| Place of Origin: | China |
|---|---|
| Certification: | ISO9001 |
| Packaging Details: | In Bundles, Woodenbox As Your Requirement |
| Name: | Seamless Pipe Manufacturers ASTM A355 Seamless Stainless Steel Tubing Seamless Boiler Tubes | Keyword: | Seamless Boiler Tube |
|---|---|---|---|
| Standard: | ASTM, DIN, GB, JIS, EN | Grade: | 12Cr1MoVG 20# 45# 16Mn,20G Cr9Mo 10CrMo910 15Mo3 15CrMoV |
| Thickness: | 3mm-180mm | Straightness: | <=0.5/1000 |
| Length: | 6m, Random Length Or Fixed Length | Schedule: | SCH10,,SCH40,SCH60,SCH80, SCH120,SCH160 XXS |
| Roughness: | Ra 0.2-0.4 Um | Shape: | Round.square.Rectangle |
| Tolerance: | ±1% | Surface Treatment: | Hot Rolled And Cold Rolled |
| Wall Thickness: | 3mm-30mm | Certificate: | CE, GS, ISO9001 |
| O.D: | 159mm-3200mm | Ends: | Plain Beveled Square Cut |
| High Light: | ASTM A355 Seamless Boiler Tube,12Cr1MoVG Seamless Boiler Tube,12Cr1MoVG carbon steel boiler tubes |
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Seamless Pipe Manufacturers ASTM A355 Seamless Stainless Steel Tubing Seamless Boiler Tubes
Description
(1) Manufacturing method:
1. Both medium-pressure and high-pressure boiler tubes undergo the same initial process of manufacturing, which includes fine drawing, surface bright, hot rolling, cold drawn and heat expansion. However, the following steps are undertaken to make high-pressure pipes stronger and more resistant.
2. Heat treatment includes heating and cooling of the high-pressure boiler pipes which increases toughness, hardness and wear resistance. The different steps that come under heat treatment include quenching, tempering and annealing.
3. Quenching is done to increase the hardness of the high-pressure boiler tube. The pipe is heated evenly to an appropriate temperature and then quickly immersed into water or oil for instant cooling. This is followed by cooling in air or in the freezing zone.
4. Tempering is used to remove brittleness from the pipe. Quenching can cause the pipe to become tapped or broken.
5. Annealing can remove the internal stress in the pipe. In this process, the seamless tube is heated to the critical temperature and then left for slow cooling in ash or lime.
Seamless steel tube production process:
a. Hot rolled (extruded) seamless steel tube: round tube billet → heating → piercing → three-roll cross rolling, continuous rolling or extrusion → tube removal → sizing (or reducing) → cooling → straightening →Hydrostatic test (or flaw detection) → marking → storage
b. Cold drawn (rolled) seamless steel tube: round tube blank→heating→perforation→heading→annealing→pickling→oiling (copper plating)→multi-pass cold drawing (cold rolling)→blank tube→heat treatment→Straightening→hydrostatic test (flaw detection)→marking→warehousing
Specification
| Standard |
ASTM A213 T5 A209 T1 A335 P11 P22 P5 alloy steel pipe AP175-79, DIN2I5L , ASTM A106 Gr.B, ASTM A53 Gr.B, ASTM A179/A192/A213/A210 /370 WP91, WP11,WP22. DIN17440, DIN2448,JISG3452-54,DIN 17175. |
| Material | 15CrMoG,12Cr2MoG,12Cr1MoVG,12Cr2MoWVTiB,10Cr9Mo1VNb,SA210A1,SA210C,SA213 T11,SA213 T12,SA213 T22,SA213 T23,SA213 T91,SA213 T92,ST45.8/Ⅲ,15Mo3,13CrMo44,10CrMo910,16Mn 12Cr1MoV T91 27SiMn 30CrMo 15CrMo 20G Cr9Mo 10CrMo910 15Mo3 15CrMoV 35CrMoV 45CrMo |
| Certificates | API5L ISO 9001:2008 TUV SGS BV etc |
| Outside Diameter | 1/2'--24' |
| 32mm-630mm | |
| Thickness |
SCH5S, SCH10S, SCH20S,SCH20, SCH30,STD, SCH40, SCH60, SCH80, SCH100, SCH140, SCH160,XS, |
| 1.65mm-59.54mm | |
| Length | 5.8m 6m Fixed, 12m Fixed, 2-12m Random. |
| Technic | 1/2'--6': hot piercing processing technic |
| 6'--24' : hot extrusion processing technic | |
| Surface Treatment | Black Painted, Galvanized, Natural, Anticorrosive 3PE coated,polyurethane foam Insulation . |
| Packing |
Bundles or In bulk. bundled pipes with two slings at the both end for easy loading and discharging, |
| End |
Bevel end(>2"), Plain (≤2"),with plastic cap, with screwed and socket. |
FAQ
Q: What product information must I provide before making a purchase?
Please provide the grade, width, thickness, and surface treatment requirements, as well as the quantities you require.
Q: What shipping ports are there?
We normally ship from Shanghai,Tianjin, Qingdao, and Ningbo ports
Q: Is it possible to send samples?
Of course, we offer free samples and express shipping to customers all over the world.
Q: Do you offer a service for customized products?
Yes, we can produce according to your specifications and drawings.
Q: Can I pay you a visit at your factory?
Customers from all around the world are welcome to visit our factory.
Q: Can you assist me in importing steel products for the first time?
Yes, we have shipping agent who will arrange the shipment with you.
Q: Do you have any MOQ limit for production?
We don’t have any MOQ limit. But as for our steel pipe product, we usually use container transport for lower freight. In the case of express delivery, high freight charges will be generated.
Q: Is it OK to print my logo on the product or the carton packing?
Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
Q: How to pack the product?
The inner layer has a waterproof paper outer layer, iron packaging, and is fixed with a fumigated wooden pallet. It
can effectively protect products from corrosion during ocean transportatio