ER 90S-B9 (P91) Tig | Certilas: The filler metal specialist

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PRODUCT SPECIFICATIONS
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Type

Medium alloyed, high-strength creep resistant 9% Cromium alloy.

classification

AWS

A 5.28: ER 90S-B91

EN ISO

21952-A: W CrMo91

W.Nr.

1.4903

Applications

Designed for welding equivalent type 91~ 9% Cr Steels modified with small aditions of Niobium, Vanadium and Nitrogen to offer improved long term creep properties. This alloy is specialy intended for high integrity structural service at elevated temperature such as: Headers, main steam piping and turbine casings, gasification plants etc.

Type

Medium alloyed, high-strength creep resistant 9% Cromium alloy.

Applications

Designed for welding equivalent type 91~ 9% Cr Steels modified with small aditions of Niobium, Vanadium and Nitrogen to offer improved long term creep properties. This alloy is specialy intended for high integrity structural service at elevated temperature such as: Headers, main steam piping and turbine casings, gasification plants etc.

Properties

Filler metal specifically intended for high integrity structural service at elevated temperature so the minor alloy additions responsible for its creep strenghth are kept above the minimum considered necessary to ensure satifactory performance.

Classification

AWS

A 5.28: ER 90S-B91

EN ISO

21952-A: W CrMo91

F-nr

6

FM

4

W.Nr.

1.4903

Suitable for

P91: 9%Cr-1% Mo ISO 15608: ~5,4 C ≤ 0,35 %, 7,0 % ≤ Cr < 10,0 % und 0,7 < Mo ≤ 1,2 %

1.7386, 1.7688, 1.7389, 1.4903, 1.4955

X12CrMo 9 1, GX12CrMo 10 1, X11CrMo9-1, X7CrMo9-1, X10CrMoVNb9-1, GX12CrMoVNbN9-1

ASTM: Grade 91, T91, P91, F91, FP91, A182/A336 grade F91, A213 grade T91, A217 grade C12A, A234 grade WP91, A387 grade 91, A335 grade P91

STPA28, STBA28

Approvals

CE

Welding positions

Redrying

Not required

Gas acc. EN ISO 14175

I1

Analysis

C	Si	Mn	P	S	Cr	Ni	Mo	Ti	V	Cu	Al	Zr	Other
0.1	0.32	0.52			9.15	0.65	0.95		0.22				0.04

Mechanical Properties

Heat Treatment	R_P0,2 (MPa)	Rm (MPa)	A5 (%)	Impact Energy (J) ISO-V	Hardness
Heat Treatment	R_P0,2 (MPa)	Rm (MPa)	A5 (%)	RT	Hardness
730°C- 760°C 3h	520	750	19	200	HRc

Product sheet

declaration of performance

SDS

Product sheet

SDS

tig rod for welding P91 creep and heat resistant steels ER 90S-B9

Disclaimer

Whilst all reasonable efforts have been made to ensure the accuracy of the information contained, the information contained or otherwise referenced herein is presented only as “typical” without guarantee or warranty, and any liability incurred from any reliance thereon is expressively disclaimed. Typical data are those obtained when welded and tested in accordance to prescribed standards, and should not be assumed to be the expected results in a particular application or weldment. Other tests and procedures may produce different results. Users are cautioned to confirm by qualification testing, or other appropriate means, the suitability of any welding consumable and procedure before use in the intended application. The selection and use of specific products is solely within the control of, and remains the sole responsibility of the customer. The right to change design and/or specifications without notice is reserved.