JIS 3463 SUS304TB SUS304LTB SUS 310STB SUS316TB SUS316LTB seamless steel tubes use for boiler and heat exchanger
Material :SUS304TB SUS304LTB SUS316TB SUS316LTB SUS317TB SUS317LTB SUS310TB SUS310STB SUS321TB SUS321HTB SUS347TB
Yeild strength ≥175Mpa or ≥206Mpa
Tensile strength ≥481Mpa or ≥521Mpa
Elongation ≥27% or ≥35%
Flattening test H=1.09t/(0.09+t/D)
Flaring test 60° 12%D
Grain size JIS G051
Hydrostatic test P=2Rt/D It can be taken place by Nondestructive flaw detection
Nondestructive test : ECT
JIS G 3463 Austenitic Stainless Steel for Boiler and Heat Exchanger Tubes
Seamless steel tubes for pressure purposes
Produce method:seamless
Delivery condition: Hot finished cold finished
Steel Grade:314 316 317 347
Relevant standard :KS D 3577 ASTM A 268 A249 A271 A632 DIN 17455 BS3059 JIS G 0320 JIS G 0321 J
| STEEL GRADE AND CHEMICAL COMPOSITIONS |
| Seel Grade | Class | C | Si | Mn | P | S | Ni | Cr | Mo | etc |
| SUS 304TB | Austenitic | 0.08max | 1.00max | 2.00max | 0.040max | 0.030max | 8.00-11.00 | 18.00-20.00 | - | - |
| SUS 304HTB | 0.04-0.10 | 0.75max | 2.00max | 0.040max | 0.030max | 8.00-11.00 | 18.00-20.00 | - | - |
| SUS 304LTB | 0.030max | 1.00max | 2.00max | 0.040max | 0.030max | 9.00-13.00 | 18.00-20.00 | - | - |
| SUS310TB | 0.15max | 1.50max | 2.00max | 0.040max | 0.030max | 19.00-22.00 | 24.00-26.00 | - | - |
| SUS310STB | 0.08max | 1.50max | 2.00max | 0.040max | 0.030max | 19.00-22.00 | 24.00-26.00 | - | |
| SUS 316TB | 0.08max | 1.00max | 2.00max | 0.040max | 0.030max | 10.00-14.00 | 16.00-18.00 | 2.00-3.00 | - |
| SUS 316HTB | 0.40-0.10 | 0.75max | 2.00max | 0.030max | 0.030max | 11.00-14.00 | 16.00-18.00 | 2.00-3.00 | - |
| SUS316LTB | 0.030max | 1.00max | 2.00max | 0.040max | 0.030max | 12.00-16.00 | 16.00-18.00 | 2.00-3.00 | - |
| SUS316TiTB | 0.080max | 1.00max | 2.00max | 0.040max | 0.030max | 10.00-14.00 | 16.00-18.00 | 2.00-3.00 | Ti:5*C %max |
| SUS317TB | 0.080max | 1.00max | 2.00max | 0.040max | 0.030max | 11.00-15.00 | 18.00-20.00 | 3.00-4.00 | - |
| SUS317LTB | 0.030max | 1.00max | 2.00max | 0.040max | 0.030max | 11.00-15.00 | 18.00-20.00 | 3.00-4.00 | - |
| SUS347TB | 0.080max | 1.00max | 2.00max | 0.040max | 0.030max | 9.00-13.00 | 17.00-19.00 | - | Nb:10*C %max |
| SUS347HTB | 0.40-0.10 | 1.00max | 2.00max | 0.030max | 0.030max | 9.00-13.00 | 17.00-20.00 | - | Nb:8*C %-1.00 |
| STEEL GRADE AND MECHANICAL PROPERTIES |
| Seel Grade | Tensile trength
Mpa min | Proof strees
Mpa min | Elongation % |
| OD＜10mm | OD≥10mm OD＜20mm | OD ≥20mm |
| No.11 test piece | No.11 test piece | No.11 test piece
No.12 test piece |
| SUS 304TB | 520 | 205 | 27 | 30 | 35 |
| SUS 304HTB | 520 | 205 | 27 | 30 | 35 |
| SUS 304LTB | 480 | 175 | 27 | 30 | 35 |
| SUS310TB | 520 | 205 | 27 | 30 | 35 |
| SUS310STB | 520 | 205 | 27 | 30 | 35 |
| SUS 316TB | 520 | 205 | 27 | 30 | 35 |
| SUS 316HTB | 520 | 205 | 27 | 30 | 35 |
| SUS316LTB | 480 | 175 | 27 | 30 | 35 |
| SUS316TiTB | 520 | 205 | 27 | 30 | 35 |
| SUS317TB | 520 | 205 | 27 | 30 | 35 |
| SUS317LTB | 480 | 175 | 27 | 30 | 35 |
| SUS347TB | 520 | 205 | 27 | 30 | 35 |
| SUS347HTB | 520 | 205 | 27 | 30 | 35 |
| OD division mm | Tolerance on OD unit:mm |
| Hot finished seamless tube | Cold finished seamless tube | Automatic arc welded tube Laser welded tube and electric resistance welded tube |
| Under 40 | +0.4 -0.8 | ±0.25 | ±0.25 |
| 40 or over to and excl. 50 |
| 50 or over to and excl. 60 |
| 60 or over to and excl. 80 | ±0.30 | ±0.30 |
| 80 or over to and excl. 100 | ±0.40 | ±0.40 |
| 100 or over to and excl. 120 | +0.4 -1.2 | +0.40 -0.60 | +0.40 -0.60 |
| 120 or over to and excl. 160 | +0.4 -0.80 | +0.40 -0.80 |
| 160 or over to and excl. 200 | +0.4 -1.8 | +0.4 -1.2 | +0.4 -1.20 |
| 200 or over | +0.4 -2.4 | +0.40 -1.60 | +0.40 -1.60 |
Remarks:
1. The tolerance on OD of ferritic cold finished seamless tube,automatic arc welded tube, and electric resistance welded tube shall be ±0.10mm for OD of under 25mm,±0.15mm for OD of 25mm or over to and excluding 40mm, and ±0.20mm for OD of 40mm or over to and excluding 50mm
2. The purchaser may specify the tolerances on the OD of cold finished seamless tube,automatic arc welded tube,laser welded tube,and electric resistance welded tube of under 40mm in OD as ±0.20mm
| Tolerances on wall thickness | Division of method of manufacture | Hot finished seamless steeltube | Cold finished seamless steeltube | Electric resistance welded steeltube |
| Division of wall thickness | Division of outside diameter(mm) | under 100 | 100 or over | under 40 | 40 or over | under 40 | 40 or over |
| Tolerances on wall thickness % | under 2 | - | - | +0.4mm
0 | +22
0 | +0.4mm
0 | +22
0 |
| 2 or over to and excl. 2.4 | +40
0 | - | +20
0 | +20
0 |
| 2.4 or over to and excl. 3.8 | +35
0 | +35
0 |
| 3.8 or over to and excl. 4.6 | +33
0 | +33
0 |
| 4.6 or over | +28
0 | +28
0 |
| Tolerances on wall thickness | - | within 22.8 of wall thickness | - | - |
| Division | Length Tolerance |
| OD below 50 | below 7m | +7mm 0 |
| above 7m | Add 3mm to the plus side tolerance given above for an crease of every 3mm or its fraction in length,however the maximum value shall be 15mm |
| OD above 50 | below 7m | +10mm 0 |
| above 7m | Add 3mm to the plus side tolerance given above for an crease of every 3mm or its fraction in length,however the maximum value shall be 15mm |
Hardness:HRB 90max
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