ASTM A387 boiler steel plate pressure vessel steel sheet

ASTM A387 boiler steel plate pressure vessel steel sheets are chromium-molybdenum alloy steel plates for welded boilers and pressure vessels manufactured for elevated temperature service. Available A387 steel grades are A387 grade 2, 12, 11, 22, 22L, 21, 21L, 5, 9 and 91. The A387 steel grades are available in 2 strength levels - class1 and class 2. The most commonly used A387 steel grades are grade 12, 11, 22, and 5. The maximum thickness of ASTM A387 boiler steel plate pressure vessel steel sheet is limited only by the capacity of the composition to meet the specified mechanical property requirements.

Consult online bb@bebonchina.com

Steel Properties

ASTM A387 boiler steel plate pressure vessel steel sheet chemical composition:

Grade	UNS	C	Mn	P	S	Si	Cr	Mo	Others
Grade 5	S50200	≤0.15	0.25-0.66	0.025	0.025	≤0.55	3.90-6.10	0.40-0.70	-
Grade 9	K90941	≤0.15	0.25-0.66	0.025	0.025	≤1.05	7.90-10.10	0.85-1.15	*A
Grade 11	K11789	0.04-0.17	0.35-0.73	0.025	0.025	0.44-0.86	0.94-1.56	0.40-0.70	-
Grade 12	K11757	0.04-0.17	0.35-0.73	0.025	0.025	0.13-0.45	0.74-1.21	0.40-0.65	-
Grade 22	K21590	0.04-0.15	0.25-0.66	0.025	0.025	≤0.50	1.88-2.62	0.85-1.15	-
Grade 22L	K21590	≤0.12	0.25-0.66	0.025	0.025	≤0.50	1.88-2.62	0.85-1.15	-
Grade 91	K90901	0.06-0.15	0.25-0.66	0.025	0.012	0.18-0.56	7.90-9.60	0.80-1.10	*B

*All values are minimum unless a range is provided or otherwise specified and shall be based on product analysis.
*A – V:≤0.05; B – Ni:≤0.43,V:0.16-0.27,Co:0.05-0.11,N:0.025-0.080,Al:≤0.02,Ti≤0.01,Zr≤0.01.
*All values in both *A & *B shall be furnished with the unit "%".

ASTM A387 boiler steel plate pressure vessel steel sheet mechanical properties:

Grade	Class	Tensile Strength	Yield Strength	Elongation in 2 inches
Grade	Class	(Mpa) min.	(MPa) min.	(%) max.
ASTM A 387 Grade 5	Class 1	415-585	205	18
ASTM A 387 Grade 5	Class 2	515-690	310	18
ASTM A 387 Grade 9	Class 1	415-585	205	18
ASTM A 387 Grade 9	Class 2	515-690	310	18
ASTM A 387 Grade 11	Class 1	415-585	240	22
ASTM A 387 Grade 11	Class 2	485-620	310	22
ASTM A 387 Grade 12	Class 1	380-550	230	22
ASTM A 387 Grade 12	Class 2	450-585	275	22
ASTM A 387 Grade 22	Class 1	415-585	205	18
ASTM A 387 Grade 22	Class 2	515-690	310	18

ASTM A387 steel equivalent grades:
Warning! Only for reference

USA		European	Germany	UK (British)	France	Russia
ASTM	ASME	EN 10028	DIN	BS	AFNOR 36206	GOST
A387 5	SA387 5	X12CrMo5	---	---		15KH5M
A387 9	SA387 9	---	---	---
A387 11	SA387 11	13CrMoSi5-5	---	621B
A387 12	SA387 12	13CrMo4-5	13CrMo44	620B	15CD2.05	12KHM
A387 22	SA387 22	10/11CrMo9-10	10CrMo9-10	622-515B	12CD9-10	10KH2M
A387 91	SA387 91	10CrMoVNb9-1	---

Application

ASTM A387 boiler steel plate pressure vessel steel sheet application:
The molybdenum component in ASTM A387 boiler steel plate pressure vessel steel sheet increases its tensile strength at high temperatures, and it also provides high resistance against oxidation and corrosion by increasing the lattice strain of the steel structure. That effectively stops the corrosive agents from dissolving the iron out of the steel structure. ASTM A387 boiler steel plate pressure vessel steel sheet is good option for heat-resistant pressure vessels and sour gas environments.

BBN Group recommends ASTM A387 boiler steel plate pressure vessel steel sheet to help you understand the detailed specifications of BBN Group products and the content of services. You can also view related cases and videos, you can also view all BBN Group products.

Related Products

More Products