| Product Namee: | Stainless Steel Seamless Tube-BA | Standard: | SUS， JIS， AISI， ASTM， GB， DIN， EN |
|---|---|---|---|
| Specification: | ASTM A269， TP316L / TP304 / TP304L，etc. | O.D.: | 0.125′ TO 6′ (6MM TO 152.4MM) |
| W.T.: | 0.016′ TO 1′ (0.41MM TO 25.4MM) | Shape: | Round/Square/Rectangular/Oval |
| Delivery Condition: | Annealed And Pickled (AP)， Polished， Bright Annealed (BA)， Cold Drawn， MF | Technique: | Cold Rolled Hot Rolled |
| Application: | Marine & Offshore， Oil And Gas，boiler，heat Exchanger，handrail | ||
| High Light: | SS304 Bright Annealed Tube， Bright Annealed， ASME SA213 Bright Annealed Tube | ||
ASTM A213 / ASME SA213 Stainless Steel 304 Seamless Bright Annealed Tube
Most stainless steel tubing is heat treated by the bright annealing process， in which the tubing is annealed in a protective medium to prevent discoloration of the bright surface. Since austenitic stainless steel is the most often used tubing material， the heat treatment process is bright annealing of austenitic stainless steel in essence.
Stainless steel pipe and tubing are used for a variety of reasons: to resist corrosion and oxidation， to resist high temperatures， for cleanliness and low maintenance costs， and to maintain the purity of materials which come In contact with stainless.
SS304 Seamless Bright Annealed Tube Mechanical Properties
| SS GRADE | HEAT TREATMENT | TEMPERURE F (C) MINIMUM | HARDNESS | |
|---|---|---|---|---|
| BRINELL | ROCKWELL | |||
| TP304 | Solution | 1900 (1040) | 192HBW/ 200HV | 90HRB |
| TP304L | Solution | 1900 (1040) | 192HBW/ 200HV | 90HRB |
| TP316 | Solution | 1900(1040) | 192HBW/ 200HV | 90HRB |
| TP316L | Solution | 1900(1040) | 192HBW/ 200HV | 90HRB |
| TP321 | Solution | 1900(1040) F | 192HBW/ 200HV | 90HRB |
| TP347 | Solution | 1900(1040) | 192HBW/ 200HV | 90HRB |
SS304 Seamless Bright Annealed Tube Chemical Composition
| SS GRADE | ASTM A269/SA 269 CHEMICAL COMPOSITION % MAXIMUM | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| C | MN | P | S | SI | CR | NI | MO | N B | NB | TI | |
| TP304 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | — | — | — | — |
| TP304L | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-12.0 | — | — | — | — |
| TP316 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | — | — | — |
| TP316L | 0.035 D | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-15.0 | 2.00-3.00 | — | — | — |
| TP321 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 | 9.0-12.0 | — | — | — | 5C -0.70 |
| TP347 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 | 9.0-12.0 | 10C -1.10 | — | ||
ASTM A213/ASME SA213 Size Tolerance
| A | thickness tolerance-hot roll(HR)-A213 | |||
| 外径范围 | Type | Wall Thickness Tolerance | ||
| OD Range | Average | Min. | ||
| 1 | 6~65mm(Incl.) | SMLS &WLD | (-12.5%，+20%) | |
| 2 | >65mm | SMLS &WLD t/D<=5% | (-12.5%，+22.5%) | |
| 3 | >65mm | SMLS &WLD t/D>5% | (-12.5%，+15%) | |
| B | thickness tolerance-hot roll(HR)-ASTM A1016 | |||
| 外径范围 | Type | Wall Thickness Tolerance | ||
| OD Range | Average | Min. | ||
| 1 | 0~12.7mm(Incl.) | SMLS &WLD | (0，+30%) | |
| 2 | 12.7~38.1mm(Incl.) | SMLS &WLD | (0，+20%) | |
| 3 | 38.1~88.9mm(Incl.) | SMLS &WLD | (0，+20%) | |
| 3 | 88.9~139.7mm(Incl.) | SMLS &WLD | (0，+20%) | |
| 4 | 139.7~203.2mm(Incl.) | SMLS &WLD | (0，+20%) | |
| C | thickness tolerance-cold roll(CR)-A1016 | |||
| 外径范围 | Type | Wall Thickness Tolerance | ||
| OD Range | Under (-) | Over(+) | ||
| 1 | 0~38.1mm(Incl.) | SMLS | 0 | 20% |
| 2 | >38.1mm | SMLS | 0 | 22% |
| 3 | All Sizes | WLD | 0 | 18% |
| Average wall thickness tolerance shall be (-/+10 )% | ||||
| D | outside diameter tolerance-cold roll(CR)-A1016 | |||
| 外径范围 | Type | Wall Thickness Tolerance | ||
| OD Range | Under (-) | Over(+) | ||
| 1 | 0~25mm(Incl.) | SMLS & WLD | 0.11mm | 0.1mm |
| 2 | 25~40mm(Incl.) | SMLS & WLD | 0.15mm | 0.15mm |
| 3 | 40~50mm(Incl.) | SMLS & WLD | 0.2mm | 0.2mm |
| 4 | 50~65mm(Incl.) | SMLS & WLD | 0.25mm | 0.25mm |
| 5 | 65~75mm(Incl.) | SMLS & WLD | 0.3mm | 0.3mm |
| 6 | 75~100mm(Incl.) | SMLS & WLD | 0.38mm | 0.38mm |
| 7 | 100~200mm(Incl.) | SMLS & WLD | 0.64mm | 0.38mm |
| 8 | 200~225mm(Incl.) | SMLS & WLD | 1.14mm | 0.38mm |
| E | outside diameter tolerance-heat roll(HR)-A1016 | |||
| 外径范围 | Type | Wall Thickness Tolerance | ||
| OD Range | Under (-) | Over(+) | ||
| 1 | 0~100mm(Incl.) | SMLS | 0.4mm | 0.4mm |
| 2 | 100~200mm(Incl.) | SMLS | 1.2mm | 0.4mm |
| 3 | 200~225mm(Incl.) | SMLS | 1.6mm | 0.4mm |
| F | 长度公差范围-A1016 | |||
| Length Tolerance | ||||
| Range(m) | TYPE | OD range | Tolerance | |
| 1 | 0~24ft(7.3m Incl.) | SMLS +Hot Finished | All Sizes | 0，+5mm |
| 2 | 0~24ft(7.3m Incl.) | SMLS +Cold Finished | <50.8mm | 0，+3mm |
| 3 | 0~24ft(7.3m Incl.) | SMLS +Cold Finished | 50.8mm(Incl.) to Up | 0，+5mm |
| If length >7.3m， each 10ft(3m) add 3mm ， If the length >24ft ， tolerence (0，+13mm) | ||||
| G | 直度公差范围-A1016 | |||
| Straightness Tolerance | ||||
| Range(m) | Thickness Range | Maximum Curvature in any 3 ft (Inch) | Maximum Curvature in Total Length(Inch) | |
| 1 | Up to 5" (Incl.) | Over 3% of OD to 0.5" | 0.03Inch | 0.01 X Length Ft |
| 2 | 5" ~ 8" (Incl.) | Over 4% of OD to 0.75" | 0.045Inch | 0.015 X Length Ft |
| 3 | 8" ~ 12.75" (Incl.) | Over 4% of OD to 1.0" | 0.060Inch | 0.020 X Length Ft |
Application
Chemical and petrochemical
Power generation
Renewable energy
Pulp and Paper
Process piping
Pharmaceutical
Food and beverage
Oil and gas
Mining
Water/waste
Marine Industry
or Fertilizers
