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 : | 0.5 Ton | Price : | negotiable |
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| Packaging Details : | Packing in wooden, hexagonal box or other seaworthy ways | Delivery Time : | 15-30 days |
| Payment Terms : | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability : | 10000 Ton/Year |
| Place of Origin: | Zhejiang,China | Brand Name: | TORICH |
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| Certification: | ISO 9001 ISO 14001 TS 16949 | Model Number: | ASTM A688 |
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Detail Information |
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| Product Name:: | TORICH ASTM A688 TP304/304L/304LN , TP316/316L Welded Austenitic Stainless Steel Tube For Tubular Feed Water Heaters | Keyword:: | Welded Stainless Steel Tubes |
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| Material:: | TP304/304L/304LN , TP316/316L | Shape:: | Round |
| Usage:: | Feed Warter Heater Tubes | OD:: | 4-1200mm |
| WT:: | 0.3-200m | Length:: | 1-12m |
| High Light: | stainless steel round tube,large diameter stainless steel tube |
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Product Description
ASTM A688 TP304/304L/304LN , TP316/316L/316LN Welded Austenitic Stainless Steel Feed warter Heater Tubes
Size range:
O.D.: 4.0-230mm W.T.:1-30mm L: according to customer requirement
Material and Manufacture:
Tubes are made from Flat-rolled steel by automatic welding process.
Subsequent to welding and prior to final heat treatment, the tubes are cold drawn or cold rolled
The tubes are ready for U-bending after annealed, according to customer's drawing and design.
Surface Condition:
The tubes are pickled in nitric and hydrofluoric acids.
Bright annealing.
Mechanical Requirement
| Grade: | TP304 | TP304L | TP304LN | TP316 | TP316L | TP316LN | TP316LN | TPXM-29 | TP304N |
| UNS | S30400 | S30403 | S30453 | S31600 | S31603 | S31653 | S31653 | S24000 | S30451 |
| C, max | 0.08 | 0.035 | 0.035 | 0.080 | 0.035 | 0.035 | 0.035 | 0.08 | 0.080 |
| Mn, max | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 11.5-14.5 | 2.00 |
| P, max | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.060 | 0.045 |
| S, max | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 |
| Si, max | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Ni | 18.0-20.0 | 18.0-20.0 | 18.0-20.0 | 16.0-18.0 | 16.0-18.0 | 16.0-18.0 | 16.0-18.0 | 17.0-19.0 | 18.0-20.0 |
| Cr | 8.0-11.0 | 8.0-13.0 | 8.0-12.0 | 11.0-14.0 | 10.0-14.0 | 11.0-14.0 | 11.0-14.0 | 2.3-3.7 | 8.0-18.0 |
| Mo | … | … | … | 2.00-3.00 | 2.00-3.00 | 2.00-3.00 | 2.00-3.00 | … | … |
| Nitrogen | … | … | … | … | … | … | … | … | … |
| Copper | … | … | … | … | … |
| Grade: | TP316N | … | … | … | … |
| UNS | S31651 | N08367 | N08926 | S31254 | S32654 |
| C, max | 0.070 | 0.030 | 0.020 | 0.020 | 0.020 |
| Mn, max | 2.00 | 2.00 | 2.00 | 1.00 | 2.0-4.0 |
| P, max | 0.045 | 0.040 | 0.030 | 0.030 | 0.030 |
| S, max | 0.030 | 0.030 | 0.010 | 0.100 | 0.005 |
| Si, max | 4.8-6.0 | 1.00 | 0.50 | 0.80 | 0.50 |
| Ni | 9.58.0 | 20.0-22.0 | 24.0-26.0 | 19.5-20.5 | 21.0-23.0 |
| Cr | 19.0-22.0 | 23.5-25.5 | 19.0-21.0 | 17.5-18.5 | 24.0-25.0 |
| Mo | 0.30-1.50 | 6.0-7.0 | 6.0-7.0 | 6.0-6.5 | 7.0-8.0 |
| Nitrogen | … | … | … | … | 0.45-0.55 |
| Copper | … | … | … | 0.30-0.60 |
Tensil Requirements
| Grade and UNS | Tensile strength min ksi [Mpa] |
Yield strength min ksi [Mpa] |
Elongation in 2in or 50mm min % |
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| 304, 316 S30400, S31600 |
75 [515] | 30 [205] | 35 | ||||||
| 304L, 316L S30403, S31603 |
70 [485] | 25 [175] | 35 | ||||||
| XM-29 S24000 |
100 [690] | 55 [380] | 35 | ||||||
| 304N, 316N S30451, S31651 |
80 [550] | 35 [240] | 20 | ||||||
| 304LN, 316LN S30453, S31653 |
75 [515] | 30 [205] | 35 | ||||||
| N08367 t≤0.187 | 100 [690] | 45 [310] | 30 | ||||||
| N08367 t＞0.187 | 95 [655] | 45 [310] | 30 | ||||||
| N08926 | 94 [650] | 45 [310] | 35 | ||||||
| S31254 t≤0.187 | 100 [690] | 45 [310] | 35 | ||||||
| S21254 t＞0.187 | 95 [655] | 45 [310] | 35 | ||||||
| S32654 | 120 [825] | 65 [450] | 40 | ||||||
Permissible Variations in Dimensions
| Group | Size, Outside Diameter, in(mm) |
Permissible Variations in Outside Diameter, in.[mm] |
Permissible in WT, % |
PermisibleVariations in Cut Length, |
|
| 1 | Up to 1/2(12.7), excl | ±0.005[0.13] | ±15 | 1/8[3] | 0 |
| 2 | 1/2 to 1 1/2(12.7 to 38.1 excl | ±0.005[0.13] | ±10 | 1/8[3] | 0 |
| 3 | 1 1/2 to 3 1/2(38.1 to 88.9 excl | ±0.010[0.25] | ±10 | 3/16[5] | 0 |
| 4 | 3 1/2 to 5 1/2(88.9 to 139.7 excl | ±0.015[0.38] | ±10 | 3/16[5] | 0 |
| 5 | 5 1/2 to 5 1/2(139.7 to 230.2 excl | ±0.030[0.76] | ±10 | 3/16[5] | 0 |
Reference Documents:
ASTM STANDARDS
ASTM A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
ASTM A480 / A480 M Specification for General Requirements for Flat-Rolled Stainless and Heat-
Resisting Steel Plate, Sheet and Strip,
ASTM A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys.
ASTM A1016/ A1016 M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy
Steels, and Stainless Steel Tubes.
ASTM E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
SAE J1086 Practice for Numbering Metals and Alloys (UNS)
FAQ
Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, and it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but you need to pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance , balance before shippment.
If you have another question, pls feel free to contact us
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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 |