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Home > ASTM > ASTM A543 alloy steel plates for pressure vessels

ASTM A543 alloy steel plates for pressure vessels

A543 in the standard ASTM A543/A543M is a kind of Ni-Cr-Mo alloy steel plates material used to fabric high temperature pressure vessels. ASTM A543 have two grades or levels. They are : grade B and grade C. A543 need to be done the (Quenching + Tempering ) heat-treatment to meet the property requirement in the standard ASTM A543/A543M.

Standard: ASTM A543/A543M
Steel Grade : A543 GR B, A543 GR C
Thickness :3mm -260mm
Width :1000mm-4000mm
Length :1000mm-18000mm
MOQ: 1 PC
Delivery time : 10-40 days (Production)
Stock : Unavailable
MTC: Available
Payment Term : T/T or L/C At sight .

ASTM A543 Finished goods condition:
hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement.

ASTM A543 Surface conditions:
scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement.

ASTM A543 steel chemical composition : %

Composition		Grade B	Grade C
C≤	Heat analyse	0.20	0.18
C≤	Product analyse	0.20	0.18
Mn ≤	Heat analyse	0.40	0.40
Mn ≤	Product analyse	0.40	0.40
S ≤ P ≤	Heat analyse	0.020	0.020
S ≤ P ≤	Product analyse	0.020	0.020
Si	Heat analyse	0.15~0.40	0.15~0.40
Si	Product analyse	0.13~0.45	0.13~0.45
Ni ≤	Heat analyse	2.25~4.00	2.00~3.50
Ni ≤	Product analyse	2.18~4.07	1.93~3.57
Cr	Heat analyse	1.00~1.90	1.00~1.90
Cr	Product analyse	0.94~1.96	0.94~1.96
Mo	Heat analyse	0.20~0.65	0.20~0.65
Mo	Product analyse	0.16~0.69	0.16~0.69
V	Heat analyse	0.03	0.03

ASTM A543 Principal Design Features :
One of the most widely used precipitation hardening grades in the business. While soft and ductile in the solution annealed condition, it is capable of high properties with a single precipitation or aging treatment. Characterized by good corrosion resistance, high harness, toughness and strength.

ASTM A543 Machinability :
Long, gummy chips characterize this alloys machinability. It can be machined in the annealed condition, however condition H1150M will yield best results. Post machining solution treatment of parts will be required prior to final hardening if machining in this condition.

ASTM A543 Heat Treatment :
CONDITION A--Soak at 1900 F (1038 C) for 30 minutes and cool below 60 F (16 C) for complete martensite transformation. CONDITION H 950- Treat Condition A material at 900 F(482 C) for 1 hour, air cool.. CONDITION H925, H1025, H1075, H1100, H1150- Soak solution treated material for 4 hours at specified temperature, air cool, CONDITION H1150M- Soak solution treated material at 1400 F (760 C) for 2 hours, air cool, then re-heat to 1150 F (620 C) for 4 hours and air cool.

ASTM A543 Welding :
Successfully welded by common fusion and resistance methods, this alloy should not be joined by oxyacetylene welding. AWS E/ER630 filler metal is recommended if required.

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