Chemical Composition(%)
| Standard | Grade | C | Si | Mn | P | S | Cr | Mo | V | Ti | B | W | Nb |
| ASTM A213 | T11 | 0.05-0.15 | 0.50-1.00 | 0.30-0.60 | ≤0.025 | ≤0.020 | 1.00- 1.50 | 0.44- 0.65 | — | — | — | — | — |
| T22 | 0.05-0.15 | ≤0.50 | 0.30-0.60 | ≤0.025 | ≤0.020 | 1.90- 2.60 | 0.87- 1.13 | — | — | — | — | — | |
| T91 | 0.08-0.12 | 0.20-0.50 | 0.30-0.60 | ≤0.025 | ≤0.010 | 8.00- 9.50 | 0.85- 1.05 | 0.18- 0.25 | Ni | Al | N | 0.06- 0.10 | |
≤0.40 | ≤0.40 | 0.030-0.070 | |||||||||||
| T23 | 0.04-0.10 | 0.50 | 0.10-0.60 | ≤0.025 | ≤0.010 | 1.90- 2.60 | 0.05- 0.30 | 0.20- 0.30 | Al,Ni | 0.0005- 0.006 | 1.45- 1.75 | 0.02- 0.08 | |
≤0.030 | |||||||||||||
| T2 | 0.10-0.20 | 0.10-0.30 | 0.30-0.61 | ≤0.025 | ≤0.020 | 0.50- 0.81 | 0.44- 0.65 | — | — | — | — | — | |
| T12 | 0.05-0.15 | ≤0.50 | 0.30-0.61 | ≤0.025 | ≤0.020 | 0.80- 1.25 | 0.44- 0.65 | — | — | — | — | — |
Mechanical Properties
| Standard | Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) Min | Hardness Max |
| ASTM A213 | T11 | ≥415 | 205 | 85HRB(163HB) |
| T22 | ≥415 | 205 | 85HRB(163HB) | |
| T91 | ≥415 | 220 | 85HRB(163HB) | |
| T23 | ≥415 | 205 | 85HRB(163HB) | |
| T2 | ≥510 | 400 | 97HRB(220HB) | |
| T12 | ≥585 | 415 | 25HRB(250HB) |
| Size | OuterDiameter | 17-1422mm |
| WallThickness | 2-59mm | |
| Length | 5m-14m,5.8m,6m,10m-12m,12m or as customer'sactual request | |
| Ends | Plainend/Beveled,protected by plastic caps on both ends, cut quare,grooved,threadedand coupling,etc | |
| SurfaceTreatment | Bare,Paintingblack,varnished,galvanized,anti-corrosion 3PE PP/EP/FBEcoating | |
| TechnicalMethods | Hot-rolled/Cold-drawn/Hot-expanded | |
| TestingMethods | Eddy current testing,Hydrostatic testing or Ultrasonic examination, NDT and also with chemical andphysical property inspection | |
| Packaging | Small pipesin bundles with strong steel strips,large pieces in loose; Covered with plasticwoven bags; Loaded in 40ft or 20ft container or in bulk;Also according tocustomer's requests | |
| Origin | HebeiProv.China | |
| Certificates | API ISO PEDLloyd's CE | |
| Third PartyInspection | SGS BVMTC | |
| PaymentTerms | FOB 30%T/T,70% before shipment CIF 30%pre-payment and the balance to be paid upon B/L (copy) orIrrevocable 100% L/C at sight | |
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