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Products
Brand: Chengde
Type: Seamless
Certification: CE
Application: Gas Pipe
Section Shape: Round
Surface Treatment: Varnishing
Usage: Oil&Gas Well Drilling
Technique: Hot Rolled
Material: Alloy Steel
Productivity: 150000 tons per year
Transportation: Ocean
Place of Origin: China
Supply Ability: 300000 tons per year
Certificate: ISO9001 and ISO14001/OHSAS18001
Port: Shanghai
Payment Type: L/C,T/T,D/P
Incoterm: FOB,CFR,CIF,EXW,FCA
Seamless Steel Pipe
Surface: bare, black varnish or light oiled
Pipe End: Plain or Beveled (Can be Protected By Plastic Pipe Cap)
NDE: UT, ET or Hydraulic testing
Straightness: WT＜30mm, not more than 2mm per meter
WT≥30mm, not more than 3mm per meter
Others: According ASTM A519 standard
Chengde invented the Piercing-Rolling joint production technologies with its own patents and intellectual properties. The process is unique from others with following edges:
1. Stable, fast and continuous
2.Flexible on non-standard sizes
3.Swift tooling switching
4.Uniform mechanical properties and dimensions in longitudinal& transversal directions
5.Better surface condition thanks to shorter rolling time & good tooling quality
6.Three-roller/five racks sizing machine can avoid inner hexagon significantly
Our products can meet the standard requirements as follows:
| Grade | C | Mn | Pmax | S max | Si | Cr | Mo |
| 4130 | 0.28-0.33 | 0.4-0.6 | 0.04 | 0.04 | 0.15-0.35 | 0.8-1.1 | 0.15-0.25 |
| 4140 | 0.38-0.43 | 0.75-1 | 0.04 | 0.04 | 0.15-0.35 | 0.8-1.1 | 0.15-0.25 |
| 4142 | 0.4-0.45 | 0.75-1 | 0.04 | 0.04 | 0.15-0.35 | 0.8-1.1 | 0.15-0.25 |
| 4145 | 0.43-0.48 | 0.75-1 | 0.04 | 0.04 | 0.15-0.35 | 0.8-1.1 | 0.15-0.25 |
| 4147 | 0.45-0.5 | 0.75-1 | 0.04 | 0.04 | 0.15-0.35 | 0.8-1.1 | 0.15-0.25 |
YC has been granted a number of approval certificate by international institutions, such as ASME Nuclear pipe certificate, China Nuclear HAF certificate, 914mm Cylinder certificate, API monogram and certificate, ISO9001 by TUV NORD, ISO14001/OHSAS18001 by CQC, approvals from Shipping Classification Bureaus like DNV, RINA, ABS, Lloyd, GL, Bureau Veritas, and permit of exporting to Europe as PED 2014/68/EU and AD 2000 certificates for pressure pipes, CPD (Construction Products Directive), etc. and these certificates support the development of international sales market.
Product Categories : Alloy Steel Pipe > Gas Cylinder Pipe
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.