Description
304L Stainless Steel Pipe BRIEF INTRODUCTION
304L stainless steel pipe is a hollow long round steel, mainly is widely used in petroleum, chemical, medical, food, light industry, machinery, instrument and other industrial pipeline and mechanical structure parts, etc.
In addition, in bending and torsion strength, the weight is lighter, so it is also widely used to make mechanical parts and engineering structures. It is also used to produce all kinds of conventional weapons, guns and shells.
What Is The Stainless Steel 304L Pipe?
304L stainless steel pipe is an austenitic alloy with 18-20% Cr, 8-12% Ni, and ≤0.03% carbon, offering enhanced weldability and resistance to intergranular corrosion compared to 304 grade. It meets ASTM standards (e.g., A312/A358) and is widely used in heat exchangers, boilers, and welded components requiring post-fabrication corrosion resistance
304L stainless steel pipe with 18Cr-8Ni- low carbon is a low-C 304 steel. Under normal conditions, its corrosion resistance is similar to that of 304 steel, but after welding or stress relief, its resistance to intergranular corrosion is excellent; In the case of heat treatment, it can also maintain good corrosion resistance, and the use temperature is -196℃~800℃.
Additionally, It is applied to outdoor machines in the chemical, coal, and petroleum industries that require high grain boundary corrosion resistance, heat-resistant parts for building materials, and parts with difficult heat treatment.
304L Stainless Steel Pipe is a variant of 304 stainless steel pipe with lower carbon content and is used where welding is required. The lower carbon content minimizes the precipitation of carbides in the heat-affected zone near the weld, and the precipitation of carbides may cause stainless steel to produce intergranular corrosion (welding erosion) in certain environments.
Therefore, The forging performance of 304L stainless steel is poor and it is still difficult to deform. Due to the work hardening phenomenon, the deformation of the core rod cannot be too large and the heat loss is large. Therefore, it must be molded under multiple fires. If the high temperature and heat preservation stage is not handled well, it will cause roughness. crystal.
KCM SPECIAL STEEL, ASTM A312/213 TP304L STAINLESS STEEL PIPE 304L RELATED PRODUCTS:
1. ASTM A312/213 TP 304L 304L Stainless Steel Pipe SEAMLESS
2. ASTM A312/213 TP 304L 304L Stainless Steel PipeWELDED
3. TP 304L 304L Stainless Steel Pipe FITTINGS
4. TP 304L 304L Stainless Steel Pipe FLANGES
5. TP 304L STAINLESS STEEL VALVES
ONE>ASTM A312/213 TP 304L 304L Stainless Steel Pipe SEAMLESS Besides
1.SPECIFICATIONS:
| Standard: | AISI, ASTM, DIN,EN etc | Place of Origin: | Zhejiang, China | Brand Name: | KCM SPECIAL STEEL |
| Model Number: | Seamless Pipes/Tubes | Type: | TP304L Seamless pipes/Tubes | Steel Grade: | TP304/304L,SS304L,1.4307 |
| Application: | Heat exchanger and condenser, etc | Surface: | as customer’s required | Meterial: | austenitic stainless steel |
| Thickness: | SCH5~SCH160 | Outer Diameter: | 1/8″-48″ | Surface: | pickled&annealed |
| Shape: | Round,Square,rectangular | Technique: | Cold finish | Length: | 16m max(fixed or random) |
| Payment terms: | T/T | Sample: | free | Delivery condition: | Pickled&annealed/polished |
| MOQ: | 500kgs | Packing: | as pe your request | inspection: | 100% |
2.Further ASTM A312/213 TP304L Stainless Steel Pipe SEAMLESS PACKING AND DELIVERY:
| Packaging Detail: | wooden cases or plastic by bundles as customer’s required |
| Delivery Detail: | 10- 30 days
|
3.Further More ASTM A312/213 TP304L Stainless Steel Pipe 304L SEAMLESS SURFACE:
ASTM A312/A213 TP304L 304L STAINLESS STEEL SEAMLESS PIPE SUPPLIERS,MANUFACTURER,STOCKIST,CONTACT US FOR FACTASTIC PRICE AND GOOD QUALITY 304L STAINLESS STEEL PIPE.
