JIS3106 SM490YA/SM490YB hot-rolled flat steel specification: Thickness--4mm-30mm Width--12mm-200mm Flat steel are divided into three groups by weight 1.Every m less than 19 kg,usually long 3 ~ 9 m (length). 2.Every m less than 19 ~ 60 kg,usually long 3 ~ 7 m (length). 3.Every m greater than 60 kg,usually long 3 ~ 5 m (length). Models for non-standard products, usually 2 ~ 6 m length.
JIS3106 Standard Specification for rolled steels for welded structure. JIS3106 SM490YA/SM490YB flat steel are kind of hot rolled steels to be used for bridges, ships, rolling stocks, petroleum storage tanks,containers and other constructions that are required superiority in weld-ability.
| Grade | C Thickness≤100mm | Si | M | P | S |
| JIS 3106 SM490YA | 0.20max | 0.55 max | 1.60 max | 0.035 max | 0.035 max |
| JIS 3106 SM490YB | 0.20max | 0.55 max | 1.60 max | 0.035 max | 0.035 max |
| Grade | Yield point or proof stress N/mm² | Tensile strength N/mm² | ||||||
| Thickness of steel product (²) mm | Thickness mm | |||||||
| ≤16 | ＞16＜40 | ＞40＜75 | ＞75＜100 | ＞100＜160 | ＞160＜200 | ≤100 | ＞100＜200 | |
| JIS 3106 SM490YA | 365 min | 355 min | 335 min | 325 min | - | - | 490 to 610 | - |
| JIS 3106 SM490YB | ||||||||
Delivery Time: 30-40days Payment Item: 30% TT, or LC and TT. Trade Terms: FOB, CFR, CIF Heat Treatment :anneal,normalizing,quenching, tempering.
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