GB/T 31940 Stainless Steel Tube Bi-Metal Composite Corrosion Resistance For Fluid Transportation
Contact Person : Richard SHEN
Phone Number : +86-13736164628
WhatsApp : +8613736164628
| Minimum Order Quantity : | 1Ton | Price : | negotiable |
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| Packaging Details : | Packing in wooden box，hexagonal bundles or other seaworthy ways. | Delivery Time : | 45 days |
| Payment Terms : | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability : | 20000 Ton/Year |
| Place of Origin: | Zhejiang China | Brand Name: | TORICH |
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| Certification: | ISO 9001 ISO 14001 TS 16949 | Model Number: | GB/T 13296 |
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Detail Information |
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| Product Name: | Seamless Stainless Steel Tubes For Boiler And Heat Exchanger GB/T 13296 | Material: | 302 |
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| Surface: | Polishing | Application: | For Boiler And Heat Exchanger |
| Shape: | Round | OD: | 6-159mm |
| WT: | 1-14mm | Length: | 3-12m |
| High Light: | stainless steel round tube,stainless tube steel |
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Product Description
Seamless Stainless Steel Tubes for Boiler and Heat Exchanger GB/T 13296
Spec:
Material:302
Size Range:OD:6-159mm
WT:1-14mm
General Length:3-12m
Tolerance:
According to the following tables or customers’ request.
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 | ||
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 |
— |
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 |
High 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 | — |
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 |
Processing:W-H,W-C
Technical Delivery Conditions:Heat treatment and pickling
Widely used in the field of:Boiler and heat exchanger
Product Images:
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| TORICH INTERNATIONAL LIMITED |
| Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China |
| 86-574-88086983 |
| sales@steel-tubes.com |