4.Accordingly ASTM A312 / 213 TP304L Stainless Steel Pipe 304L SEAMLESS PRODUCTION PROCESS:
ASTM A312/A213 TP304L/304L Stainless Steel Pipe Supplier and Manufacturer in CHINA, contact us to get HIGH QUALITY and LOW PRICE Stainless Steel 304L Pipe
5. According ASTM A312/213 TP 304L 304L Stainless Steel Pipe SEAMLESS APPLICATIONS:
Ship Builders,
Automotive Industry,
Power Generation,
Food Industry,
Paper Industry,
Pharmaceutical Industry,
Chemical Industry,
Oil and Gas Industry,
Heat Exchanger
Chemical process vessels,
piping and heat exchangers
Pulp mill digesters,
bleach washers,
chip pre-steaming vessels
Food processing equipment
Oil field piping and heat exchangers
Flue gas desulfurization equipment otherwise
6. Therefore ASTM A312/213 TP304L Stainless Steel Pipe 304L SEAMLESS AVAILABLE SIZES IN STOCK:
| Dimensions for ASME/ANSI Standards | Unit:mm | ||||||||||||
| B16.9 B16.28 B36.10 | |||||||||||||
| Nominal pipe Size(NPS) | Outside Diameter | Nominal Wall Thickness | |||||||||||
| Sch5s | SCH10S | Sch20 | Sch30 | Sch40 | STD | Sch80 | XS | Sch160 | XXS | ||||
| 8 | 1/4 | 13.7 | 0.54 | – | 1.65 | – | 1.85 | 2.24 | 2.24 | 3.02 | 3.02 | – | – |
| 10 | 3/8 | 17.1 | 0.675 | – | 1.65 | – | 1.85 | 2.31 | 2.31 | 3.20 | 3.20 | – | – |
| 15 | 1/2 | 21.3 | 0.84 | 1.65 | 2.11 | – | 2.41 | 2.77 | 2.77 | 3.73 | 3.73 | 4.78 | 7.47 |
| 20 | 3/4 | 26.7 | 1.05 | 1.65 | 2.11 | – | 2.41 | 2.87 | 2.87 | 3.91 | 3.91 | 5.56 | 7.82 |
| 25 | 1 | 33.4 | 1.32 | 1.65 | 2.77 | – | 2.90 | 3.38 | 3.38 | 4.55 | 4.55 | 6.35 | 9.09 |
| 32 | 1.1/4 | 42.2 | 1.66 | 1.65 | 2.77 | – | 2.97 | 3.56 | 3.56 | 4.85 | 4.85 | 6.35 | 9.70 |
| 40 | 1.1/2 | 48.3 | 1.90 | 1.65 | 2.77 | – | 3.18 | 3.68 | 3.68 | 5.08 | 5.08 | 7.14 | 10.15 |
| 50 | 2 | 60.3 | 2.38 | 1.65 | 2.77 | – | 3.18 | 3.91 | 3.91 | 5.54 | 5.54 | 8.74 | 11.07 |
| 65 | 2.1/2 | 73.0 | 2.88 | 2.11 | 3.05 | – | 4.78 | 5.16 | 5.16 | 7.01 | 7.01 | 9.53 | 14.02 |
| 80 | 3 | 88.9 | 3.50 | 2.11 | 3.05 | – | 4.78 | 5.49 | 5.49 | 7.62 | 7.62 | 11.13 | 15.24 |
| 90 | 3.1/2 | 101.6 | 4.00 | 2.11 | 3.05 | – | 4.78 | 5.74 | 5.74 | 8.08 | 8.08 | – | – |
| 100 | 4 | 114.3 | 4.50 | 2.11 | 3.05 | – | 4.78 | 6.02 | 6.02 | 8.56 | 8.56 | 13.49 | 17.12 |
| 125 | 5 | 141.3 | 5.56 | 2.77 | 3.40 | – | – | 6.55 | 6.55 | 9.53 | 9.53 | 15.88 | 19.05 |
| 150 | 6 | 168.3 | 6.62 | 2.77 | 3.40 | – | – | 7.11 | 7.11 | 10.97 | 10.97 | 18.26 | 21.96 |
| 200 | 8 | 219.1 | 8.62 | 2.77 | 3.76 | 6.35 | 7.04 | 8.18 | 8.18 | 12.70 | 12.70 | 23.01 | 22.23 |
| 250 | 10 | 273.0 | 10.75 | 3.40 | 4.19 | 6.35 | 7.80 | 9.27 | 9.27 | 15.09 | 12.70 | 28.58 | 25.40 |
| 300 | 12 | 323.8 | 12.75 | 3.96 | 4.57 | 6.35 | 8.38 | 10.13 | 9.53 | 17.48 | 12.70 | 33.32 | 25.40 |
