best ASTM B637 UNS N07500 Nickel Alloy Bars, Forgings, and Forging Stock for Moderate or High Temperature Service

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Quick Details
Steel Grade:
ASTM B637 UNS N07500 Grade 684
Place of Origin:
Shanghai, China
Model Number:
hot- and cold-worked precipitation-hardenable nickel alloy rod,
moderate or high temperature service
Alloy Or Not:
Is Alloy
Alloy Steel Bar
ASTM B637 - 12
ASTM B637 UNS N07500
Main products:
nickel alloy rod, bar, forgings for high temperature service
hot- and cold-worked precipitation-hardenable
Surface treatment:
7.94-19.05mm hot- or cold-finished solution annealed,pickled ,descaled
hot- or cold-finished, solution annealed, ground or turned
nickel alloy rod, bar, forgings, and forging stock
Supply Ability
Supply Ability:
300 Ton/Tons per Month
Packaging & Delivery
Packaging Details
Seaworthy packing or as the customers'requirement
Product Description

1. Scope


1.1 This specification covers hot- and cold-worked precipitation-hardenable nickel alloy rod, bar, forgings, and forging stock for moderate or high temperature service (Table 1).

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

TABLE 1 Chemical Requirements

ElementComposition Limits, %
 UNS N07022UNS N07208UNS N07252
Grade 689)
UNS N07001
Grade 685)
UNS N07500
Grade 684)
UNS N07750
Grade 688)
UNS N07718
Grade 718)
Carbon0.010 max0.04–0.080.10–0.200.03–0.100.15 max0.08 max0.08 max
Manganese0.5 max0.3 max0.50 max1.00 max0.75 max1.00 max0.35 max
Silicon0.08 max0.15 max0.50 max0.75 max0.75 max0.50 max0.35 max
Phosphorus0.025 max0.015 max0.015 max0.030 max0.015 max...0.015 max
Sulfur0.015 max0.015 max0.015 max0.030 max0.015 max0.01 max0.015 max
Cobalt1.0 max9.0–11.09.00–11.0012.00–15.0013.00–20.001.00 maxA1.0 maxA
(Nb) + tantalum
Aluminum0.5 max1.38–1.650.75–1.251.20–1.602.50–3.250.40–1.000.20–0.80
Zirconium...0.020 max...0.02–0.12.........
Boron0.006 max0.003–0.0100.003–0.010.003–0.010.003–0.01...0.006 max
Iron1.8 max1.5 max5.00 max2.00 max4.00 max5.00–9.00remainderB
Copper0.5 max0.1 max...0.50 max0.15 max0.50 max0.30 max
NickelremainderBremainderBremainderBremainderBremainderB70.00 min50.0–55.0
Tantalum0.2 max0.1 max...............
Columbium (Niobium)...0.2 max...............
Tungsten0.8 max0.5 max...............
 UNS N07080
Grade 80A)
UNS N07752UNS N09925UNS N07725   
Carbon0.10 max0.020–0.0600.03 max0.03 max   
Manganese1.00 max1.00 max1.0 max0.35 max   
Silicon1.00 max0.50 max0.5 max0.20 max   
Phosphorus...0.008 max0.03 max0.015 max   
Sulfur0.015 max0.003 max0.03 max0.010 max   
Cobalt...0.050 max......   
(Nb) + tantalum
...0.70–1.200.5 max (Nb only)2.75–4.00   
Aluminum0.50–1.800.40–1.000.1–0.50.35 max   
Boron...0.007 max......   
Iron3.00 max5.00–9.0022.0 minremainderB   
Copper...0.50 max1.5–3.0...   
Zirconium...0.050 max......   
Vanadium...70.0 min......   
NickelremainderB70.0 min42.0–46.055.0–59.0   

A If determined.

B The element shall be determined arithmetically by difference.

† Chromium content was corrected editorially.


2. Referenced Documents (purchase separately)

ASTM Standards

B880 Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys and Cobalt Alloys

E8 Test Methods for Tension Testing of Metallic Materials

E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

E139 Test Methods for Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic Materials

E1473 Test Methods for Chemical Analysis of Nickel, Cobalt, and High-Temperature Alloys



Bars And Rods - Cold-Worked Nickel Alloy Bars - Cold-Worked Nickel Alloy Forgings - Cold-Worked Nickel Alloy Rods - Forgings - High-Temperature Service Applications - High-Temperature Services - Hot-Worked Nickel Alloy Bars - Hot-Worked Nickel Alloy Forgings - Hot-Worked Nickel Alloy Rods - Nickel-Chromium Alloys - Precipitation Hardening

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