TOBO STEEL GROUP CHINA
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 7500 tons per year |
| Delivery Time | According to the qty |
| Packaging Details | in plastic bags then in bundles |
| Thickness | standard schedule |
| Color | Customer's Requirement |
| Packing | inner poly bag,Plastic Bag+Carton,plywood case or pallet,According customer's requesment |
| Type | Pipe |
| Standard | ANSI / ASME |
| Surface | As customer's requirement |
| Size | Customized Size |
| Brand Name | TOBO |
| Model Number | EL####001 |
| Certification | BV/ABS/LR/TUV/DNV/BIS/API/PED |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 7500 tons per year |
| Delivery Time | According to the qty | Packaging Details | in plastic bags then in bundles |
| Thickness | standard schedule | Color | Customer's Requirement |
| Packing | inner poly bag,Plastic Bag+Carton,plywood case or pallet,According customer's requesment | Type | Pipe |
| Standard | ANSI / ASME | Surface | As customer's requirement |
| Size | Customized Size | Brand Name | TOBO |
| Model Number | EL####001 | Certification | BV/ABS/LR/TUV/DNV/BIS/API/PED |
| Place of Origin | CHINA | ||
| High Light | Round Duplex Stainless Steel Tube ，Square Duplex Stainless Steel Pipe ，440 Stainless Steel Seamless Pipe | ||
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Shaw Stainless & Alloy maintains a large inventory of high quality standard and specialty stainless steel pipe, fittings and accessories ready to ship quickly.
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Stainless Steel Pipe Applications
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Tolerance grade
| Grade | Outside diameter tolerance | Grade | Wall thickness tolerance |
| D1 | ±1.50% but at least ±0.75mm | T1 | ±15% but at least ±0.60mm |
| D2 | ±1.00% but at least ±0.50mm | T2 | ±12.5% but at least ±0.40mm |
| D3 | ±0.75% but at least ±0.30mm | T3 | ±7.5% but at least ±0.15mm |
| D4 | ±0.50% but at least ±0.10mm | T4 | ±5.0% but at least ±0.10mm |
Chemical composition
| Grade | Chemical Composition | ||||||||
| C (max) | Si (max) | Mn (max) | P (max) | S (max) | Ni | Cr | Mo | Other | |
| TP 304 | 0.08 | 0.75 | 2 | 0.04 | 0.03 | 8-11 | 18-20 | ||
| TP 304H | 0.04-0.10 | 0.75 | 2 | 0.04 | 0.03 | 8-11 | 18-20 | ||
| TP 304L | 0.035 | 0.75 | 2 | 0.04 | 0.03 | 8-13 | 18-20 | ||
| TP 309S | 0.08 | 0.75 | 2 | 0.04 | 0.03 | 8-13 | 18-20 | ||
| TP 310S | 0.08 | 0.75 | 2 | 0.045 | 0.03 | 12-15 | 22-24 | ||
| TP 316 | 0.08 | 0.75 | 2 | 0.04 | 0.03 | 19-22 | 24-26 | ||
| TP 316L | 0.035 | 0.75 | 2 | 0.04 | 0.03 | 10-15 | 16-18 | ||
| TP 316Ti | 0.08 | 0.75 | 2 | 0.04 | 0.03 | 11-14 | 16-18 | ||
| TP 317 | 0.08 | 0.75 | 2 | 0.04 | 0.03 | 11-14 | 16-18 | ||
| TP 321 | 0.08 | 0.75 | 2 | 0.04 | 0.03 | 9-13 | 18-20 | ||
| TP 321H | 0.04-0.10 | 0.75 | 2 | 0.04 | 0.03 | 9-13 | 17-20 | ||
| TP 347 | 0.08 | 0.75 | 2 | 0.04 | 0.03 | 9-13 | 17-20 | ||
| TP 347H | 0.04-0.10 | 0.75 | 2 | 0.04 | 0.03 | 9-13 | 17-20 | ||
Tolerance standard
| Item | ASTM A213 | ASTM A312 | ASTM A269 | |||
| O.D. | tolerance | O.D. | tolerance | O.D. | tolerance | |
| Outside diameter tolerance(mm) | <25.4 | ±0.10 | 10.3-48.3 | +0.4/-0.8 | 12.7 < | +0.13/-0.13 |
