Letlapa la tšepe le nang le matla a phahameng a tlase ASTM A709GR.50W hape e rehiloe e le poleiti ea tšepe ea boemo ba leholimo A709 Kereiti ea 50W molemong oa thepa ea eona e thibelang kutu ea sepakapaka. Ho ea ka likarolo tse fapaneng tsa lik'hemik'hale tse kholo li na le, A709 Grade 50W e arotsoe e le A709Gr50w mofuta A, A709Gr50w mofuta oa B, A709Gr50w mofuta C. Lihlopha tsena tse tharo tsa tšepe li lekana le tlhaloso ASTM A 588/A 588M A588 Grade A,A58 le A588 Grade C. Low alloy steel plate A709 Grade 50W le tsona di ne di na le matla a fokolang a fokolang a fokolang a lekanang ho 345 Mpa e le A709 Grade 50 steel plate.
Lipoleiti tsa tšepe tsa A709 Gr.50W, tse tsebahalang ka thepa ea eona e thibelang kutu ea sepakapaka. Lipoleiti tsa tšepe tsa A709 Grade 50W li sebelisoa haholo mochining oa kaho, mechini ea meepo, teraka, marokho, meaho ea meaho ea khatello jj.
Litlhoko tsa Tekheniki le Litšebeletso tse Eketsehileng:
Bakeng sa thepa e eketsehileng ka poleiti ea tšepe ea A709 Gr.50S, ka kopo, li hlahlobe ka ho latela;
A709 Sehlopha sa 50S Sebopeho sa lik'hemik'hale Tlhahlobo ea mocheso
Element | Lik'hemik'hale |
C, max | 0.23 |
Mong | 0.50-1.60A |
Ke, max | 0.40 |
V, boholo | 0.15B |
Nb, boholo | 0.05B |
P, boholo | 0.035 |
S, max | 0.045 |
Ke, max | 0.60 |
Ke xma | 0.45 |
Cr, max | 0.35 |
Mo, max | 0.15 |
Sehlopha sa A709 | E teteaneng mm |
Khefutsa [MPa] |
Tensile [MPa] | Elongtation Min % | phokotso Min % |
HB | |||
Letlapa la tšepe | Tšepe ea sebopeho | ||||||||
8in[200mm] | 2in[50mm] | 8in[200mm] | 2in[50mm] | ||||||
36[250] | ≤100 | [250] mets | 400-550 | 20 | 23 | 20 | 21 | … | … |
[250] mets | 400mins | … | … | 20 | 19 | … | … | ||
50[345] | ≤100 | 345 mets | 450mins | 18 | 21 | 18 | 21F | … | … |
50S[345S] | G | 345-450HI | 450minH | … | … | 18 | 21 | … | … |
50W[345W] HPS50W[HPS345W] |
≤100 | 345 mets | 485 mets | 18 | 21 | 18 | 21J | … | … |
HPS70W[HPS485W] | ≤100 | 485 mets | 585-760 | … | 19K | … | … | … | … |
100 [690], 100W [690W],HPS100W [HPS690W] | ≤65 | 690minB | 760-895 | … | 18K | … | … | L | 235-293M |
100 [690], 100W [690W], | 65-100 | 620minB | 690-895 | … | 16K | … | … | L | … |