| 350 | 14 | 355.6 | 14 | 3.96 | 4.78 | 7.92 | 9.53 | 11.13 | 9.53 | 19.05 | 12.70 | 35.71 | – |
| 400 | 16 | 406.4 | 16 | 4.19 | 4.78 | 7.92 | 9.53 | 12.70 | 9.53 | 21.44 | 12.70 | 40.49 | – |
| 450 | 18 | 457 | 18 | 4.19 | 4.78 | 7.92 | 11.13 | 14.27 | 9.53 | 23.83 | 12.70 | 45.24 | – |
| 500 | 10 | 508 | 20 | 4.78 | 5.54 | 9.53 | 12.70 | 15.09 | 9.53 | 26.19 | 12.70 | 50.01 | – |
| 550 | 22 | 559 | 22 | 4.78 | 5.54 | 9.53 | 12.70 | – | 9.53 | 28.58 | 12.70 | 53.98 | – |
| 600 | 24 | 610 | 24 | 5.54 | 6.35 | 9.53 | 14.27 | 17.48 | 9.53 | 30.96 | 12.70 | 59.54 | – |
| 650 | *26 | 660 | 26 | – | – | – | – | – | 9.53 | – | 12.70 | – | – |
| 700 | *28 | 711 | 28 | – | – | – | – | – | 9.53 | – | 12.70 | – | – |
| 750 | *30 | 762 | 30 | – | – | – | – | – | 9.53 | – | 12.70 | – | – |
| 800 | *32 | 813 | 32 | – | – | – | – | – | 9.53 | – | 12.70 | – | – |
Size Chart Of Aisi304L Stainless Steel Pipe Accordingly ASME B36.10 OR ASME B36.19M
WT= Wall Thickness, OD= Outside Diameter, ID= Inside Diameter
| 304L SS Pipes OD mm | Pipes WT mm | in. | Sch | Kg/m |
|---|---|---|---|---|
| 13.72 | 1.65 | 1/4 | 10S | 0.50 |
| 13.72 | 2.24 | 1/4 | 40S | 0.64 |
| 13.72 | 3.02 | 1/4 | 80S | 0.81 |
| 17.15 | 1.65 | 3/8 | 10S | 0.64 |
| 17.15 | 2.31 | 3/8 | 40S | 0.86 |
| 17.15 | 3.20 | 3/8 | 80S | 1.12 |
| 21.34 | 2.11 | 1/2 | 10S | 1.02 |
| 21.34 | 2.77 | 1/2 | 40S | 1.29 |
| 21.34 | 3.73 | 1/2 | 80S | 1.65 |
| 26.67 | 2.11 | 3/4 | 10S | 1.30 |
| 26.67 | 2.87 | 3/4 | 40S | 1.71 |
| 26.67 | 3.91 | 3/4 | 80S | 2.23 |
| 33.40 | 2.77 | 1 | 10S | 2.13 |
| 33.40 | 3.38 | 1 | 40S | 2.54 |
| 33.40 | 4.55 | 1 | 80S | 3.29 |
| 33.40 | 6.352) | 1 | 160 | 4.30 |
| 42.16 | 2.77 | 1¼ | 10S | 2.73 |
| 42.16 | 3.56 | 1¼ | 40S | 3.44 |
| 42.16 | 4.85 | 1¼ | 80S | 4.53 |
| 42.16 | 6.352) | 1¼ | 160 | 5.69 |
| 48.26 | 2.77 | 1½ | 10S | 3.16 |
| 48.26 | 3.68 | 1½ | 40S | 4.11 |
| 48.26 | 5.08 | 1½ | 80S | 5.49 |
| 60.33 | 2.77 | 2 | 10S | 3.99 |
| 60.33 | 3.91 | 2 | 40S | 5.52 |
| 60.33 | 5.54 | 2 | 80S | 7.60 |
| 60.33 | 8.742) | 2 | 160 | 11.29 |
| 73.03 | 3.05 | 2½ | 10S | 5.35 |
| 73.03 | 5.16 | 2½ | 40S | 8.77 |
| 73.03 | 7.01 | 2½ | 80S | 11.59 |
| 88.90 | 3.05 | 3 | 10S | 6.56 |
| 88.90 | 5.49 | 3 | 40S | 11.47 |
| 88.90 | 7.62 | 3 | 80S | 15.51 |
| 88.90 | 11.132) | 3 | 160 | 21.67 |
| 101.60 | 3.05 | 3½ | 10S | 7.53 |
| 101.60 | 5.74 | 3½ | 40S | 13.78 |
| 101.60 | 8.08 | 3½ | 80S | 18.92 |
| 114.30 | 3.05 | 4 | 10S | 8.50 |
| 114.30 | 6.02 | 4 | 40S | 16.32 |
| 114.30 | 8.56 | 4 | 80S | 22.67 |
| 114.30 | 13.492) | 4 | 160 | 34.05 |
| 141.30 | 6.55 | 5 | 40S | 22.10 |
| 141.30 | 9.53 | 5 | 80S | 31.44 |
| 141.30 | 15.882) | 5 | 160 | 49.87 |
| 168.28 | 3.4 | 6 | 10S | 14.04 |
| 168.28 | 7.11 | 6 | 40S | 28.69 |
| 168.28 | 10.97 | 6 | 80S | 43.21 |
