| After-sales Service: | Supplied |
|---|---|
| Warranty: | Supplied |
| Type: | Seamless |
| Technique: | Cold Drawn |
| Material: | Stainless Steel |
| Surface Treatment: | Polished |
| Customization: |
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Suppliers with verified business licenses
Audited Supplier | Name | Stainless Steel Seamless Pipe ASTM A312 TP 304/316L. |
| Standard | ASTM, GB, JIS, DIN, EN, AISI |
| Material Grade | TP304 TP304L TP316 TP316L TP347 TP347H TP321 TP321H TP310 TP310S |
| TP410 TP410S TP403 | |
| S31803/S32205 S32750 S32760 | |
| Outer Diameter | Seamless Pipe: 12mm-813mm |
| Thickness | Seamless Pipe: 0.5mm - 60mm |
| Length | 5.8,12m or as customers' request |
| Tolerance | According to the Standard |
| Surface | 180G, 320G, 400G Satin / Hairline |
| 400G, 500G, 600G, 800G or Mirror finish | |
| Test | UT, ET |
| Delivery Time | 30-60 Days, Depends on quantity |
| Material Grade: | TP321, TP321H , 1.4541, 08X18H10T , 12X18H10 | Standard: | ASTM A312, ASME SA312, GOST 9941, JIS G3459 , EN10216-5 |
|---|---|---|---|
| Certificate: | ABS, DNV-GL , BV, LR , KR, CCS, PED, TUV, ISO9001, AD2000 | DNT: | ET,UT,PT,HT |
| Third Party Inspection: | BV,SGS,IBR, IEI, MOODY , ... | ||
| High Light: |
seamless stainless steel tube,seamless boiler tubes |
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Stainless Steel Seamless Pipe, ASTM A312 / ASME SA312 TP321H 100% ET / UT /HT
SIZE RANGE :
| STEEL TYPES | SIZE RANGE |
| Stainless steel seamless pipe&tube | OD: 6-609.6mm WT: 0.6-50mm |
MAIN STEEL TYPE AND GRADE :
| PRODUCTS | TYPICAL STEEL GRADE |
| Austenitic |
TP304,TP304L,TP304H,TP316,TP316L,TP316H,TP316Ti TP321,TP321H,TP347H,904L,TP310H,TP310S,TP317,TP317L |
| Duplex / Super Duplex | S31803, S32205, S32750, S32760, S31500, S32304, S31254 |
| Nickel Alloy |
Incoloy800, Incoloy800H, Incoloy800HT, Incoloy825, Incoloy926 Inconel 600, Inconel 601, Inconel 625, Inconel 690, Inconel 718 Monel 400, K500, Hastelloy C276 , G-3. Nickel 200 , UNS NO8028 , UNS NO8535, UNS NO8135, UNS NO6985, UNS NO6950 |
MAIN PRODUCTION STANDARDS:
| STANDARD TYPE | STANDARD |
| EN | EN10216-5 , EN10216-2 |
| DIN | DIN 17456 , DIN 17458 |
| ASTM | ASTM A312, A213, A269, A511, A789, A790 ETC |
| GOST | GOST 9941 , GOST 5632 |
| JIS | JIS G3459 , JIS G3463 |
| GB | GB/T14975,GB/T14975, GB13296, GB5310, GB9948 |
TP321 Stainless Steel Composition Chart
| Ni | 9 - 12 |
| Cr | 17 - 19 |
| C | 0.08 max |
| N | 0.10 max |
| Fe | Balance |
| Mn | 2 max |
| Si | 0.75 max |
| S | 0.03 max |
| P | 0.045 max |
| Ti | 5xC min 0.60% max |
Mechanical Specification of AISI 321 Pipe
| Density | 8.0 g/cm3 |
| Melting Point | 1454 °C (2650 °F) |
| Tensile Strength | Psi - 75000 , MPa - 515 |
| Yield Strength (0.2%Offset) | Psi - 30000 , MPa - 205 |
| Elongation | 35 % |
TP321H Composition Standard
| SS | 321H |
| Ni | 09 - 12 |
| S | 00.03 max |
| N | 00.10 |
| Cr | 17 - 19 |
| Si | 00.75 max |
| Mn | 2 max |
| C | 00.04 - 0.08 |
| P | 00.045 max |
| TI | 00.70 max |
ASTM A312 TP321H Mechanical Properties Table
| SS | TP 321H |
| Tensile Strength minimum (MPa) | 515 |
| Yield Strength 0.2% Proof minimum (MPa) | 205 |
| Elongation minimum (% in 50mm) | 40 |
| Hardness | |
| Rockwell B (HR B) maximum | 95 |
| Brinell (HB) maximum | 217 |
Stainless Steel Seamless Pipe/ Tube:
1.A312: Each pipe shall be subjected to the nondestructive electric test or the hydrostatic test, the pipe of test to be used shall be at the option of the mfg, unless otherwise specified in the PO.
2. The Pipe lengths : Unless otherwise agreed upon, all size from NPS 1/8" TO AND INCLUDING nps 8 are available in a length up to 24ft with the permitted range of 15 to 24 ft. Short length are acceptable and the number and min, length shall be agreed upon between mfg and purchaser.
3. The finished pipe shall be reasonably straight and shall have workmanlike finish, Removal of imperfections by grinding is permitted, provided the W.T are not decreased to the less than the permitted in Section 9 of Specification A312
4. Butt Weld End: According to ANSI B 16.25
5. Pipe Marking: Specified in A312, include "Logo(YHSS)+Standard+SIZE+Heat No.+Lot No.+H.T/E.T/U.T"
6. Packing: Each Pipe end is protected by Plastic cap. Then packed by Anti-rust steel strip, The outside of the bundle is plastic woven bag, or Plastic film.
7. Packing Mark: SIZE + STEEL GRADE+ QTY OF PIECE/WEIGHT/METRE.
8.MTC: BWSS Official Original MTC paper will be supplied for each order.
Quality Control in our group :
| Corrosion Test | Conducted only when specially requested by the client |
| Chemical Analysis | Test done as per required quality standards |
| Destructive / Mechanical Testing | Tensile | Hardness | Flattening | Flare | Flange |
| Reverse-bend and Re. flat tests | Carried out in full compliance with relevant standards & ASTM A-312 and A-312 norms, which ensures trouble-free expansion, welding & use at customers end |
| Eddy Current Testing | Done to detect homogeneities in subsurface by using Digital Flaw-mark Testing System |
| Hydrostatic Testing | 100% Hydrostatic Testing carried out according to ASTM-A 312 norms for checking tube leakage, and biggest pressure we can support 20Mpa/7s . |
| Air Under Pressure Test | To check any evidence of air leakage |
| Visual Inspection | After passivation, every single length of tubes & pipes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections |
Application:
Suppliers with verified business licenses
Audited Supplier 
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