E r a m E i l i a

Recommended Flux/Wire Combinations of ATLANTIC for SAW

ATLANTIC Flux/Wire Combination	AWS Norm A 5.17 A 5.23	Main Applications
CHF101/CHW-S3	F7A2/EH14	For 500Mpa grade carbon steel or low alloy steel structures, press vessels, ships, boilers, etc.
CHF102/CHW-S3	F7A4/EH14	For 500Mpa grade carbon steel or low alloy steel
CHF101GX/CHW-SG	F7A4/EG-G	Spiral or longitudinal welded huge diameter pipe made by X65 & X70 steels, or 550Mpa grade steels, it could be four wires welding and the welding speed is 1,700mm-2,000mm per minute.
CHF101GX/CHW-S9	F7A2/EA2-A2	Spiral or longitudinal welded huge diameter pipe made by X65 or X70 steel, it could be four wires welding and the welding speed is 1,700mm-2,000mm per minute.
CHF103/CHW-S2	F6A4/EM12	LPG cylinders, press vessels, ships, general steel structures, etc.
CHF104/CHW-S2	F7A4/EM12	For 500Mpa grade carbon steel or low alloy steel structures, press vessels, ships, boilers, etc.
CHF105/CHW-S3	F7P6/EH14	Low temperature higher than -50℃ press vessels
CHF113/CHW-S7	F62P4/EA3-A3	For 620Mpa high tensile low alloy steel structures
CHF115/CHW-S7	F69P2/EA3-A3	For 690Mpa high tensile low alloy steel structures
CHF301/CHW-S2	F7A0/EM12	For 450Mpa & 500Mpa grade carbon steel or low alloy steel structures, boilers, etc.
CHF43/CHW-S1	F6A0/EL12	For 450Mpa general mild steel structures, etc.
CHF101/CHW-S2	F6A4/EM12	LPG cylinders, 450Mpa grade steel structures, etc.
CHF303/CHW-S4	F7A0/EM13K	For 500Mpa & 550Mpa grade carbon steel or low alloy steel structures.
CHF603/CHW-S8	F62P2/EB3-B3	For 2.25Cr-1Mo heat resistant low alloy steel structures, such as T22 P22 (USA), 10CrMo910 (Germany), STBA24, STPA24 (Japan) steels.
CHF301/CHW-S12	F7A0/EM12K	For 500Mpa grade carbon steel or low alloy steel structures.
CHF101/CHW-S12	F6A4/EM12K	For 450Mpa grade carbon steel or low alloy steel structures.

AWS A5.17 suitable for mild steel and AWS A5.23 suitable for low alloy steel

The Definition of SAW Flux in AWS A5.17 Norm:

F ---- flux

7 ---- The minimum tensile strength is 70lb/mm

6 ---- The minimum tensile strength is 60lb/mm

A ---- The weldment should not be postweld heat treatment

P ---- The weldment should be postweld heat treatment (620℃ x 1h)

The letter and figures behind A or P means temperature required of impact V-notch (AKV 27joules)

Letter or Figure	Temperature (℃) of Test Required
Z	-- (not be required)
0	-18
2	-29
4	-40
5	-46
6	-51
8	-62
10	-73
15	-101

For Example:

F7A2: A flux combines a wire to get a deposited metal. Minimum tensile strength of this deposited metal is 70lb/mm, the weldment should not be postweld heat treatment, and –29℃ should be required to get the minimum 27 joules of impact V-notch for the test piece.

Type of Flux in above Recommended Table:

Sintered (Agglomerate):

CHF101, CHF101GX, CHF102, CHF103, CHF105, CHF113, CHF115, CHF301, CHF303 and CHF603.

Fused: CHF43

AWS Standard of SAW Wires (89’ SFA AWS A5.17)

Chemical Composition:

Item	C	Mn	Si	P	S	Cu*
EL8	≤0.10	0.25-0.60	≤0.07	≤0.035	≤0.035	≤0.35
EL8K	≤0.10	0.25-0.60	0.10-0.25	≤0.035	≤0.035	≤0.35
EL12	0.05-0.15	0.25-0.60	≤0.07	≤0.035	≤0.035	≤0.35
EM12	0.05-0.15	0.80-1.25	≤0.10	≤0.035	≤0.035	≤0.35
EM12K	0.05-0.15	0.80-1.25	0.10-0.35	≤0.035	≤0.035	≤0.35
EM13K	0.07-0.19	0.90-1.40	0.35-0.75	≤0.035	≤0.035	≤0.35
EM15K	0.10-0.20	0.80-1.25	0.10-0.35	≤0.035	≤0.035	≤0.35
EH14	0.10-0.20	1.70-2.20	≤0.10	≤0.035	≤0.035	≤0.35

* Including coating copper

Tolerance Allowed for SAW Wires (mm)

Diameter	1.6	2.0	2.4	3.2	4.0	4.8	5.6	6.4
Tolerance	±0.038	±0.05	±0.05	±0.08	±0.10	±0.10	±0.10	±0.10

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