BEST PIPELINE EQUIPMENT CO.,LTD
Your one stop shop for all your piping needs such as Seamless & Welded Carbon / Stainless & Alloy Steel Pipes, Mainly alloy Steel Pipes , Forged Flanges, Butt Weld Fittings, Forged Fittings,
Add to Cart
Product Name : Dimensions and weights of seamless tubes according to standards EN, DIN, BS, UNI, NFA, STN, ČSN, GOST, PN-H
Plain-end seamless tubes and pipes
Dimensional standards
EN 10220:2002 “Seamless and welded steel tubes - General tables of dimensions and masses per unit length”
ISO 4200:1991 “Plain-end steel tubes, welded and seamless”
CSN 42 5715:1981 “Hot-rolled seamless steel tube”
CSN 42 5716:1981 “Hot-rolled seamless steel tube with small tolerances”
DIN 2448:1981 “Seamless steel tubes”
GOST 8732:1978 “Hot-rolled seamless steel pipes”
ASME B36.10M:2004 “Welded and hot-rolled seamless steel pipes”
KN 45 1103:19971 “Type III casings” - seamless for deep drilling - sizes
Technical delivery regulations for tubes and pipes of carbon steel
CSN 42 0250:1988 “Hot rolled seamless tubes of class 10 to 16 steels”
CSN 42 0165:1990 “Sheets and pipes of ferrite-pearlite steels with guaranteed impact properties at low temperatures”
DIN 1629:1984 “Seamless circular tubes of non-alloy steels with special quality requirements”
DIN 1630:1984 “Seamless circular tubes of non-alloy steels for extra-high requirements”
DIN 17 121:1984 “Seamless structural steel circular tubes for structural engineering purposes”
ASTM A 53:2004 + ASME SA 53:2004 “Seamless and welded black tubes suitable for zinc dipping”
ASTM A 501:2001 “Hot-formed welded and seamless carbon steel structural tubing”
ASTM A 519:2003 “Seamless carbon and alloy steel mechanical tubing”
NF A 49-112:1987 “Plain-end seamless hot rolled steel tubes with guaranteed room temperature properties
and with special delivery conditions”, all sizes that comply with DIN 2448
1: Product Information
| Product name | seamless boiler steel pipe&tube |
| Standard | GB JIS ASTM AISI DIN ect |
| Material | ASTM A 179 A53 A106,API5L Gr.B X60 X42,Q235B, Q345B, Q345C, 20#, 12Cr1MoV,15CrMo, TP304,316 310S.S235JR ect |
| Thickness | 1-100mm |
| Schedule | SCH5S,SCH10S,SCH10,SCH20,SCH30,SCH40S,SCH40,STD,SCH80,SCHXS, SCH160,SCHXXS,ect |
| Outer diameter | 6-820 mm |
| Length | 5.8m 6m 12m or as customer demand |
| Used area | Petroleum,chemical,power, gas, water, metallurgy, shipbuilding, construction , etc Or as customer demand |
| Package | In bundles, Varnish coating, Ends can be beveled or square cut, End capped |
| Certification | ISO9001.2000, , API, Mill Test Certificate |
| Thirdparty inspection | OMIC,SGS, or as customer demand |
| Remark | We can customer made for special requirement |
2: Tolerance in Dimension:
| OD | GB/T3639(GB8713) | DIN2391(EN10305) | Our Tolerence | Best Quality |
| 4-30mm | ±0.10mm | ±0.08mm | ±0.05mm | ±0.02mm |
| 31-40mm | ±0.15mm | ±0.15mm | ±0.05mm | ±0.03mm |
| 41-50mm | ±0.20mm | ±0.20mm | ±0.05mm | ±0.03mm |
| 51-60mm | ±0.25mm | ±0.25mm | ±0.08mm | ±0.03mm |
| 61-70mm | ±0.30mm | ±0.30mm | ±0.10mm | ±0.05mm |
| 71-160mm | ±0.30mm | ±0.30mm | ±0.10mm | ±0.05mm |
| Tolerance in WT | ±0.12mm | ±0.10mm | ±0.05mm | ±0.03mm |
| Process | Diameter | Length | Precision | Inner Hole Roughness |
| Cold Rolled | 30-100mm | ≤12 m | H8-H10 | 0.4-1.6 |
| Cold Draw | 30-250mm | ≤12 m | H8-H10 | 0.8-1.6 |
| Honing | 40-500mm | ≤12 m | H8-H9 | 0.4-0.8 |
| Rolling | 40-400mm | ≤7 m | H8 | 0.4 |
| Inner Diameter | H8 | H9 | H10 |
3:Our Services:
According to the different needs of customers, seriously implement each order, let customers are satisfied
4:Company Information:
More than 20 years of careful management, customer first, quality first, the company expects to carry out multiple aspects of the level of cooperation with the customer
5:Product Show
7:Delivey conditions:
| Material | Tensile strength | Yield strength | Elongation | Hardness |
| Ck20/20#/AISI1020 | >520 N/ mm2 | >375 N/mm2 | >15% | >85HB |
| Ck45/45#/AISI1045 | >600 N/ mm2 | >520 N/ mm2 | >15% | >85HB |
| ST52/16Mn/Q345D | >600 N/ mm2 | >520 N/ mm2 | >15% | >85HB |
| 25Mn/STKM 13C-T | >600 N/ mm2 | >530 N/ mm2 | >15% | >85HB |