ASTM A841/A841M TMCP steel plates for pressure vessels

ASTM A841/A841M TMCP steel plates for pressure vessels

ASTM A841 is a kind steel plates used to fabric multilayer pressure vessels. ASTM A841 steel plate is produced by TMCP process.

Standard: ASTM A841/A841M
Steel Grade : A841
Thickness :1.2mm -500mm
Width :1000mm-4000mm
Length :1000mm-18000mm
MOQ: 1 PC
Delivery time : Promptly ( Stock) or 10-40 days (Production)
Stock : Available
MTC: Available
Payment Term : T/T or L/C At sight .

ASTM A841 steel chemical composition (%) :

① If the carbon equivalent of the heat analyse is not more than 0.47%, the Mn composition of the heat analyse can be more than 1.35%, but must less than 1.60%. In this case , the way of carbon equivalent is as the following : CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15(%) . And if in this case, the Mn composition of the product analyse should be not more than 12% Mn composition of the heat analyse.

② 0.020% pure aluminium, or 0.015% acid aluminium

ASTM A841 Abstract :
ASTM A841 covers steel plates produced by the thermo-mechanical control process (TMCP). The plates are intended primarily for use in welded pressure vessels. The steel shall be killed and shall conform to specified fine austenitic grain size and chemical composition requirements. If the plates are to be subjected to warm forming or post-weld heat treatment, the test coupons shall be subjected to heat treatment to simulate such fabrication operations. The tension test and notch toughness test requirements are presented in details. Two tension tests shall be made from each plate-as-rolled. One test coupon shall be taken from a corner of the plate on each end.