公司名称：聊城市亿元方盛钢管有限公司

标准

BS3059锅炉及过热器用钢管

STEELBOILER AND SUPERHEATER TUBES

主要生产牌号

Mainsteel tube grade

360440 243 620-460 622-490

化学成分

ChemicalComposition

Grade grade

Chemical composition limits, %

C

Si

Mn

P max

S max

Ni

Cr

Mo

360

≤0.17

0.10-0.35

0.40-0.80

0.035

0.035

/

/

/

440

0.12-0.18

0.10-0.35

0.90-1.20

0.035

0.035

/

/

/

243

0.10-0.20

0.10-0.35

0.40-0.80

0.035

0.035

≤0.20

≤0.30

0.25-0.30

620-460

0.10-0.15

0.10-0.35

0.40-0.70

0.030

0.030

≤0.20

0.70-1.10

0.45-0.65

622-490

0.08-0.15

≤0.50

0.30-0.70

0.025

0.020

≤0.20

2.00-2.50

0.90-1.20

机械性能

Mechanicalproperties

Grade grade

Mechanical properties



Steel type

Steel number

Yield strength MPa

Min.

Tensile strength MPa

Elongation %

Min.

Carbon

360

235

360-510

24



Carbon manganese

440

245

440-580

21



0.3%Mo

243

275

480-630

22



1%Cr0.5%Mo

620-460

180

460-610

22



2.25%Cr1%Mo

622-490

275

490-640

2