Centerway Steel Co., Ltd
Centerway Steel Co., Ltd
Centerway Steel Co., Ltd
carbon steel plate,steel coil,stainless steel plate,china export service provider.
carbon steel plate,steel coil,stainless steel plate,china export service provider.
ASTM A738 is a kind of C-Mn-Si steel plates material used to fabric middle or low temperature pressure vessels. Obviously, A738 is divided into three grades or levels :A738 Gr. A, A738 Gr. B, A738 Gr. C .In order to meet the property requirement of ASTM A738/A738M standard, this material must be done heat-treatment.
Grade A plates 2.5 in. [65 mm] and under in thickness shall be supplied in either the normalized or quenched and tempered condition. Grade A plates over 2.5 in. [65 mm] in thickness and Grade B and Grade C plates in all thicknesses shall be quenched-and-tempered. When plates are tempered, the minimum tempering temperature shall be 1100℉ [595℃].
Standard: ASTM A738/A738M
Steel Grade : A738 Grade A, A738 Grade B, A738 Grade C
Thickness :3mm -500mm
Width :1000mm-4000mm
Length :1000mm-18000mm
Chemical Composition
|
Compostion |
A738 Grade A |
A738 Grade B |
A738 Grade C |
|||
|
C ≤ ① |
0.24 |
0.20 |
0.20 |
|||
|
Mn |
Heat analyse |
Thickness ≤65mm |
≤1.50 |
0.90~1.50 |
≤1.50 |
|
|
Thickness＞65mm |
≤1.60 |
0.90~1.60 |
≤1.60 |
|||
|
Product analyse |
Thickness ≤65mm |
≤1.62 |
0.84~1.62 |
≤1.62 |
||
|
Thickness＞65mm |
≤1.72 |
0.84~1.72 |
≤1.72 |
|||
|
P ≤ ① |
0.035 |
0.030 |
0.025 |
|||
|
S ≤ ① |
0.035 |
0.030 |
0.025 |
|||
|
Si |
Heat analyse |
0.15~0.50 |
0.15~0.55 |
0.15~0.50 |
||
|
Product analyse |
0.13~0.55 |
0.13~0.60 |
0.13~0.55 |
|||
|
Cu ≤ |
Heat analyse |
0.35 |
0.35 |
0.35 |
||
|
Product analyse |
0.38 |
0.38 |
0.38 |
|||
|
Ni ≤ |
Heat analyse |
0.50 |
0.60 |
0.50 |
||
|
Product analyse |
0.53 |
0.63 |
0.53 |
|||
|
Cr ≤ |
Heat analyse |
0.25 |
0.30 |
0.25 |
||
|
Product analyse |
0.29 |
0.34 |
0.29 |
|||
|
Mo ≤ |
Heat analyse |
Thickness ≤40mm |
0.08 |
0.20 |
0.08 |
|
|
Thickness＞40mm |
0.08 |
0.30 |
0.08 |
|||
|
Product analyse |
Thickness ≤40mm |
0.09 |
0.21 |
0.09 |
||
|
Thickness＞40mm |
0.09 |
0.33 |
0.09 |
|||
|
V ≤ |
Heat analyse |
0.07 ② |
0.07 |
0.05 |
||
|
Product analyse |
0.08 ② |
0.08 |
0.05 |
|||
|
Nb ≤ |
Heat analyse |
0.04 ② |
0.04 |
③ |
||
|
Product analyse |
0.05 ② |
0.05 |
③ |
|||
|
Nb+V ≤ |
Heat analyse |
0.08 ② |
0.08 |
③ |
||
|
Product analyse |
0.10 ② |
0.10 |
③ |
|||
① means be suitable for both heat analyse and product analyse
② After agreement,can add V and Nb
③ For Grade C, Nb is not the required composition.
Mechanical Property
|
Grade |
Tensile strengthKsi , [Mpa ] |
Yield strengthKsi , [Mpa ] |
ElongationIn 2 in.[50mm],min,% |
|
Grade A |
75-95[515-655] |
45[310] |
20 |
|
Grade B |
85-102[585-705] |
60[415] |
20 |
|
Grade C |
850-100[550-690] |
60[415] |
22 |
Equivalent steel grade
|
Steel Standard |
GB 713 |
JIS G3115 |
ASTM A414/A455 |
DIN 17155 |
En10028-3 |
|
|
Grade A |
16Mng |
SPV315 |
Gr.G |
Materal No |
Mark |
P355N |
|
1.0482 |
19Mn5 |
|||||
|
Grade B/C |
- |
- |
- |
- |
- |
EN10028-6 P460Q |