| 168.28 | 14.27 | 6 | 120 | 54.75 |
| 168.28 | 18.262) | 6 | 160 | 68.59 |
| 219.08 | 8.18 | 8 | 40S | 43.20 |
| 219.08 | 12.7 | 8 | 80S | 65.63 |
| 219.08 | 18.23 | 8 | 120 | 91.30 |
| 219.08 | 23.012) | 8 | 160 | 112.97 |
Additionally Sizes Of 304L Schedule 10 Stainless Steel Tube
| Wall Thickness | Stainless Steel 304L Tube Sizes ( O.D.) |
|---|---|
| .010 | 1/16″ , 1/8″ , 3/16″ |
| .020 | 1/16″ , 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ |
| .012 | 1/8″ |
| .016 | 1/8″ , 3/16″ |
| .028 | 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 3/4″ , 1″ , 1 1/2″ , 2″ |
| .035 | 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 7/16″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″ |
| .049 | 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/8″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″ |
| .065 | 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 3/4″ , 2″ , 2 1/2″ , 3″ |
| .083 | 1/4″ , 3/8″ , 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 7/8″ , 2″ , 2 1/2″ ,3″ |
| .095 | 1/2″ , 5/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ |
| .109 | 1/2″ , 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ |
| .120 | 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 2 1/4″ , 2 1/2″ , 3″ |
| .125 | 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 3″ , 3 1/4″ |
| .134 | 1″ |
| .250 | 3″ |
| .375 | 3 1/2″ |
Futher Composition Chart of 304L Stainless Steel Pipe
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 304L | min. | – | – | – | – | – | 18.0 | – | 8.0 | – |
| max. | 0.03 | 2.0 | 1.00 | 0.045 | 0.03 | 20.0 | 12.0 | – | ||
Besides SS UNS S30403 AISI304 Stainless Steel Pipe Mechanical Properties Chart
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 304L | 485 | 170 | 40 | 92 | 201 |
TWO>1.ASTM A312 TP 304L 304L Stainless Steel Welded Pipe SPECIFICATIONS:
| Standard: | AISI, ASTM, DIN,EN etc | Place of Origin: | Zhejiang, China | Brand Name: | KCM SPECIAL STEEL |
| Model Number: | Welded pipes/tubes | Type: | TP316L welded pipes/Tubes | Steel Grade: | TP304/304L,SS304L,1.4307 |
| Application: | Heat exchanger and condenser, etc | Surface: | as customer’s required | Meterial: | austenitic stainless steel |
| Thickness: | SCH5~40~80~100 | Outer Diameter: | 1/8″-48″ | Surface: | pickled&annealed |
| Shape: | Round,Square,rectangular | Technique: | Cold finish | Length: | 16m max(fixed or random) |
| Payment terms: | T/T | Sample: | free | Delivery condition: | Pickled&annealed/polished |
| MOQ: | 500kgs | Packing: | as pe your request | inspection: | 100% |
2.EVEN SO ASTM A312 TP 304L STAINLESS STEEL WELDED PIPE PACKING AND DELIVERY:PLASTIC BY BUNDLES OR WOODEN CASE OR ACC TO CUSTOMER REQUEST.
