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[China]
Trade Verify
Address: Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
Contact name:Richard SHEN
TORICH INTERNATIONAL LIMITED |
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Verified Suppliers
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Product Name:TORICH GB/T13296 304/316 Seamless Stainless Steel Tubes for Boiler and Heat Exchanger
Standard:GB/T13296
Size Range: OD: 6-159mm WT: 1-14mm Length: 3-12mm or according to customers' actual application and production.
Application:for Boiler and Heat Exchanger
Steel Grade:Tp304/316/317/321/347/904/32750/32760
Technology:Hot rolled,cold drawn,cold rolled
Characteristic:
Good concentricity
Good surface quality
Good OD and ID tolerance
High Precision
Stable quality
Smooth Roughness
1 Permissible deviation of outside diameter and wall thickness
| Classification | Nominal size | Allowable deviation | |
| W-H | OD | ≤140 | ±1.25%D |
| ＞140 | ±1%D | ||
| S | ≤3 | -40%S | |
| ＞3~4 | -35%S | ||
| ＞4~5 | -33%S | ||
| ＞5 | -28%S | ||
| W-C | OD | 6~30 | +0.15 -0.20 |
| ＞30~50 | ±0.30 | ||
| ＞50 | ±0.75%D | ||
| S | D≤38 | +20%S | |
| D＞38 | -22%S | ||
2 Steel grade and chemical composition
| Number | Steel grade | Chemical Composition % | ||||||||
| C | Si | Mn | P | S | Ni | Cr | Mo | Ti | ||
| 1 | 0Cr18Ni9 | ≤0.07 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.030 | 8.00~ 1.00 | 17.00~ 19.00 | — | — |
| 2 | 1Cr18Ni9 | ≤0.15 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.030 | 8.00~ 10.50 | 17.00~ 19.00 | — | — |
| 3 | 1Cr19Ni9 | 0.04~0.10 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.030 | 8.00~ 12.00 | 18.00~ 20.00 | — | — |
| 4 | 00Cr19Ni10 | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.030 | 8.00~ 12.00 | 18.00~ 20.00 | — | — |
| 5 | 0Cr18Ni10Ti | ≤0.08 | ≤1.00 | ≤3.00 | ≤0.035 | ≤0.030 | 9.00~ 12.00 | 17.00~ 19.00 | — | ≥5C |
| 6 | 1Cr18Ni11Ti | 0.04~0.10 | ≤0.75 | ≤2.00 | ≤0.030 | ≤0.030 | 9.00~ 13.00 | 18.00~ 20.00 | — | 4Xc~ 0.60 |
| 7 | 0Cr18Ni11Nb | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.030 | 9.00~ 13.00 | 17.00~ 20.00 | — | — |
| 8 | 1Cr19Ni11Nb | 0.04~0.10 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.030 | 9.00~ 13.00 | 17.00~ 20.00 | — | — |
| 9 | 0Cr17Ni12Mo2 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.030 | 11.00~ 14.00 | 18.00~ 20.00 | 2.00~ 3.00 | — |
| 10 | 1Cr17Ni12Mo2 | 0.04~0.10 | ≤0.75 | ≤2.00 | ≤0.030 | ≤0.030 | 11.0~ 14.00 | 16.00~ 20.00 | 2.00~ 3.00 | — |
3 Recommended heat-treatment system and mechanical property
Number
| Steel Grade | Recommended heat-treatment system | Mechanical property | |||
Tensile Strength Rm MPa | Required Tensile Strength of Plastics Rp0.2/ MPa | Elongation A/ % | Density ρ/(kg/cm³) | |||
| No less than | ||||||
| 1 | 0Cr18Ni9 | 1010℃~1150℃ | 520 | 205 | 35 | 7.93 |
| 2 | 1Cr18Ni9 | 1010℃~1150℃ | 520 | 205 | 35 | 7.90 |
| 3 | 1Cr19Ni9 | 1010℃~1150℃ | 520 | 205 | 35 | 7.93 |
| 4 | 00Cr19Ni10 | 1010℃~1150℃ | 480 | 175 | 35 | 7.93 |
| 5 | 0Cr18Ni10Ti | 920℃ ~1150℃ | 520 | 205 | 35 | 7.95 |
| 6 | 1Cr18Ni11Ti | Hot rolled≥1095℃ Cold rolled≥1050℃ | 520 | 205 | 35 | 7.93 |
| 7 | 0Cr18Ni11Nb | 980℃ ~1150℃ | 520 | 205 | 35 | 7.98 |
| 8 | 1Cr19Ni11Nb | Hot rolled≥1095℃ Cold rolled≥1050℃ | 520 | 205 | 35 | 8.00 |
| 9 | 0Cr17Ni12Mo2 | 1010℃~1150℃ | 520 | 205 | 35 | 7.98 |
| 10 | 1Cr17Ni12Mo2 | ≥1040℃ | 520 | 205 | 35 | 7.89 |
Table 4 Hardness
| Organization type | Steel grade | Hardness | ||
| HBW | HRB | HV | ||
| Austenitic | 00Cr18Ni10,0Cr19Ni9N,00Cr17Ni13Mo2,0Cr17Ni12Mo2N | ≤217 | ≤95 | ≤220 |
| 0Cr18Ni13Si4 | ≤207 | ≤95 | ≤218 | |
| Others | ≤187 | 90 | 200 | |
| Ferrite | 1Cr17 | ≤183 | — | — |
| 00Cr27Mo | ≤219 | — | — | |
A.1High temperature provides non-proportional extension strength unit MPa N/ ㎜²
| Steel grade | Temperature℃ | ||||||||||
| 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 550 | 600 | |
| 1Cr18Ni9 | 171 | 155 | 144 | 136 | 128 | 124 | 119 | 116 | 111 | 106 | — |
| 1Cr19Ni11Nb | 239 | 227 | 216 | 207 | 200 | 195 | 191 | 190 | 189 | 188 | — |
B.2 100 000 h Durable intensity recommended data unit MPa N/ ㎜²
| Steel grade | 100 000 h Durable intensity | ||||||||||
| Test temperature/℃ | |||||||||||
| 600 | 610 | 620 | 630 | 640 | 650 | 660 | 670 | 680 | 690 | 700 | |
| 1Cr18Ni9 | 95 | 88 | 81 | 74 | 68 | 63 | 57 | 52 | 48 | 43 | 40 |
| 1Cr19Ni11Nb | 132 | 121 | 110 | 100 | 91 | 82 | 74 | 66 | 60 | 54 | 48 |
