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Low Alloy Steels

F Cr-Mo 2 (MOD)

AWS: SFA 5.28 ER90S-B3

EN ISO CODE: 21952-B-W 62 I1 2C1M

F Cr-Mo 2 (MOD) is a copper-coated solid wire for GTAW, available in bright finish, gives smooth flow, stable arc and spatter free under optimum welding conditions. This wire having lesser impurities i.e. S, P, will improve the subzero impact property. It gives radiographic quality welds. It is suitable for welding 2.25Cr - 1Mo steel. The weld metal possesses good high temperature properties. Especially suitable for welding of pipes and tubes of matching composition in Power plants, Refineries, Petrochemicals, Fertilizer plants, etc. Suitable for welding of ASTM steels: Grade F22 (class 1 & 3) of SA-182 and SA-336, Grade T4, T22 of SA-199, Grade T22 of SA- 213, Grade WC9 of SA-217, Grade P22 of SA-335, Grade FP22 of SA-369, Grade 22, 22L of SA-387, Grade CP22 of SA-426, Grade 22 of SA-541, Class 1 of A, B types of SA-542, etc.

Approvals

CHEMICAL COMPOSITION OF SOLID WIRE (%):

Element	C	Mn	Si	S	P	Cr	Mo	Cu	Sn	As	Sb
Percent	0.08	0.46	0.50	0.007	0.009	2.50	1.00	0.05	0.003	0.003	0.002

X-factor: (10P + 5Sb + 4Sn + As) / 100 ≤ 12 ppm (elements in ppm)

J-factor: (Mn+Si) x (P+Sn) 10 ≤ 120

MECHANICAL PROPERTIES OF ALL WELD METAL

(PWHT: 690 C FOR 1 HR)

UTS	Ys	Elongation	CVN Impact Strength (J)
(MPa)	(MPa)	(L= 5d)%	at minus 20°C
680	600	22	50

CURRENT AND PACKING DATA

STANDARD SIZE : Diameter 1.6 mm, 2.0 mm, 2.4 mm & 3.2 mm in cut lengths of 500 mm / 1000 mm each.

QUANTITY : 5 kg wire put in an air-tight polythene bag and finally packed in a plastic container. Identification AWS code is punched on each wire.

SHIELDING GAS

Argon

CURRENT CONDITION

DCEN

WELDING POSITION

H, F, VU, OH

Low Alloy Steels