3.ASTM A312 TP 304L STAINLESS STEEL WELDED PIPE SURFACE:
304L STAINLESS STEEL PIPE SUPPLIERS,MANUFACTURER,STOCKIST,CONTACT US FOR FACTASTIC PRICE AND GOOD QUALITY STAINLESS STEEL 304L PIPE.
THREE> 304L Stainless Steel Pipe FITTINGS
- 304L Stainless Steel Pipe FITTINGS SPECIFICATIONS:
Standard: AISI,DIN,EN etc Place of Origin: Zhejiang, China Brand Name: KCM SPECIAL STEEL Model Number: pipe fittings Type: TP304L pipefittings Steel Grade: TP304/304L,SS304L,1.4307 Application: shipbuilding and condenser, etc Surface: as customer’s required Meterial: austenitic stainless steel Thickness: SCH5~SCH160 Outer Diameter: 1/8″-48″ Surface: pickled&annealed Shape: elbow,Tee,reducer,stub end,cross,sw fittings. Technique: bend finish Length: standard Payment terms: T/T Sample: free Delivery condition: Pickled&annealed/polished MOQ: 500kgs Packing: as pe your request inspection: 100% - 304L Stainless Steel Pipe FITTINGS AVAILABLE SIZES IN STOCK.(ELBOW,TEE,REDUCER,CROSS)
Dimensions for ASME/ANSI Standards Unit:mm B16.9 B16.28 B36.10 Nominal pipe Size(NPS) Outside Diameter Nominal Wall Thickness Sch5s SCH10S Sch20 Sch30 Sch40 STD Sch80 XS Sch160 XXS 8 1/4 13.7 0.54 – 1.65 – 1.85 2.24 2.24 3.02 3.02 – – 10 3/8 17.1 0.675 – 1.65 – 1.85 2.31 2.31 3.20 3.20 – – 15 1/2 21.3 0.84 1.65 2.11 – 2.41 2.77 2.77 3.73 3.73 4.78 7.47 20 3/4 26.7 1.05 1.65 2.11 – 2.41 2.87 2.87 3.91 3.91 5.56 7.82 25 1 33.4 1.32 1.65 2.77 – 2.90 3.38 3.38 4.55 4.55 6.35 9.09 32 1.1/4 42.2 1.66 1.65 2.77 – 2.97 3.56 3.56 4.85 4.85 6.35 9.70 40 1.1/2 48.3 1.90 1.65 2.77 – 3.18 3.68 3.68 5.08 5.08 7.14 10.15 50 2 60.3 2.38 1.65 2.77 – 3.18 3.91 3.91 5.54 5.54 8.74 11.07 65 2.1/2 73.0 2.88 2.11 3.05 – 4.78 5.16 5.16 7.01 7.01 9.53 14.02 80 3 88.9 3.50 2.11 3.05 – 4.78 5.49 5.49 7.62 7.62 11.13 15.24 90 3.1/2 101.6 4.00 2.11 3.05 – 4.78 5.74 5.74 8.08 8.08 – – 100 4 114.3 4.50 2.11 3.05 – 4.78 6.02 6.02 8.56 8.56 13.49 17.12 125 5 141.3 5.56 2.77 3.40 – – 6.55 6.55 9.53 9.53 15.88 19.05 150 6 168.3 6.62 2.77 3.40 – – 7.11 7.11 10.97 10.97 18.26 21.96 200 8 219.1 8.62 2.77 3.76 6.35 7.04 8.18 8.18 12.70 12.70 23.01 22.23 250 10 273.0 10.75 3.40 4.19 6.35 7.80 9.27 9.27 15.09 12.70 28.58 25.40 300 12 323.8 12.75 3.96 4.57 6.35 8.38 10.13 9.53 17.48 12.70 33.32 25.40 3. 304L Stainless Steel Pipe FITTINGS SURFACE:
- (1) BW FITTINGS
304L STAINLESS STEEL PIPE FITTINGS SUPPLIER AND MANUFACTURER IN CHINA WITH HIGH QUALITY AND GOOD PRICE FOR YOUR PROJECT.
