Marka at Komposisyon ng Kemikal (%)
Grade | C | Mn | P≤ | S≤ | Si | Cr | Mo |
T11 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 0.50-1.00 | 1.00-1.50 |
T12 | 0.05-0.15 | 0.30-0.61 | 0.025 | 0.025 | ≤0.50 | 0.80-1.25 | 0.44-0.65 |
T13 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 1.90-2.60 | 0.87-1.13 |
Mechanical Properties(MPa):
Grade | Tensile Point | Yield Point |
T11 | ≥415 | ≥205 |
T12 | ≥415 | ≥220 |
T13 | ≥415 | ≥205 |

Out Diameter Inspection

Pagsusuri sa Kapal ng Pader

Tapusin ang Inspeksyon

Straightness Inspection

UT Inspeksyon

Pagsusuri ng Hitsura
ASTM A213 alloy seamless steel tubes ay ginawa alinman sa pamamagitan ng cold-drawn o hot rolled, gaya ng tinukoy.Ang grade TP347HFG ay dapat malamig na tapos na.Ang heat treatment ay dapat gawin nang hiwalay at bilang karagdagan sa pag-init para sa mainit na pagbuo.Ang ferritic alloy at ferritic na hindi kinakalawang na asero ay dapat painitin muli.Sa kabilang banda, ang mga austenitic na hindi kinakalawang na asero na tubo ay dapat ibigay sa kondisyong pinainit.Bilang kahalili, kaagad pagkatapos ng mainit na pagbubuo, habang ang temperatura ng mga tubo ay hindi mas mababa sa pinakamababang temperatura ng solusyon, ang mga tubo ay maaaring isa-isang pawiin sa tubig o mabilis na pinalamig ng iba pang paraan.







JIS G3441Alloy Seamless Steel tubes
ASTM A519 Alloy seamless steel pipe
ASTM A335 Alloy seamless steel pipe