pipe
2) Features: high-precision tube and ultra-long tube; outer diameter limit deviation ±0.01mm, inner diameter limit deviation ±0.025mm, inner hole circumference tolerance 0.020mm outer diameter is 1.3mm - 3.Omm, wall thickness is 0.015mm - 0.08mm, full length 1.5mm - 6.Omm metal precision steel pipe meets the requirements of high dimensional accuracy and cleanliness.
3) 304L sanitary grade stainless steel pipe processing method: cold rolling.
4) Surface treatment: annealing, cold rolling, manual polishing, mechanical polishing.
Pickling (Ra≤2.5μm), mechanical polishing (Ra≤0.4μm), bright annealing (Ra≤0.3μm), electropolishing (Ra≤0.2μm)
5) 304 sanitary stainless steel pipe size:
Outer diameter: 6-159mm
304L sanitary stainless steel pipe Thickness: 1.2, 1.5, 2.0, 2.5, 3.0, 3.5mm (can be produced according to customer requirements)
Length: produced according to customer requirements
6) Material: 304, 304L, 316, TP316L, 310
7) Steel pipe standard: GB/T3639 GB/T8713
8) 304L sanitary grade stainless steel pipe application:
A) Pharmaceutical, food, beer, drinking water and other industries
B) Bioengineering, chemical engineering, medical engineering
C) Air purification, aviation, desalination equipment, etc.
D) Precision Machinery Factory, Engine Factory
E) Medical machinery and equipment manufacturing plant, hydraulic equipment factory, vacuum equipment factory, etc.
304 Stainless Steel Seamless Pipe Parameters
| Standard | ASTM, AISI, GB, JIS, as customers' request |
| Technique | cold drawn |
| Size | OD: 6-114mm |
| TH: 0.25mm-3.0mm | |
| Length: 3-6m or customize | |
| Sample | Free sample is available |
| Tolerance | Outer diameter:±0.1mm |
| Thickness:±0.02mm | |
| Length:±1cm | |
| Quality test | we offer MTC( mill test certificate) |
| Package | Standard Seaworthy Package |
| Stock or not | enough stock |
| Payment terms | L/C T/T (30%DEPOSIT) |
| Delivery time | 7-15 dyas,or according to the order quantity or upon negotiation |
| Application | Railings, Balustrade, Furniture, Fence, Decorations, Constructions, Food industry, etc |
304 Stainless Steel Seamless Pipe Usage:
Milk and food industry, pharmaceutical industry, special inner surface requirements of the industry.
Process characteristics: inner bead leveling treatment, solution treatment, inner surface electropolishing
Performance characteristics: the internal surface roughness Ra is more than 0.2, the wall hanging residue is small, easy to clean, prevent bacterial growth, electrolytic polishing has a passivation effect, and the inner wall has good defense performance.
Testing methods: lateral, longitudinal flattening, reverse flattening, hydrostatic testing or eddy current testing, mechanical properties testing, internal surface roughness testing.
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