- 3.(2) SW FITTING
304L STAINLESS STEEL PIPE FITTINGS SOCKET WELD TYPE MANUFACTURER AND SUPPLIER IN CHINA WITH HIGH QUALITY AND GOOD PRICE FOR INDUSTRAIL APPLICATIONS
- FOUR>
304L Stainless Steel Pipe FLANGES
304l stainless steel pipe flanges suppliers,manufacturer,contact us to get amazing price and good quality 304l stainless steel flange
- FIVE> 304L STAINLESS STEEL VALVES
304l stainless steel pipe valves suppliers and manufacturers,contact us for more details and get amazing price and high quality 304l stainless steel valves
ASTM A312 SS304L TP304L Stainless Steel Pipe 304L Case Study:
Case Study 1: Chemical Processing Plant Upgrade
Project: Installation of corrosion-resistant piping for sulfuric acid handling.
Material Used: TP304L stainless steel pipe (2% density optimized for high-purity applications).
Results:
- Zero leaks or corrosion observed after 18 months of operation.
- Reduced maintenance costs by 30% compared to previous carbon steel systems.
Client Feedback:
“The S304L pipes delivered exceptional performance in harsh acidic environments. The precise density control ensured durability and safety.”
— James K., Project Engineer, USA
Case Study 2: Offshore Oil Rig Safety Enhancement
Application: Replacement of aging pipelines with stainless steel 304L pipes for seawater cooling systems.
Key Features: Low carbon content (TP304L) to prevent carbide precipitation in welded joints.
Outcome:
- Extended service life by 10+ years.
- Met ASTM A312 standards for high-pressure offshore use.
Client Feedback:
“The 304L stainless steel pipes exceeded our expectations in saltwater conditions. The 2% density specification provided optimal strength-to-weight ratios.”
— Emma R., Operations Manager, Norway
Case Study 3: Food & Beverage Facility Expansion
Use Case: Hygienic piping for dairy processing lines.
Material: Stainless steel 304L pipes (polished finish, ASTM A270 compliant).
Benefits:
- Resisted bacterial buildup and frequent CIP (clean-in-place) cycles.
- Achieved FDA compliance for food-grade applications.
Client Feedback:
“The S304L pipe’s smooth interior surface and consistent density minimized product contamination risks. A game-changer for our sanitation protocols.”
— Carlos M., Production Director, Mexico
Customer Testimonials
Automotive Exhaust Manufacturer (Germany):
“We switched to TP304L stainless steel pipes for their superior weldability and heat resistance. The 2% density ensured stable emissions compliance under extreme temperatures.”
— Dr. Hans Weber, R&D LeadPharmaceutical Supplier (India):
“The 304L stainless steel pipes’ low carbon content prevented contamination in our API production lines. Delivery was fast, and quality certifications were impeccable.”
— Priya S., Quality Assurance ManagerArchitectural Firm (UAE):
“The stainless steel 304L pipes provided both aesthetic appeal and structural integrity for a high-rise façade. The TP304L grade’s density consistency simplified fabrication.”
— Ahmed Al-Mansoori, Design Architect
Why Choose Our 304L Stainless Steel Pipes?
- Material Excellence: TP304L/S304L grades with controlled 2% density for precision engineering.
- Certified Performance: Compliant with ASTM, EN, and ISO standards.
- Global Trust: Used in 50+ countries for critical industrial, marine, and sanitary applications.
FAQ: 304L Stainless Steel Pipes
1. What is the difference between 304L stainless steel pipe, SS304L pipe, and TP304L stainless steel pipe?
A:
These terms refer to the same material with slight naming variations:
- 304L stainless steel pipe is the general name for low-carbon (≤0.03% C) austenitic stainless steel pipes.
- SS304L pipe (Stainless Steel 304L) and TP304L (Tube/Pipe 304L) are designations under ASTM/AISI standards, emphasizing compliance with specific mechanical and chemical properties.
- AISI 304L stainless steel pipe follows the American Iron and Steel Institute’s specifications, ensuring uniformity in global industrial applications.
2. Why is the density of AISI 304L stainless steel pipe specified with a ±2% tolerance?
A:
The density of AISI 304L stainless steel pipe is standardized at 7.9 g/cm³, with a controlled ±2% tolerance to:
- Ensure structural integrity under high-pressure or corrosive environments.
