| 〔42〕压力容器用调质合金钢锻件 | ||||||||||||||
| （Quenched and Tempered Alloy Steel Forgings for Pressure Vessels) | ||||||||||||||
| 标准代号 | 规格号码 | 记号 | 化学成分（%)Chemical composition | 拉伸试验 Tensile requirements | ||||||||||
| C | Si | Mn | P | S | Ni | Cr | Mo | V | 降伏强度(Mpa) | 抗拉强度(Mpa) | 伸长度(%) | |||
| CNS | 8700 | SFVQ1A | ≦0.25 | ≦0.4 | 1.2-1.5 | ≦0.03 | ≦0.03 | 0.4-1.0 | ≦0.25 | 0.45-0.60 | ≦0.05 | ≧345 | 550-730 | ≧16 |
| JIS | G3204 | SFVQ1A | ≦0.25 | ≦0.4 | 1.2-1.5 | ≦0.03 | ≦0.03 | 0.4-1.0 | ≦0.25 | 0.45-0.60 | ≦0.05 | ≧345 | 550-730 | ≧16 |
| ASTM | A508 | Class 3 | ≦0.25 | 0.15-0.35 | 1.2-1.5 | ≦0.025 | ≦0.025 | 0.4-1.0 | - | 0.45-0.60 | ≦0.05 | ≧345 | 550-725 | ≧18 |
| ASTM | A541 | Class 3 | ≦0.25 | 0.15-0.35 | 1.2-1.5 | ≦0.035 | ≦0.035 | 0.4-1.0 | - | 0.45-0.60 | ≦0.05 | ≧340 | 550-720 | ≧18 |
| CNS | 8700 | SFVQ1B | ≦0.25 | ≦0.4 | 1.2-1.5 | ≦0.03 | ≦0.03 | 0.4-1.0 | ≦0.25 | 0.45-0.60 | ≦0.05 | ≧450 | 620-790 | ≧14 |
| JIS | G3204 | SFVQ1B | ≦0.25 | ≦0.4 | 1.2-1.5 | ≦0.03 | ≦0.03 | 0.4-1.0 | ≦0.25 | 0.45-0.60 | ≦0.05 | ≧450 | 620-790 | ≧14 |
| ASTM | A508 | Class 3A | ≦0.25 | 0.15-0.35 | 1.2-1.5 | ≦0.03 | ≦0.03 | 0.4-1.0 | ≦0.25 | 0.45-0.60 | ≦0.05 | ≧450 | 620-795 | ≧16 |
| ASTM | A541 | Class 3A | ≦0.25 | 0.15-0.35 | 1.2-1.5 | ≦0.035 | ≦0.04 | 0.4-1.0 | ≦0.25 | 0.45-0.60 | ≦0.05 | ≧450 | 620-790 | ≧16 |
| CNS | 8700 | SFVQ2A | ≦0.27 | ≦0.4 | 0.5-1.0 | ≦0.03 | ≦0.03 | 0.5-1.0 | 0.25-0.45 | 0.55-0.70 | ≦0.05 | ≧345 | 550-730 | ≧16 |
| JIS | G3204 | SFVQ2A | ≦0.27 | ≦0.4 | 0.5-1.0 | ≦0.03 | ≦0.03 | 0.5-1.0 | 0.25-0.45 | 0.55-0.70 | ≦0.05 | ≧345 | 550-730 | ≧16 |
| ASTM | A508 | Class 2A | ≦0.27 | 0.15-0.40 | 0.5-1.0 | ≦0.025 | ≦0.025 | 0.5-1.0 | 0.25-0.45 | 0.55-0.70 | ≦0.05 | ≧450 | 620-795 | ≧16 |
| ASTM | A541 | Class 2A | ≦0.27 | 0.15-0.35 | 0.5-0.9 | ≦0.025 | ≦0.025 | 0.5-1.0 | 0.25-0.45 | 0.55-0.70 | ≦0.05 | ≧450 | 620-790 | ≧16 |
| CNS | 8700 | SFVQ2B | ≦0.27 | ≦0.4 | 0.5-1.0 | ≦0.03 | ≦0.03 | 0.5-1.0 | 0.25-0.45 | 0.55-0.70 | ≦0.05 | ≧450 | 620-790 | ≧14 |
| JIS | G3204 | SFVQ2B | ≦0.27 | ≦0.4 | 0.5-1.0 | ≦0.03 | ≦0.03 | 0.5-1.0 | 0.25-0.45 | 0.55-0.70 | ≦0.05 | ≧450 | 620-790 | ≧14 |
| ASTM | A508 | Class 2A | ≦0.27 | 0.15-0.35 | 0.5-1.0 | ≦0.025 | ≦0.025 | 0.5-1.0 | 0.25-0.45 | 0.55-0.70 | ≦0.05 | ≧450 | 620-795 | ≧16 |
| ASTM | A541 | Class 2A | ≦0.27 | 0.15-0.35 | 0.5-1.0 | ≦0.035 | ≦0.04 | 0.5-1.0 | 0.25-0.45 | 0.55-0.70 | ≦0.05 | ≧450 | 620-790 | ≧16 |
| CNS | 8700 | SFVQ3 | ≦0.23 | ≦0.4 | 0.2-0.4 | ≦0.02 | ≦0.02 | 2.75-3.90 | 1.5-2.0 | 0.4-0.6 | ≦0.03 | ≧490 | 620-790 | ≧18 |
| JIS | G3204 | SFVQ3 | ≦0.25 | ≦0.4 | 0.2-0.4 | ≦0.02 | ≦0.02 | 2.75-3.90 | 1.5-2.0 | 0.4-0.6 | ≦0.03 | ≧490 | 620-790 | ≧18 |
| ASTM | A508 | Class 3A | ≦0.25 | 0.15-0.35 | 1.2-1.5 | ≦0.025 | ≦0.025 | 0.4-1.0 | ≦0.25 | 0.45-0.60 | ≦0.05 | ≧450 | 620-790 | ≧16 |
| ASTM | A541 | Class 3A | ≦0.25 | 0.15-0.35 | 1.2-1.5 | ≦0.025 | ≦0.025 | 0.4-1.0 | ≦0.25 | 0.45-0.60 | ≦0.05 | ≧450 | 620-790 | ≧16 |