Ọkpọkọ ígwè carbon nke Helical-seam ASTM A139 Grade A, B, C
Ngwongwo Mekaniki
| Ọkwa A | Klas B | Ọkwa C | Ọkwa D | Ọkwa E | |
| Ike mmepụta, min, Mpa (KSI) | 330(48) | 415(60) | 415(60) | 415(60) | 445(66) |
| Ike nrụgide, min, Mpa (KSI) | 205(30) | 240(35) | 290(42) | 315(46) | 360(52) |
Ngwakọta Kemịkalụ
| Ihe | Ihe mejupụtara ya, Oke, % | ||||
| Ọkwa A | Klas B | Ọkwa C | Ọkwa D | Ọkwa E | |
| Kabọn | 0.25 | 0.26 | 0.28 | 0.30 | 0.30 |
| Manganese | 1.00 | 1.00 | 1.20 | 1.30 | 1.40 |
| Fọsfọs | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 |
| Sọlfọ | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 |
Nnwale Hydrostatic
Onye nrụpụta ga-anwale ogologo paịpụ ọ bụla iji nweta nrụgide hydrostatic nke ga-eme ka nrụgide nke na-erughị 60% nke ike mmepụta kacha nta akọwapụtara na okpomọkụ ụlọ dị n'ime paịpụ ahụ. A ga-eji nha nha a chọpụta nrụgide ahụ:
P=2St/D
Mgbanwe Ndị A Na-ekwe Omume n'Ibu na Nha
A ga-atụ ogologo paịpụ ọ bụla iche iche, ibu ya agaghịkwa agbanwe karịa 10% karịa ma ọ bụ 5.5% n'okpuru ibu ya, site na iji ogologo ya na ibu ya kwa otu ogologo.
Dayameta mpụta agaghị agbanwe ihe karịrị ±1% site na dayameta mpụta aha akọwapụtara.
Ọkpụrụkpụ mgbidi n'oge ọ bụla agaghị agafe 12.5% n'okpuru ọkpụrụkpụ mgbidi akọwapụtara.
Ogologo
Ogologo otu ihe na-enweghị usoro: 16 ruo 25ft (4.88 ruo 7.62m)
Ogologo ugboro abụọ: karịa 25ft ruo 35ft (7.62 ruo 10.67m)
Ogologo otu: mgbanwe a na-anabata ±1in
Ngwụcha
A ga-eji nsọtụ dị larịị tinye ihe ndị dị n'ime ọkpọkọ ahụ, a ga-ewepụkwa ihe ndị dị n'akụkụ ya.
Mgbe njedebe paịpụ ahụ dị ka njedebe bevel, akụkụ ya ga-adị ogo 30 ruo 35
