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API Trim No. 1 2 3 4 5 5A 6 7 8 8A 9 10 11 12 13 14 15 16 17 18

Material 410 304 310 Hard 410 Hardfaced Hardfaced CR13 Cu-Ni CR13 Hard 410 CR13 Hardfaced CR13 Hardfaced Monel 316 Monel Hardfaced 316 Hardfaced Alloy 20 Alloy 20 Hardfaced 304 Hardfaced 316 Hardfaced 347 Hardfaced Alloy 20 Hardfaced

Mat'l

Castings

CR13

Seat / Disc CR13 CR13 304 304 310 310 Hard CR13 Hard CR13 HF HF Ni-Cr Ni-Cr Cu-Ni Cu-Ni Hard CR13 Hard CR13 HF 410 Ni-Cr 410 Monel Monel 316 316 HF Monel HF 316 Alloy 20 Alloy 20 HF Alloy 20 HF HF HF HF HF HF HF HF

A217-CA15

Forgings A182-F6 or A182-F6a

Bar Stock A276-T410 or A276-T420

310

N/A

A182-F310

304

A351-CF8 { see description }

A182-F304 { see description }

A276-T310 A276-304 / A479-304 { see description }

Monel

N/A { see description } { see description } { see description }

N/A { see description } { see description } { see description }

N/A { see description } { see description } { see description }

316

A351-CF8M

A182-316

A276-T316

Alloy 20

A351-CN7M

B473-N08020

B473-N08020

HF 347

N/A

N/A

N/A

Hard CR13 Hardfaced Ni-Cr Cu-Ni

Backseat CR13 304 310 CR13 CR13 CR13 CR13 CR13 CR13 CR13 Monel 316 Monel 316 Alloy 20 Alloy 20 304 316 347 Alloy 20

Stem CR13 304 310 CR13 CR13 CR13 CR13 CR13 CR13 CR13 Monel 316 Monel 316 Alloy 20 Alloy 20 304 316 347 Alloy 20

Notes

Seats 750 BHN min.

Seats 750 BHN min.

UNS AWS A5.9 ER410 AWS A5.9 ER310

Description

S30400 { see description } AWS A5.13 ERCoCr-A { see description } { see description } { see description } J92900 (Casting) / S31600 (Forging & Barstock) N08007 (Casting) / N08020 (Forging & Barstock) AWS A5.13 ERCoCr-A

Stainless Steel Type 304 Case hardened by nitriding to a thickness of 0.13 mm [ 0.005 in ]

13% Cr, 410SS, or F6 Stainless Steel Type 310

Stellite 6 Manufacturer's standard hardfacing, with 25% Fe maximum. Manufacturer's standard, with 30% Ni minimum. Manufacturer's standard.

Stainless Steel Type 316

Stellite Stainless Steel Type 347