Kobelco; AWS A5.28 ER 90SB91; MG-S90B91; GMAW (Solid wire); P91 Welding Wire
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Kobelco; AWS A5.28 ER 90SB91; MG-S90B91; GMAW (Solid wire); P91 Welding Wire

Kobelco; AWS A5.28 ER 90SB91; MG-S90B91; GMAW (Solid wire); P91 Welding Wire

Description

Features:
  • Applied for ASTM A387 Gr.91 and equivalents
  • Excellent creep rapture strength
Classification: AWS A5.28 ER90S-B91
Shielding gas: Ar-2~5%O2, Ar-5~20%CO2
Polarity: DCEP

 

Packaging data

φ mm
 Spool
1.2
 10kg
 20kg
Volume mm
 240W, 110H, 230L
 280W, 110H, 270L

Composition (wire mass%)


 Typical
 Guarantya
C
 0.12
 0.07~0.13
Si
 0.23
 0.15~0.50
Mn
 0.63
 1.20
P
 0.004
 0.010
S
 0.005
 0.010
Ni
 0.15
 0.80
Co
 0.41
 -
Cr 8.38
 8.00~10.50
Mo
 0.98
 0.85~1.20
Cu 0.01
 0.20
Nb 0.06
 0.02~0.10
V 0.18
 0.15~0.30
N 0.04
 0.03~0.07
Al <0.01
 0.04
Mn+Ni 0.78
 1.50
Note: aSingle values are maximium.

Welding parameters (A)

φ mm
 1F, 1G, 2F
 2G, 3G uphill, 4G
1.2
 260~320
 140~200

All-weld mechanical properties


 Typical
 Guaranty
0.2%YS (MPa)
 590
 414min.
TS (MPa)
 730
 621min.
El on 4d (%)
 23
 15min.
IV 0℃ (J)
 30
 -
PWHT (°Cxh) 760x2
 760±15x2
SG Ar-5%CO2 Ar-5%CO2

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