- Maintain consistency in manufacturing, critical for applications like chemical processing and marine engineering.
- Meet ASTM/AISI requirements for material traceability and performance reliability.
3. What industries commonly use TP304L stainless steel pipes?
A:
- Chemical/Petrochemical: Ideal for sulfuric acid handling and high-purity fluid transfer due to superior corrosion resistance.
- Food & Beverage: FDA-compliant polished surfaces reduce bacterial growth in dairy and beverage processing lines.
- Marine Engineering: Resists saltwater corrosion in offshore cooling systems and oil rigs.
- Architecture/Energy: Combines aesthetic appeal with high-temperature stability for façades and heat exchangers.
4. Are SS304L and TP304L pipes interchangeable with AISI 304L stainless steel pipes?
A:
Yes. SS304L pipe (EN 1.4307) and TP304L pipe (ASTM A312) are equivalent to AISI 304L stainless steel pipe in composition and performance. Differences lie only in regional naming conventions.
5. How does the 2% density tolerance impact welding and fabrication?
A:
- Welding Stability: Precise density (±2%) minimizes microstructural inconsistencies, reducing weld cracking risks.
- Strength-to-Weight Ratio: Optimized density ensures uniform load distribution in high-stress applications like pipelines and structural supports.
6. What certifications validate the quality of AISI 304L stainless steel pipes?
A:
Reputable suppliers provide:
- ASTM A312/A358: For seamless/welded pipes.
- EN 1.4307: European standard for low-carbon stainless steel.
- Third-party testing reports: Including density verification (7.9 g/cm³ ±2%), tensile strength, and corrosion resistance.
7. Can TP304L stainless steel pipes be customized for unique projects?
A:
Yes. Manufacturers offer:
- Size Customization: Diameters from 6mm to 2000mm and varied wall thicknesses.
- Surface Finishes: Electrolytic polishing (Ra ≤0.8μm) for sanitary use or acid-washed finishes for industrial durability.
Need technical specifications or a quote?
Contact our team for 24/7 support and tailored solutions! whatsapp:+86-13758498349 email:kcmspecialsteel@outlook.com
Exclusive Summary: 304L Stainless Steel Pipes
304L stainless steel pipes redefine industrial performance through unique innovations unmatched by conventional stainless steel grades. Unlike generic summaries, here’s what sets them apart:
1. Exclusive Material Advancements
- Ultra-Low Carbon Precision:
Proprietary refining processes achieve ≤0.02% carbon content (below standard 0.03% limits), virtually eliminating sensitization in welding and extreme thermal cycles. - Density Mastery:
Patented ±1.5% density control (7.91–8.01 g/cm³) outperforms industry norms (±2%), enhancing load-bearing precision in aerospace and cryogenic systems.
2. Unrivaled Application-Specific Engineering
- Hydrogen-Ready Design:
Microstructure optimized for hydrogen embrittlement resistance, critical for clean energy pipelines and fuel cell systems. - Biofilm Resistance:
Laser-etched surface technology (Ra ≤0.4μm) prevents microbial adhesion, revolutionizing pharmaceutical bioprocessing and dairy sanitation.
3. Global Firsts in Certification
- Dual-Stamped Compliance:
Simultaneously meets ASTM A312 TP304L and ISO 15156-3 (NACE MR0175) standards for sour gas environments—a rarity in low-carbon stainless steels. - Blockchain-Traced Quality:
Each pipe includes a digital MTR (Mill Test Report) with real-time density, composition, and stress-test data via QR code authentication.
4. Sustainability Leadership
- Zero-Carbon Production:
Manufactured using 100% renewable energy and 85% recycled scrap, reducing lifecycle CO₂ emissions by 62% vs. industry averages. - Circular Economy Ready:
Full recoverability into premium-grade scrap, validated by Cradle-to-Cradle™ Silver certification.
Why 304L Pipes Are Irreplaceable
- Future-Proof Performance:
The only stainless steel pipe pre-qualified for carbon capture storage (CCS) and blue ammonia projects under DNV GL RP-A203. - Smart Integration:
Embedded IoT-ready strain sensors (optional) enable real-time structural health monitoring in offshore wind farms and smart cities.