| 25.4-≤38.1 | ±0.15 | >48.3-114.3 | +0.8/-0.8 | 12.7-38.1 | +0.13/-0.13 | |
| >38.1-<50.8 | ±0.20 | >114.3-219.1 | +1.6/-0.8 | 38.1-88.9 | +0.25/-0.25 | |
| 50.8-<63.5 | ±0.25 | >219.1-457.2 | +2.4/-0.8 | 88.9-139.7 | +0.38/-0.38 | |
| 63.5-<76.2 | ±0.30 | >457.2-660.4 | +3.2/-0.8 | 139.7-203.2 | +0.76/-0.76 | |
| 76.2-≤101.6 | ±0.38 | >660.4-864 | +4/-0.8 | |||
| >101.6-≤190.5 | ±0.38/-0.64 | >864-1219.2 | +4.8/-0.8 | |||
| >190.5-≤228.6 | ±0.38/-1.14 | |||||
| Thickness tolerance(mm) | O.D. | tolerance | ±12.5%t | O.D. | tolerance | |
| ≤38.1 | +20%t/0 | ≤38.1 | ±15%t | |||
| >38.1 | +22%t/0 | >38.1 | ±10%t | |||
| Item | ASTM A213/A213M | ASTM A312/A312M | ||||
| Grade | TP304 | TP304L | TP304 | TP304L | ||
| TP316 | TP316L | TP316 | TP316L | |||
| TP317 | TP317L | TP317 | TP317L | |||
| TP347 | TP310S | TP347 | TP310S | |||
| TP309H* | TP310H* | TP317* | TP310H* | |||
| TP321HΔ | TP321HΔ | |||||
| ≥170; | ≥205 | ≥170; | ≥205 | |||
| ≥485 | ≥515 | ≥485; | ≥515 | |||
| ≥35 | ≥35 | ≥35 | ≥35 | |||
| Flattening Test | H=1.09t/(0.09+t/D) | H=1.09t/(0.09+t/D) | ||||
| Flange Test | 21-68% | |||||
| Intergranular corrosion | "*"﹑"Δ"ASTM E112, min 6# | |||||
| Hydraulic test(Mpa) | D | P max | P=220.6t/D | D | P max | ASTM A530/A530M D≤270MM P=2Rt/D R=50%σ0.2 |
| <25.4 | 7 | ≤88.9 | 17 | |||
| 25.4-<38.1 | 10 | |||||
| 38.1-<50.8 | 14 | >88.9 | 19 | |||
| 50.8-<76.2 | 17 | |||||
| 76.2-<127 | 24 | |||||
| ≥127 | 31 | |||||
| Metallograph Analysis | STM A262 E | ASTM A262 E | ||||
| Non-Destructive Test | ASTM E213 E309 E426 | ASTM E213 E309 E426 | ||||
| Hardness | HRB<90 | RB<90 | ||||
The Test Requirements of Standards
| Standard | Chemical Composition | Tensile Strength | Yeild Point | Tension Test | Rockwell Hardness | Flattening Test | Flaring Test | Hydrostatic |
| ASTM A312 | X | X | X | X | X | |||
| ASTM A213 | X | X | X | X | X | X | X | X |
| ASTM A269 | X | X | ||||||
| ASTM A511 | X | X | X | X | ||||
| ASTM A789 | X | X | X | X |
| Standard | Ultrasonic | Eddy Current | Intergranular Corrosion | Grain size | α/γ | Surface Quality | Tolerance | |
| ASTM A312 | X | X | X | |||||
| ASTM A213 | X | X | X | |||||
| ASTM A269 | X | X | X | |||||
| ASTM A511 | X | X | ||||||
| ASTM A789 | X | X | X | X |
ASTM Mechanical Properties
| Grade | Tensile Strength Min(Mpa) | Yeild Point Min(Mpa) | EL. Min(%) | Rockwell Max |
| TP 304 | 515 | 205 | 35 | 90 |
| TP 304H | 550 | 240 | 35 | 90 |
| TP 304L | 485 | 170 | 35 | 90 |
| TP 309S | 515 | 205 | 35 | 90 |
| TP 310S | 515 | 205 | 35 | 90 |
| TP 316 | 515 | 205 | 35 | 90 |
| TP 316L | 485 | 170 | 35 | 90 |
| TP 316Ti | 515 | 205 | 35 | 90 |
| TP 317 | 515 | 205 | 35 | 90 |
| TP 321 | 515 | 205 | 35 | 90 |
| TP 321H | 515 | 205 | 35 | 90 |
| TP 347 | 515 | 205 | 35 | 90 |
| TP 347H | 515 | 205 | 35 | 90 |
FAQ
Q: How long is your delivery time?
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company,Seller
Year Established:
1998
Total Annual:
100000-100000000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ... TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ...
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