Steel Grade | C, max.% | Mn % | P, max | S, max | Si, min | Cr, max | Cu, max | Mo, max | Ni, max | V, max |
---|---|---|---|---|---|---|---|---|---|---|
Grade A |
0.25 | 0.27 - 0.93 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
Grade B |
0.30 | 0.29 - 1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
Grade C |
0.35 | 0.29 - 1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 |
0.08 |
Grade | Tenssile Test MPa or N/mm2 | Remarks (Similar to JIS) | |
---|---|---|---|
MIn. Yield Point | Tensile Strength | ||
Gr A | 205 | 330Min | (STPG370) |
Gr B | 240 | 415Min | (STPG410) |
Gr C | 275 | 485Min | (STPG480) |
Pipe Type | Pipe Sizes | Tolerances | |
---|---|---|---|
Cold Drawn | OD | ≤48.3mm | ±0.40mm |
≥60.3mm | ±1%mm | ||
WT | ±12.5% |
NPS | On One Length from Each Lot of | |
---|---|---|
Tensile | 5 and smaller | 400 or less |
6 and larger | 200 or less | |
Bending | 2 and smaller | 400 or less |
Flattening | 2 through 5 | 400 or less |
6 and over | 200 or less |
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