Wuxi Laiyuan Special Steel Co., Ltd.
| Payment Terms | L/C, T/T |
| Supply Ability | 8,000 ton per month |
| Delivery Time | 10-15 days after advance payment |
| Packaging Details | Kraft paper, wooden case, packaging according to customer requirements |
| Name | DIN 17175 ST35.8 Seamless Carbon Steel Pipes Hollow AISI 1020 Mild Steel |
| Length | or as required,random length or fixed length |
| Surface | Customers't Requirement |
| Usage | Construction Structure,Building,Transportation,For Liquid Delivery,chemical industry |
| Material | 10#.20#,Q195/Q215/Q235/Q345,carbon steel pipe mild steel pipe,ASTM A53 |
| Shape | Round Shape,Square. Rectangular.Round,Round Section mild steel pipe |
| Thickness | 1 - 200 mm,2.24 - 33.32 mm,0.5 - 20 mm,1.6 - 28 mm,1.5 - 45 mm |
| Outer diameter(round) | 6 - 2500 mm,8 - 80 mm,4 - 3048 mm,13.7 - 820 mm,15 - 1000 mm |
| Brand Name | TISCO BAOSTEEL |
| Model Number | 20# |
| Certification | SGS BV |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 8,000 ton per month |
| Delivery Time | 10-15 days after advance payment | Packaging Details | Kraft paper, wooden case, packaging according to customer requirements |
| Name | DIN 17175 ST35.8 Seamless Carbon Steel Pipes Hollow AISI 1020 Mild Steel | Length | or as required,random length or fixed length |
| Surface | Customers't Requirement | Usage | Construction Structure,Building,Transportation,For Liquid Delivery,chemical industry |
| Material | 10#.20#,Q195/Q215/Q235/Q345,carbon steel pipe mild steel pipe,ASTM A53 | Shape | Round Shape,Square. Rectangular.Round,Round Section mild steel pipe |
| Thickness | 1 - 200 mm,2.24 - 33.32 mm,0.5 - 20 mm,1.6 - 28 mm,1.5 - 45 mm | Outer diameter(round) | 6 - 2500 mm,8 - 80 mm,4 - 3048 mm,13.7 - 820 mm,15 - 1000 mm |
| Brand Name | TISCO BAOSTEEL | Model Number | 20# |
| Certification | SGS BV | Place of Origin | China |
| High Light | St35.8 Seamless Carbon Steel Pipes ，DIN 17175 Seamless Carbon Steel Pipes ，St35.8 hollow aisi 1020 mild steel | ||
DIN 17175 ST35.8 Seamless Carbon Steel Pipes Hollow AISI 1020 Mild Steel
seamless pipes grades and production methods
1. Round bar making Hollow Bar
according to customer's demanded material to produce the round bar, then making annealled heat treatment, then drill the hole as customer demanded inner diameter into the round bar, round bar piercing, making rough hole, then make precision processing to make outer diameter and inner diameter as requested. Any size hollow bar can be produced as demanded.
Tolerance for hollow round bar, forged round bar drilling hole hollow bar ASME SA530
| Type | Outer diameter(inner diameter) | Allowed tolerance | Wall thickness allowed tolerance |
Outer diameter | ≥219-457.2mm | -0.8 - +2.4mm | -0.8 - +4.0mm |
| >457.2-660.4mm | -0.8 - +3.2mm | ||
| >660.4-863.6mm | -0.8 - +4.0mm | ||
| >863.6mm | -0.8 - +4.8mm | ||
| Inner diameter | All size | -1.6- 0mm | 0 - +3.2mm |
length tolerance -0 - +50mm
Round bar making Hollow bar cost is high
2. Hot rolled Hollow Bar
using hot rolled steel pipe billet to make heating and piercing, elongating, sizing and stranghtening, cooling, finally hollow bars finished, this is the type most commonly used. Because it is hot rolled, so cost is lowest, but it is suit for large quantity, for small quantity, have to make cold drawn or round bar piercing. size: outer diameter 32mm- 499mm, wall thickness 4mm- 80mm
3. Cold drawn Hollow Bar
for outer diameter not over than 63.5mm, small size hollow bar, when demanded quantity is under 5 tons, usually make cold drawn hollow bar, using larger size hot rolled hollow bar to draw to the size demanded.
some size can be finished only by one time drawing, but some other sizes might need twice or three times to finish drawing, it takes time, so the cost is higher.
cold drawn size outer diameter 32mm- 63.5mm
4. Hot- expanding Hollow Bar
For hollow bar sizes are special, not common sizes, have to use smaller thick wall hollow bar to hot expand to be larger size hollow bar, but the technical property for hot-expanded hollow bar will be lower than the original hollow bar. Size: outer diameter over 356mm.
the seamless pipe grades can be supplied
Seamless Steel pipe grades
| Descriptions | Grades |
| Structural pipe | 20# 35# 45# Q345B, 16Mn, Q345B-E, 20Mn2, 25Mn, 30Mn2, 40Mn2, 45Mn2 SAE1018, SAE1020, SAE1518, SAE1045. |
| Liquid pipe | 20# q295b-e, q345b-e |
| High pressure boiler tube | 20G 15MnG 20MnG 15CrMoG, 12Cr1MoVG St35.8, sa106b, sa106c, sa210a, sa210c, A333P2, A333P11, A33P12, A333P22, A33P36, A333P91, A333P92, A335T2, A335T11, A335T12, A335T22, A335T91, A335T23, A335T9 |
| Pipeline | API SPEC 5L, X42, X52, X60, X65,X70,X80 ASTMA53, ASTM A106, ASTM A333, BS301, BS3602, BS3603, BS3604, PSL1, PSL2, DNV-OS-F101, CSA-Z245 |
| Alloy pipe | 4140, 42CrMo, 32CrMo, 15CrMo, |
| Packing | Black paint, Varnish painting, Tarpaulin packing |
| End | Common round end, beveled. |
| Processing | Galvanizing; cutting; making thread outside the pipe; Machining. |
| outer diameter | 16mm- 800mm |
| wall thickness | 4mm- 80mm |
We have huge experience, expertise in Mild steel pipe and the best dedicated team to deliver best quality products delivered as well as services at the most affordable prices for Mild steel pipe. We are looking ourselves as good business partners for customers and are looking forward to establish long term professional relationship. With our world class manufacturing facilities to Mild steel pipe.
We are able to deliver on time for all grades of Mild steel pipe. Our stock house always has storage capacity for keeping lots of order from our clients. We make sure that the packaging of ordered materials is done in the best way.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2007
Total Annual:
20000000-30000000
Employee Number:
100~200
Ecer Certification：
Active Member
We are the exporters, stockiest & suppliers of Stainless Steel,Galvanized steel,Carbon steel,Aluminum steel and Nickel Alloy Coil,Strips,Sheets, Tube,Foil and Shims. Wuxi Laiyuan Special Steel Co., Ltd. takes immense pleasure in introducing itself as one of the leading names in the Eng... We are the exporters, stockiest & suppliers of Stainless Steel,Galvanized steel,Carbon steel,Aluminum steel and Nickel Alloy Coil,Strips,Sheets, Tube,Foil and Shims. Wuxi Laiyuan Special Steel Co., Ltd. takes immense pleasure in introducing itself as one of the leading names in the Eng...
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