| RHIF. | GRADD | YSTOD MAINT | SAFON | ||
| OD/mm | WT/mm | L/m | |||
| 1 | S275J0H | 48-114 | 4-16 | 6-12.2 | EN{0}} |
| 2 | S275J2H | 114-340 | 4.5-36 | 6-15 | |
| 3 | S355J0H | ||||
| 4 | S355J2H | ||||
| 5 | S355J2H | ||||
| Gradd : | S275J0H | ||
| Rhif: | 1.0149 | ||
| Dosbarthiad: | Dur strwythurol nad yw'n aloi | ||
| Safon: |
|
Cyfansoddiad cemegol % o ddur S275J0H (1.0149): EN 10210-1-2006
| Ni chaniateir dull dadocsidiad FN=rimming steels C < 0.2 am drwch =< 40 mm, CEV < 0.41 / 0.48 for thickness 16 / 65 mm |
| C | Mn | P | S | N |
| uchafswm 0.22 | uchafswm 1.5 | uchafswm 0.035 | uchafswm 0.035 | uchafswm 0.009 |
Priodweddau mecanyddol dur S275J0H (1.0149)
| Trwch enwol (mm): | i 3 | 3 - 100 | 100 - 120 |
| Rm- Cryfder tynnol (MPa) | 430-580 | 410-560 | 400-540 |
| Trwch enwol (mm): | i 16 | 16 - 40 | 40 - 63 | 63 - 80 | 80 - 100 | 100 - 120 |
| ReH- Cryfder cynnyrch lleiaf (MPa) | 275 | 265 | 255 | 245 | 235 | 225 |
| KV- Egni effaith (J) | 0 gradd 27 |
| Trwch enwol (mm): | i 40 | 40 - 63 | 63 - 100 | 100 - 120 |
| A— Min. hiriad ar dorri asgwrn (%) hydred., | 23 | 22 | 21 | 19 |
Tagiau poblogaidd: tiwb dur strwythurol grawn, gweithgynhyrchwyr tiwb dur strwythurol grawn Tsieina, cyflenwyr, ffatri



