Seamless Steel Pipe
Seamless pipe, as the name suggests, is a pipe without a seam or a weld-joint. Seamless Steel Pipe is made from a solid round steel ‘billet’ which is heated and pushed or pulled over a form until the steel is shaped into a hollow pipe.
PRODUCT DESCRIPTION
Product introduction
This specification covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. The pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. All seamless and welded pipes shall be treated to control their micro-structure. Tensile tests, impact tests, hydro-static tests, and nondestructive electric tests shall be made in accordance to specified requirements.
1. Scope
1.1 This specification covers nominal (average) wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. Several grades of ferric steel are included as listed in Table 1. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse affect on low-temperature impact properties.
1.2 Supplementary Requirement S1 of an optional nature is provided. This shall apply only when specified by the purchaser.
1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in non-conformance with the specification. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.
Technical data
Seamless Steel Pipe Chemical Composition and Mechanical Properties
This data is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
| Standard | Grade | Chemical Composition (%) | Mechanical Properties | |||||
| ASTM A53 | C | Si | Mn | P | S | Tensile STrength(Mpa) | Yield STrength(Mpa) | |
| A | ≤0.25 | – | ≤0.95 | ≤0.05 | ≤0.06 | ≥330 | ≥205 | |
| B | ≤0.30 | – | ≤1.2 | ≤0.05 | ≤0.06 | ≥415 | ≥240 | |
| ASTM A106 | A | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≥415 | ≥240 |
| B | ≤0.35 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≥485 | ≥275 | |
| ASTM A179 | A179 | 0.06-0.18 | – | 0.27-0.63 | ≤0.035 | ≤0.035 | ≥325 | ≥180 |
| ASTM A192 | A192 | 0.06-0.18 | ≤0.25 | 0.27-0.63 | ≤0.035 | ≤0.035 | ≥325 | ≥180 |
| API 5L PSL1 | A | 0.22 | – | 0.90 | 0.030 | 0.030 | ≥331 | ≥207 |
| B | 0.28 | – | 1.20 | 0.030 | 0.030 | ≥414 | ≥241 | |
| X42 | 0.28 | – | 1.30 | 0.030 | 0.030 | ≥414 | ≥290 | |
| X46 | 0.28 | – | 1.40 | 0.030 | 0.030 | ≥434 | ≥317 | |
| X52 | 0.28 | – | 1.40 | 0.030 | 0.030 | ≥455 | ≥359 | |
| X56 | 0.28 | – | 1.40 | 0.030 | 0.030 | ≥490 | ≥386 | |
| X60 | 0.28 | – | 1.40 | 0.030 | 0.030 | ≥517 | ≥448 | |
| X65 | 0.28 | – | 1.40 | 0.030 | 0.030 | ≥531 | ≥448 | |
| X70 | 0.28 | – | 1.40 | 0.030 | 0.030 | ≥565 | ≥483 | |
| API 5L PSL2 | B | 0.24 | – | 1.20 | 0.025 | 0.015 | ≥414 | ≥241 |
| X42 | 0.24 | – | 1.30 | 0.025 | 0.015 | ≥414 | ≥290 | |
| X46 | 0.24 | – | 1.40 | 0.025 | 0.015 | ≥434 | ≥317 | |
| X52 | 0.24 | – | 1.40 | 0.025 | 0.015 | ≥455 | ≥359 | |
| X56 | 0.24 | – | 1.40 | 0.025 | 0.015 | ≥490 | ≥386 | |
| X60 | 0.24 | – | 1.40 | 0.025 | 0.015 | ≥517 | ≥414 | |
| X65 | 0.24 | – | 1.40 | 0.025 | 0.015 | ≥531 | ≥448 | |
| X70 | 0.24 | – | 1.40 | 0.025 | 0.015 | ≥565 | ≥483 | |
| X80 | 0.24 | – | 1.40 | 0.025 | 0.015 | ≥621 | ≥552 | |
Carbon Steel Seamless Pipe Chemical Composition and Mechanical Properties
| Standard | Grade | Chemical Composition | Mechanical Properties | |||||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation(%) | ||
| GB/T8163 | 10 | 0.07-0.14 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | ≤0.15 | ≤0.25 | ≤0.25 | 335-457 | ≥205 | ≥24 |
| 20 | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | ≤0.25 | 410-550 | ≥245 | ≥20 | |
| Q345 | 0.12-0.20 | 0.20-0.55 | 1.20-1.60 | ≤0.045 | ≤0.045 | – | – | – | 490-665 | ≥325 | ≥21 | |
Carbon Steel Seamless Pipe Tolerance
| Pipe types | Pipe Szie(mm) | Tolerances | |
| Hot rolled | OD | All | ±1% (min ±0.50mm) |
| WT | All | +15%, -12.5% | |
| Cold drawn | OD | 6～10 | ±0.20mm |
| 10～30 | ±0.40mm | ||
| 30～50 | ±0.45mm | ||
| >50 | ±1% | ||
| WT | ≤1 | ±0.15mm | |
| >1～3 | +15% -10% | ||
| >3 | +12.5% -10% | ||
Seamless Steel Pipe End
| Plain End | Wall Thickness less than 0.5 inch, including SCH STD & SCH XS |
| Plain End (Square Cut) | Wall Thickness over 0.5 inch, including SCH XXS |
| Beveled End | Wall Thickness less than 0.5 inch, including SCH STD & SCH XS |
| Couplings | Outside Diameter equal or less than 2” |
| Thread Protection | Outside Diameter over 4 inch |
Packing and shipping
Our products are exported to more than 60 countries and regions including Europe, the Middle East, Southeast Asia, Australia, etc. We promise”complete specifications, prompt delivery, high quality, competitive price, “The unwavering supports you provide, along with the increasing requirements you put contributes to more varied high-quality products with more competitive prices we offer.
It has scale advantages, resource advantages, integration advantages, technology research and development advantages, capital operation advantages, and has a complete pre-sales, sales and after-sales service system. We continue to innovate and seek transformation, and are willing to provide better services to customers around the world.
Application field
BAOSTEEL NEW MATERIALS GROUP CO.,LIMITED is a modern integrated steel service enterprise specializing in steel products processing, sales and technical services.The products are widely used in water conservancy projects, military equipment, construction industry, aerospace, automobiles, home appliances and other fields.
ADVANTAGE
ATTRACTNVEAND REASONABLE PRICE
We have our own manufacture, which means we cangive you a very competitive price in the industry
SPECIALZED MANUFAGTURERS
Specializes in manufacturing and selling thehigh-quality stainless steel, choose us we can offer you the best stainless steel products
15 YEARS' EXPERIENCE
With years' experience in the line, we are readyto provide with best service and high-qualityproducts in timely delivery
PROFESSIONAL TEAM
Our professional engineering and technicalteam has extensive knowledge in the stain- less steel manufacturing industry
FAQ
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A:Our price is very competitive because we are a factory. Pls feel free to contact us if you are interested in our products.
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Provide the assembly assembly drawing of the lifting platform for free
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept the third party inspection absolutely.
A:Within 15-45 days after we confirm you requirement.
A: Exported to more than 80 countries mainly from America, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, United Arab Emirates and etc.
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